The Carboniferous ( / ˌ k ɑːr b ə ˈ n ɪ f ər ə s / KAR -bə- NIF -ər-əs ) is a geologic period and system of the Paleozoic era that spans 60 million years from the end of the Devonian Period 358.9 Ma (million years ago) to the beginning of the Permian Period, 298.9 Ma. It is the fifth and penultimate period of the Paleozoic era and the fifth period of the Phanerozoic eon . In North America , the Carboniferous is often treated as two separate geological periods, the earlier Mississippian and the later Pennsylvanian .
180-425: Pembrokeshire ( / ˈ p ɛ m b r ʊ k ʃ ɪər , - ʃ ər / PEM -bruuk-sheer, -shər ; Welsh : Sir Benfro [siːr ˈbɛnvrɔ] ) is a county in the south-west of Wales . It is bordered by Carmarthenshire to the east, Ceredigion to the northeast, and otherwise by the sea. Haverfordwest is the largest town and administrative headquarters of Pembrokeshire County Council . The county
360-431: A 100 kyr Milankovitch cycle , and so each cyclothem represents a cycle of sea level fall and rise over a 100 kyr period. Coal forms when organic matter builds up in waterlogged, anoxic swamps, known as peat mires, and is then buried, compressing the peat into coal. The majority of Earth's coal deposits were formed during the late Carboniferous and early Permian. The plants from which they formed contributed to changes in
540-441: A Welsh Language Scheme, which indicates its commitment to the equality of treatment principle. This is sent out in draft form for public consultation for a three-month period, whereupon comments on it may be incorporated into a final version. It requires the final approval of the now defunct Welsh Language Board ( Bwrdd yr Iaith Gymraeg ). Thereafter, the public body is charged with implementing and fulfilling its obligations under
720-594: A Welsh-language edge inscription was used on pound coins dated 1985, 1990 and 1995, which circulated in all parts of the UK prior to their 2017 withdrawal. The wording is Pleidiol wyf i'm gwlad (Welsh for 'True am I to my country'), and derives from the national anthem of Wales, " Hen Wlad Fy Nhadau ". UK banknotes are in English only. Some shops employ bilingual signage. Welsh sometimes appears on product packaging or instructions. The UK government has ratified
900-663: A census glossary of terms to support the release of results from the census, including their definition of "main language" as referring to "first or preferred language" (though that wording was not in the census questionnaire itself). The wards in England with the most people giving Welsh as their main language were the Liverpool wards of Central and Greenbank ; and Oswestry South in Shropshire . The wards of Oswestry South (1.15%), Oswestry East (0.86%) and St Oswald (0.71%) had
1080-486: A defined GSSP. The fusulinid Aljutovella aljutovica can be used to define the base of the Moscovian across the northern and eastern margins of Pangea, however, it is restricted in geographic area, which means it cannot be used for global correlations. The first appearance of the conodonts Declinognathodus donetzianus or Idiognathoides postsulcatus have been proposed as a boundary marking species and potential sites in
1260-725: A flourishing wool industry . There are still working woollen mills at Solva and Tregwynt . One of the last few watermills in Wales producing flour is in St Dogmaels . Pembrokeshire has good soil and benefits from the Gulf Stream , which provides a mild climate and a longer growing season than other parts of Wales. Pembrokeshire's mild climate means that crops such as its new potatoes (which have protected geographical status under European law) often arrive in British shops earlier in
1440-511: A petition was presented to the House of Commons concerning the poor state of many of the county's roads, pointing out that repairs could not be made compulsory by the law as it stood. The petition was referred to committee. People applying for poor relief were often put to work mending roads. Workhouses were poorly documented. Under the Poor Laws , costs and provisions were kept to a minimum, but
1620-475: A religious census of Pembrokeshire showed that of 70 per cent of the population, 53 per cent were nonconformists and 17 per cent Church of England (now Church in Wales , in the Diocese of St Davids ). The 2001 census for Preseli Pembrokeshire constituency showed that 74 per cent were Christian and 25 per cent of no religion (or not stated), with other religions totalling less than 1 per cent. This approximated to
1800-431: A shallow, tropical seaway which stretched from Southern California to Alaska. The boundary is within a cyclothem sequence of transgressive limestones and fine sandstones , and regressive mudstones and brecciated limestones. The Moscovian Stage is named after shallow marine limestones and colourful clays found around Moscow, Russia. It was first introduced by Sergei Nikitin in 1890. The Moscovian currently lacks
1980-479: A single discourse (known in linguistics as code-switching ). Welsh speakers are largely concentrated in the north and west of Wales, principally Gwynedd , Conwy County Borough , Denbighshire , Anglesey , Carmarthenshire , north Pembrokeshire , Ceredigion , parts of Glamorgan , and north-west and extreme south-west Powys . However, first-language and other fluent speakers can be found throughout Wales. Welsh-speaking communities persisted well into
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#17327648576262160-451: A single sedimentary cycle, with an erosional surface at its base. Whilst individual cyclothems are often only metres to a few tens of metres thick, cyclothem sequences can be many hundreds to thousands of metres thick and contain tens to hundreds of individual cyclothems. Cyclothems were deposited along continental shelves where the very gentle gradient of the shelves meant even small changes in sea level led to large advances or retreats of
2340-546: A six-day period. The Pembrokeshire coastline includes numerous bays and sandy beaches. The Pembrokeshire Coast National Park , the only park in the UK established primarily because of its coastline, occupies more than a third of the county. The park contains the Pembrokeshire Coast Path , a near-continuous 186-mile (299 km) long-distance trail from Amroth , by the Carmarthenshire border in
2520-648: A tropical wetland environment. Extensive coal deposits developed within the cyclothem sequences that dominated the Pennsylvanian sedimentary basins associated with the growing orogenic belt. Subduction of the Panthalassic oceanic plate along its western margin resulted in the Antler orogeny in the Late Devonian to Early Mississippian. Further north along the margin, slab roll-back , beginning in
2700-423: A variety of methods for reconstructing past atmospheric oxygen levels, including the charcoal record, halite gas inclusions, burial rates of organic carbon and pyrite , carbon isotopes of organic material, isotope mass balance and forward modelling. Depending on the preservation of source material, some techniques represent moments in time (e.g. halite gas inclusions), whilst others have a wider time range (e.g.
2880-750: A warmer climate. This rapid rise in CO 2 may have been due to a peak in pyroclastic volcanism and/or a reduction in burial of terrestrial organic matter. The LPIA peaked across the Carboniferous-Permian boundary. Widespread glacial deposits are found across South America, western and central Africa, Antarctica, Australia, Tasmania, the Arabian Peninsula, India, and the Cimmerian blocks, indicating trans-continental ice sheets across southern Gondwana that reached to sea-level. In response to
3060-669: A whole. There was considerable military activity in Pembrokeshire and offshore in the 20th century: a naval base at Milford Haven because German U-boats were active off the coast in World War I and, in World War II , military exercises in the Preseli Mountains and a number of military airfields. The wartime increase in air activity saw a number of aircraft accidents and fatalities, often due to unfamiliarity with
3240-511: Is Foel Cwmcerwyn at 1,759 feet (536 m), which is also the highest point in Pembrokeshire. Elsewhere in the county most of the land (86 per cent according to CORINE ) is used for farming, compared with 60 per cent for Wales as a whole. Pembrokeshire's wildlife is diverse, with marine, estuary, woodland, moorland and farmland habitats. The county has a number of seasonal seabird breeding sites, including for razorbill , guillemot , puffin and Manx shearwater , and rare endemic species such as
3420-547: Is "Good", the lowest rating. The rocks in the county were formed between 600 and 290 million years ago. More recent rock formations were eroded when sea levels rose 80 million years ago, at the end of the Cretaceous Period . Around 60 million years ago, the Pembrokeshire landmass emerged through a combination of uplift and falling sea levels; the youngest rocks, from the Carboniferous Period , contain
3600-559: Is 24 miles (39 km) long, of which only 2 miles (3.2 km) are dual carriageway. The Cleddau Bridge , toll-free from 28 March 2019, carries the A477 across the Cleddau Estuary . The A478 traverses eastern Pembrokeshire from Tenby in the south to Cardigan, Ceredigion in the north, a distance of 30 miles (48 km). The A487 is the other major route, running northwest from Haverfordwest to St Davids, then northeast following
3780-656: Is available throughout Europe on satellite and online throughout the UK. Since the digital switchover was completed in South Wales on 31 March 2010, S4C Digidol became the main broadcasting channel and fully in Welsh. The main evening television news provided by the BBC in Welsh is available for download. There is also a Welsh-language radio station, BBC Radio Cymru , which was launched in 1977. Carboniferous Period The name Carboniferous means " coal -bearing", from
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#17327648576263960-688: Is considered to have lasted from then until the 14th century, when the Modern Welsh period began, which in turn is divided into Early and Late Modern Welsh. The word Welsh is a descendant, via Old English wealh, wielisc , of the Proto-Germanic word * Walhaz , which was derived from the name of the Celtic people known to the Romans as Volcae and which came to refer to speakers of Celtic languages, and then indiscriminately to
4140-418: Is generally sparsely populated and rural, with an area of 610 square miles (1,600 km) and a population of 123,400. After Haverfordwest, the largest settlements are Milford Haven (13,907), Pembroke Dock (9,753), and Pembroke (7,552). St Davids (1,841) is a city, the smallest by population in the UK. Welsh is spoken by 17.2 percent of the population, and for historic reasons is more widely spoken in
4320-516: Is located in Bed 83 of the sequence of dark grey limestones and shales at the Pengchong section, Guangxi , southern China. It is defined by the first appearance of the fusulinid Eoparastaffella simplex in the evolutionary lineage Eoparastaffella ovalis – Eoparastaffella simplex and was ratified in 2009. The Serpukhovian Stage was proposed in 1890 by Russian stratigrapher Sergei Nikitin . It
4500-528: Is named after the Russian village of Gzhel , near Ramenskoye , not far from Moscow. The name and type locality were defined by Sergei Nikitin in 1890. The Gzhelian currently lacks a defined GSSP. The first appearance of the fusulinid Rauserites rossicus and Rauserites stuckenbergi can be used in the Boreal Sea and Paleo-Tethyan regions but not eastern Pangea or Panthalassa margins. Potential sites in
4680-438: Is named after the city of Serpukhov , near Moscow. currently lacks a defined GSSP. The Visean-Serpukhovian boundary coincides with a major period of glaciation. The resulting sea level fall and climatic changes led to the loss of connections between marine basins and endemism of marine fauna across the Russian margin. This means changes in biota are environmental rather than evolutionary making wider correlation difficult. Work
4860-877: Is native to the Welsh people . Welsh is spoken natively in Wales , by some in England , and in Y Wladfa (the Welsh colony in Chubut Province , Argentina ). It is spoken by smaller numbers of people in Canada and the United States descended from Welsh immigrants, within their households (especially in Nova Scotia ). Historically, it has also been known in English as "British", "Cambrian", "Cambric" and "Cymric". The Welsh Language (Wales) Measure 2011 gave
5040-512: Is not clear whether these belonged to Romans or to a Romanised population. Welsh tradition has it that Magnus Maximus founded Haverfordwest, and took a large force of local men on campaign in Gaul in 383 which, together with the reduction of Roman forces in south Wales, left a defensive vacuum which was filled by incomers from Ireland. Between 350 and 400, an Irish tribe known as the Déisi settled in
5220-558: Is now St Davids Head, but most Roman writers did not mention the area; there may have been a Roman settlement near St Davids and a road from Bath, but this comes from a 14th-century writer. Any evidence for villas or Roman building materials reported by mediaeval or later writers has not been verified, though some remains near Dale were tentatively identified as Roman in character by topographer Richard Fenton in his Historical Tour of 1810. Fenton stated that he had "...reason to be of opinion that they had not colonized Pembrokeshire till near
5400-401: Is one of the few places in the UK that is home to the rare Southern damselfly, Coenagrion mercuriale , which is found at several locations in the county, and whose numbers have been boosted by conservation work over a number of years. Ancient woodland still exists, such as Tŷ Canol Wood , where biofluorescence , seen under ultraviolet light under the dark sky, is a feature that has led to
5580-729: Is served by rail via the West Wales Lines from Swansea . Direct trains from Milford Haven run to Manchester Piccadilly . Branch lines terminate at Pembroke Dock , Milford Haven and Fishguard , linking with ferries to Ireland from Pembroke Dock and Fishguard. Seasonal ferry services operate from Tenby to Caldey Island, from St Justinians (St Davids) to Ramsey Island and Grassholm Island, and from Martin's Haven to Skomer Island. Haverfordwest (Withybush) Airport provides general aviation services. Pembrokeshire's economy now relies heavily on tourism; agriculture, once its most important industry with associated activities such as milling,
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5760-617: Is served by the Mid and West Wales Fire and Rescue Service and Dyfed-Powys Police . There are no motorways in Pembrokeshire; the nearest is the M4 motorway from London which terminates at the Pont Abraham services in Carmarthenshire some 46 miles (74 km) from Haverfordwest. The A40 crosses Pembrokeshire from the border with Carmarthenshire westwards to Haverfordwest, then northwards to Fishguard. The A477 from St. Clears to Pembroke Dock
5940-506: Is still significant. Mining of slate and coal had largely ceased by the 20th century. Since the 1950s, petrochemical and liquid natural gas industries have developed along the Milford Haven Waterway and the county has attracted other major ventures. In 2016, Stephen Crabb , then Welsh Secretary , commented in a government press release: "...with a buoyant local economy, Pembrokeshire is punching above its weight across
6120-631: Is that a delay between the development of trees with the wood fibre lignin and the subsequent evolution of lignin-degrading fungi gave a period of time where vast amounts of lignin-based organic material could accumulate. Genetic analysis of basidiomycete fungi, which have enzymes capable of breaking down lignin, supports this theory by suggesting this fungi evolved in the Permian. However, significant Mesozoic and Cenozoic coal deposits formed after lignin-digesting fungi had become well established, and fungal degradation of lignin may have already evolved by
6300-511: Is the label attached to the Welsh of the 12th to 14th centuries, of which much more remains than for any earlier period. This is the language of nearly all surviving early manuscripts of the Mabinogion , although the tales themselves are certainly much older. It is also the language of the existing Welsh law manuscripts. Middle Welsh is reasonably intelligible to a modern-day Welsh speaker. The Bible translations into Welsh helped maintain
6480-663: Is underway in the Urals and Nashui, Guizhou Province, southwestern China for a suitable site for the GSSP with the proposed definition for the base of the Serpukhovian as the first appearance of conodont Lochriea ziegleri . The Pennsylvanian was proposed by J.J.Stevenson in 1888, named after the widespread coal-rich strata found across the state of Pennsylvania. The closure of the Rheic Ocean and formation of Pangea during
6660-732: The Cynfeirdd or "Early Poets" – is generally considered to date to the Primitive Welsh period. However, much of this poetry was supposedly composed in the Hen Ogledd , raising further questions about the dating of the material and language in which it was originally composed. This discretion stems from the fact that Cumbric was widely believed to have been the language used in Hen Ogledd. An 8th-century inscription in Tywyn shows
6840-500: The 2016 Australian census , 1,688 people noted that they spoke Welsh. In the 2011 Canadian census , 3,885 people reported Welsh as their first language . According to the 2021 Canadian census , 1,130 people noted that Welsh was their mother tongue. The 2018 New Zealand census noted that 1,083 people in New Zealand spoke Welsh. The American Community Survey 2009–2013 noted that 2,235 people aged five years and over in
7020-466: The 2021 census , 7,349 people in England recorded Welsh to be their "main language". In the 2011 census, 1,189 people aged three and over in Scotland noted that Welsh was a language (other than English) that they used at home. It is believed that there are as many as 5,000 speakers of Patagonian Welsh . In response to the question 'Does the person speak a language other than English at home?' in
7200-538: The European Charter for Regional or Minority Languages in respect of Welsh. The language has greatly increased its prominence since the creation of the television channel S4C in November 1982, which until digital switchover in 2010 broadcast 70 per cent of Channel 4's programming along with a majority of Welsh language shows during peak viewing hours. The all-Welsh-language digital station S4C Digidol
7380-717: The Gulf of Mexico in the west to Turkey in the east. The orogeny was caused by a series of continental collisions between Laurussia, Gondwana and the Armorican Terrane Assemblage (much of modern-day Central and Western Europe including Iberia ) as the Rheic Ocean closed and Pangea formed. This mountain building process began in the Middle Devonian and continued into the early Permian. The Armorican terranes rifted away from Gondwana during
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7560-577: The Industrial Revolution the county remained relatively rural, with the exception of Milford Haven, which was developed as a port and Royal Navy dockyard . It is now the UK's third-largest port, primarily because of its two liquefied natural gas terminals. The economy of the county is now focused on agriculture, oil and gas, and tourism. The county town is Haverfordwest. Other towns include Pembroke, Pembroke Dock, Milford Haven, Fishguard , Tenby , Narberth , Neyland and Newport . In
7740-751: The International Commission on Stratigraphy (ICS) stage, but the Viséan is longer, extending into the lower Serpukhovian . North American geologists recognised a similar stratigraphy but divided it into two systems rather than one. These are the lower carbonate-rich sequence of the Mississippian System and the upper siliciclastic and coal-rich sequence of the Pennsylvanian . The United States Geological Survey officially recognised these two systems in 1953. In Russia, in
7920-677: The Kuznetsk Basin . The northwest to eastern margins of Siberia were passive margins along the Mongol-Okhotsk Ocean on the far side of which lay Amuria. From the mid Carboniferous, subduction zones with associated magmatic arcs developed along both margins of the ocean. The southwestern margin of Siberia was the site of a long lasting and complex accretionary orogen. The Devonian to early Carboniferous Siberian and South Chinese Altai accretionary complexes developed above an east-dipping subduction zone, whilst further south,
8100-622: The Latin carbō (" coal ") and ferō ("bear, carry"), and refers to the many coal beds formed globally during that time. The first of the modern "system" names, it was coined by geologists William Conybeare and William Phillips in 1822, based on a study of the British rock succession. Carboniferous is the period during which both terrestrial animal and land plant life was well established. Stegocephalia (four-limbed vertebrates including true tetrapods ), whose forerunners ( tetrapodomorphs ) had evolved from lobe-finned fish during
8280-586: The Magnitogorsk island arc , which lay between Kazakhstania and Laurussia in the Ural Ocean , collided with the passive margin of northeastern Laurussia ( Baltica craton ). The suture zone between the former island arc complex and the continental margin formed the Main Uralian Fault , a major structure that runs for more than 2,000 km along the orogen. Accretion of the island arc
8460-705: The Marcher Lords , such as Cemais in the north of the county. Henry Tudor, born at Pembroke Castle in 1457, landed an army in Pembrokeshire in 1485 and marched to Cardigan via Haverforwest. Rallying support, he continued to Leicestershire and defeated the larger army of Richard III at the Battle of Bosworth Field . As Henry VII , he became the first monarch of the House of Tudor , which ruled England until 1603. The Laws in Wales Act 1535 effectively abolished
8640-684: The Old Red Sandstone , Carboniferous Limestone , Millstone Grit and the Coal Measures . These four units were placed into a formalised Carboniferous unit by William Conybeare and William Phillips in 1822 and then into the Carboniferous System by Phillips in 1835. The Old Red Sandstone was later considered Devonian in age. The similarity in successions between the British Isles and Western Europe led to
8820-533: The Pembrokeshire Coalfield . The landscape was subject to considerable change as a result of ice ages; about 20,000 years ago the area was scraped clean of soil and vegetation by the ice sheet; subsequently, meltwater deepened the existing river valleys. While Pembrokeshire is not usually a seismically active area, in August 1892 there was a series of pronounced activities (maximum intensity: 7) over
9000-701: The Polish name for Italians) have a similar etymology. The Welsh term for the language, Cymraeg , descends from the Brythonic word combrogi , meaning 'compatriots' or 'fellow countrymen'. Welsh evolved from Common Brittonic , the Celtic language spoken by the ancient Celtic Britons . Classified as Insular Celtic , the British language probably arrived in Britain during the Bronze Age or Iron Age and
9180-450: The United States spoke Welsh at home. The highest number of those (255) lived in Florida . Sources: Calls for the Welsh language to be granted official status grew with the establishment of the nationalist political party Plaid Cymru in 1925, the establishment of the Welsh Language Society in 1962 and the rise of Welsh nationalism in the later 20th century. Of the six living Celtic languages (including two revived), Welsh has
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#17327648576269360-430: The red-billed chough ; Grassholm has a large gannet colony. Seals, several species of whales (including rare humpback whale sightings), dolphins and porpoises can be seen off the Pembrokeshire coast; whale-watching boat trips are frequent, particularly during the summer months. An appeal for otter sightings in 2014 yielded more than 100 responses, and a rare visit by a walrus occurred in the spring of 2021. Pembrokeshire
9540-404: The "hugely important role", adding, "I look forward to working with the Welsh Government and organisations in Wales in developing the new system of standards. I will look to build on the good work that has been done by the Welsh Language Board and others to strengthen the Welsh language and ensure that it continues to thrive." First Minister Carwyn Jones said that Huws would act as a champion for
9720-421: The 1840s British and Russian geologists divided the Carboniferous into the Lower, Middle and Upper series based on Russian sequences. In the 1890s these became the Dinantian, Moscovian and Uralian stages. The Serpukivian was proposed as part of the Lower Carboniferous, and the Upper Carboniferous was divided into the Moscovian and Gzhelian . The Bashkirian was added in 1934. In 1975, the ICS formally ratified
9900-532: The 1880s identified a small part of Shropshire as still then speaking Welsh, with the "Celtic Border" passing from Llanymynech through Oswestry to Chirk . The number of Welsh-speaking people in the rest of Britain has not yet been counted for statistical purposes. In 1993, the Welsh-language television channel S4C published the results of a survey into the numbers of people who spoke or understood Welsh, which estimated that there were around 133,000 Welsh-speaking people living in England, about 50,000 of them in
10080-451: The 190-mile (310 km) Pembrokeshire Coast Path . The interior of Pembrokeshire is relatively flat and gently undulating, with the exception of the Preseli Mountains in the north. There are many prehistoric sites in Pembrokeshire, particularly in the Preseli Mountains. During the Middle Ages several castles were built by the Normans, such as Pembroke and Cilgerran , and St David's Cathedral became an important pilgrimage site. During
10260-409: The 1993 Act nor secondary legislation made under it covers the private sector, although some organisations, notably banks and some railway companies, provide some of their information in Welsh. On 7 December 2010, the Welsh Assembly unanimously approved a set of measures to develop the use of the Welsh language within Wales. On 9 February 2011 this measure, the Welsh Language (Wales) Measure 2011 ,
10440-419: The 2018 heatwave; in the same year, a 1st-century Celtic chariot burial was discovered in Llanstadwell , the first such find in Wales. There may have been dairy farming in Neolithic times. There is little evidence of Roman occupation in what is now Pembrokeshire. Ptolemy 's Geography , written c. 150 , mentioned some coastal places, two of which have been identified as the River Teifi and what
10620-430: The Assembly which confirms the official status of the Welsh language; which creates a strong advocate for Welsh speakers and will improve the quality and quantity of services available through the medium of Welsh. I believe that everyone who wants to access services in the Welsh language should be able to do so, and that is what this government has worked towards. This legislation is an important and historic step forward for
10800-467: The Bashkirian, the late Moscovian and the latest Kasimovian to mid-Gzhelian are inferred from the disappearance of glacial sediments, the appearance of deglaciation deposits and rises in sea levels. In the early Kasimovian there was short-lived (<1 million years) intense period of glaciation, with atmospheric CO 2 concentration levels dropping as low as 180 ppm. This ended suddenly as a rapid increase in CO 2 concentrations to c. 600 ppm resulted in
10980-434: The Carboniferous Earth's atmosphere, and the coal fueled the Industrial Revolution . During the Pennsylvanian, vast amounts of organic debris accumulated in the peat mires that formed across the low-lying, humid equatorial wetlands of the foreland basins of the Central Pangean Mountains in Laurussia, and around the margins of the North and South China cratons. During glacial periods, low sea levels exposed large areas of
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#173276485762611160-415: The Carboniferous System, with the Mississippian and Pennsylvanian subsystems from the North American timescale, the Tournaisian and Visean stages from the Western European and the Serpukhovian, Bashkirian, Moscovian, Kasimovian and Gzhelian from the Russian. With the formal ratification of the Carboniferous System, the Dinantian, Silesian, Namurian, Westphalian and Stephanian became redundant terms, although
11340-429: The Carboniferous, the Tarim craton lay along the northwestern edge of North China. Subduction along the Kazakhstanian margin of the Turkestan Ocean resulted in collision between northern Tarim and Kazakhstania during the mid Carboniferous as the ocean closed. The South Tian Shan fold and thrust belt , which extends over 2,000 km from Uzbekistan to northwest China, is the remains of this accretionary complex and forms
11520-438: The Early Mississippian, led to the rifting of the Yukon-Tanana terrane and the opening of the Slide Mountain Ocean . Along the northern margin of Laurussia, orogenic collapse of the Late Devonian to Early Mississippian Innuitian orogeny led to the development of the Sverdrup Basin . Much of Gondwana lay in the southern polar region during the Carboniferous. As the plate moved, the South Pole drifted from southern Africa in
11700-461: The Early to Middle Mississippian, carbonate production occurred to depth across the gently dipping continental slopes of Laurussia and North and South China ( carbonate ramp architecture) and evaporites formed around the coastal regions of Laurussia, Kazakhstania, and northern Gondwana. From the late Visean, the cooling climate restricted carbonate production to depths of less than c. 10 m forming carbonate shelves with flat-tops and steep sides. By
11880-483: The Eastern Cleddau, and rivers Cresswell and Carew. Since 1975, the estuary has been bridged by the Cleddau Bridge , a toll bridge carrying the A477 between Neyland and Pembroke Dock. Large bays are Newport Bay, Fishguard Bay, St Bride's Bay and western Carmarthen Bay . There are several small islands off the Pembrokeshire coast, the largest of which are Ramsey , Grassholm , Skokholm , Skomer and Caldey . The seas around Skomer and Skokholm, and some other areas off
12060-434: The Greater London area. The Welsh Language Board , on the basis of an analysis of the Office for National Statistics Longitudinal Study, estimated there were 110,000 Welsh-speaking people in England, and another thousand in Scotland and Northern Ireland. In the 2011 census , 8,248 people in England gave Welsh in answer to the question "What is your main language?" The Office for National Statistics subsequently published
12240-432: The Kasimovian covers a period of globally low sea level, which has resulted in disconformities within many sequences of this age. This has created difficulties in finding suitable marine fauna that can used to correlate boundaries worldwide. The Kasimovian currently lacks a defined GSSP; potential sites in the southern Urals, southwest USA and Nashui, Guizhou Province, southwestern China are being considered. The Gzhelian
12420-418: The Late Ordovician . As they drifted northwards the Rheic Ocean closed in front of them, and they began to collide with southeastern Laurussia in the Middle Devonian. The resulting Variscan orogeny involved a complex series of oblique collisions with associated metamorphism , igneous activity, and large-scale deformation between these terranes and Laurussia, which continued into the Carboniferous. During
12600-401: The Late Pennsylvanian, deformation along the Alleghanian orogen became northwesterly-directed compression . The Uralian orogeny is a north–south trending fold and thrust belt that forms the western edge of the Central Asian Orogenic Belt . The Uralian orogeny began in the Late Devonian and continued, with some hiatuses, into the Jurassic . From the Late Devonian to early Carboniferous,
12780-452: The Norman castle built in the cantref of Penfro . In 1136, Prince Owain Gwynedd at Crug Mawr near Cardigan met and destroyed a 3,000-strong Norman/Flemish army and incorporated Deheubarth into Gwynedd. Norman/Flemish influence never fully recovered in West Wales. In 1138, the county of Pembrokeshire was named as a county palatine . Rhys ap Gruffydd , the son of Owain Gwynedd's daughter Gwenllian , re-established Welsh control over much of
12960-637: The Paleo-Tethys to the southwest and Panthalassa to the northeast. Cyclothem sediments with coal and evaporites were deposited across the passive margins that surrounded both continents. The Carboniferous climate was dominated by the Late Paleozoic Ice Age (LPIA), the most extensive and longest icehouse period of the Phanerozoic, which lasted from the Late Devonian to the Permian (365 Ma-253 Ma). Temperatures began to drop during
13140-459: The Pembrokeshire coast are Marine protected areas . There are many known shipwrecks off the Pembrokeshire coast with many more undiscovered. A Viking wreck off The Smalls has protected status. The county has six lifeboat stations , the earliest of which was established in 1822; in 2015 a quarter of all Royal National Lifeboat Institution Welsh rescues took place off the Pembrokeshire coast. Pembrokeshire's diverse range of geological features
13320-463: The Pennsylvanian, cyclothems were deposited in shallow, epicontinental seas across the tropical regions of Laurussia (present day western and central US, Europe, Russia and central Asia) and the North and South China cratons . The rapid sea levels fluctuations they represent correlate with the glacial cycles of the Late Paleozoic Ice Age. The advance and retreat of ice sheets across Gondwana followed
13500-465: The Pennsylvanian, together with widespread glaciation across Gondwana led to major climate and sea level changes, which restricted marine fauna to particular geographic areas thereby reducing widespread biostratigraphic correlations. Extensive volcanic events associated with the assembling of Pangea means more radiometric dating is possible relative to the Mississippian. The Bashkirian Stage
13680-542: The Period. This was not a steady rise, but included peaks and troughs reflecting the dynamic climate conditions of the time. How the atmospheric oxygen concentrations influenced the large body size of arthropods and other fauna and flora during the Carboniferous is also a subject of ongoing debate. The changing climate was reflected in regional-scale changes in sedimentation patterns. In the relatively warm waters of
13860-485: The Permian. The Kazakhstanian microcontinent is composed of a series of Devonian and older accretionary complexes. It was strongly deformed during the Carboniferous as its western margin collided with Laurussia during the Uralian orogen and its northeastern margin collided with Siberia. Continuing strike-slip motion between Laurussia and Siberia led the formerly elongate microcontinent to bend into an orocline . During
14040-457: The Roman and Norman periods, the region was subjected to raids from Vikings , who established settlements and trading posts at Haverfordwest, Fishguard, Caldey Island and elsewhere. Dyfed remained an integral province of Deheubarth, but this was contested by invading Normans and Flemings who arrived between 1067 and 1111. The region became known as Pembroke (sometimes archaic "Penbroke"), after
14220-577: The Senedd (MSs) returned to the Senedd (Welsh Parliament) in Cardiff are Paul Davies and Samuel Kurtz respectively, both Conservatives. From 2024, Pembrokeshire was represented by the new UK Parliament constituencies Ceredigion Preseli and Mid and South Pembrokeshire which, in the 2024 General Election , returned Ben Lake ( Plaid Cymru ) and Henry Tufnell ( Labour ) respectively. Pembrokeshire
14400-662: The UK. In 2021, 52.7 per cent of residents identified as "Welsh only", a slight decrease since 2011. Under the Local Government Act 1888 , an elected county council was set up to take over the functions of the Pembrokeshire Quarter Sessions . It was based at the Shire Hall, Haverfordwest . This and the administrative county of Pembrokeshire were abolished under the Local Government Act 1972 , with Pembrokeshire forming two districts of
14580-500: The UK." In August 2019, the Pembrokeshire County Show celebrated 60 years at Haverfordwest Showground. The organisers anticipated 100,000 visitors, the largest three-day such event in Wales at the time. It showcased agriculture, food and drink, a rugby club, entertainment, with the star attraction a motorcycle display team. Until the 12th century, a great extent of Pembrokeshire was virgin woodland. Clearance in
14760-555: The Urals and Nashui, Guizhou Province, southwestern China are being considered. The Kasimovian is the first stage in the Upper Pennsylvanian. It is named after the Russian city of Kasimov , and was originally included as part of Nikitin's 1890 definition of the Moscovian. It was first recognised as a distinct unit by A.P. Ivanov in 1926, who named it the " Tiguliferina " Horizon after a type of brachiopod . The boundary of
14940-498: The Urals and Nashui, Guizhou Province, southwestern China for the GSSP are being considered. The GSSP for the base of the Permian is located in the Aidaralash River valley near Aqtöbe , Kazakhstan and was ratified in 1996. The beginning of the stage is defined by the first appearance of the conodont Streptognathodus postfusus . A cyclothem is a succession of non-marine and marine sedimentary rocks , deposited during
15120-467: The Visean of c. 15.3%, although with large uncertainties; and, pyrite records suggest levels of c. 15% early in the Carboniferous, to over 25% during the Pennsylvanian, before dropping back below 20% towards the end. However, whilst exact numbers vary, all models show an overall increase in atmospheric oxygen levels from a low of between 15-20% at the beginning of the Carboniferous to highs of 25-30% during
15300-496: The Welsh Language (Wales) Measure 2011, all new signs have Welsh displayed first. There have been incidents of one of the languages being vandalised, which may be considered a hate crime . Since 2000, the teaching of Welsh has been compulsory in all schools in Wales up to age 16; this has had an effect in stabilising and reversing the decline in the language. Text on UK coins tends to be in English and Latin. However,
15480-704: The Welsh Language Scheme. The list of other public bodies which have to prepare Schemes could be added to by initially the Secretary of State for Wales, from 1993 to 1997, by way of statutory instrument . Subsequent to the forming of the National Assembly for Wales in 1997, the Government Minister responsible for the Welsh language can and has passed statutory instruments naming public bodies who have to prepare Schemes. Neither
15660-615: The Welsh language official status in Wales. Welsh and English are de jure official languages of the Welsh Parliament, the Senedd , with Welsh being the only de jure official language in any part of the United Kingdom, with English being merely de facto official. According to the 2021 census , the Welsh-speaking population of Wales aged three or older was 538,300 (17.8%) and nearly three quarters of
15840-598: The Welsh language, though some had concerns over her appointment: Plaid Cymru spokeswoman Bethan Jenkins said, "I have concerns about the transition from Meri Huws's role from the Welsh Language Board to the language commissioner, and I will be asking the Welsh government how this will be successfully managed. We must be sure that there is no conflict of interest, and that the Welsh Language Commissioner can demonstrate how she will offer
16020-487: The Welsh of the 16th century, but they are similar enough for a fluent Welsh speaker to have little trouble understanding it. During the Modern Welsh period, there has been a decline in the popularity of the Welsh language: the number of Welsh speakers declined to the point at which there was concern that the language would become extinct. During industrialisation in the late 19th century, immigrants from England led to
16200-682: The Welsh-speaking heartlands, with the number dropping to under 50 per cent in Ceredigion and Carmarthenshire for the first time. However, according to the Welsh Language Use Survey in 2019–20, 22 per cent of people aged three and over were able to speak Welsh. The Annual Population Survey (APS) by the Office for National Statistics (ONS) estimated that as of March 2024, approximately 862,700, or 28.0 per cent of
16380-522: The Zharma-Saur arc formed along the northeastern margin of Kazakhstania. By the late Carboniferous, all these complexes had accreted to the Siberian craton as shown by the intrusion of post-orogenic granites across the region. As Kazakhstania had already accreted to Laurussia, Siberia was effectively part of Pangea by 310 Ma, although major strike-slip movements continued between it and Laurussia into
16560-448: The area of the county was calculated to be 345,600 acres (1,399 km) with a population of 81,424. It was not until nearly the end of the 19th century that mains water was provided to rural south Pembrokeshire by means of a reservoir at Rosebush and cast iron water pipes throughout the district. Throughout much of the 20th century (1911 to 1961) the population density in the county remained stable while it rose in England and Wales as
16740-668: The average temperature in the tropics c. 24 °C (75 °F) and in polar regions c. -23 °C (-10 °F), whilst during the Early Tournaisian Warm Interval (358-353 Ma) the GAT was c. 22 °C (72 °F), the tropics c. 30 °C (86 °F) and polar regions c. 1.5 °C (35 °F). Overall, for the Ice Age the GAT was c. 17 °C (62 °F), with tropical temperatures c. 26 °C and polar temperatures c. -9.0 °C (16 °F). There are
16920-577: The base of the Carboniferous System, Mississippian Subsystem and Tournaisian Stage is located at the La Serre section in Montagne Noire , southern France. It is defined by the first appearance of the conodont Siphonodella sulcata within the evolutionary lineage from Siphonodella praesulcata to Siphonodella sulcata . This was ratified by the ICS in 1990. However, in 2006 further study revealed
17100-433: The beginning of the Period to highs of 25-30%. The development of a Carboniferous chronostratigraphic timescale began in the late 18th century. The term "Carboniferous" was first used as an adjective by Irish geologist Richard Kirwan in 1799 and later used in a heading entitled "Coal-measures or Carboniferous Strata" by John Farey Sr. in 1811. Four units were originally ascribed to the Carboniferous, in ascending order,
17280-460: The census. In terms of usage, ONS also reported that 14.4 per cent (443,800) of people aged three or older in Wales reported that they spoke Welsh daily in March 2024, with 5.4 per cent (165,500) speaking it weekly and 6.5 per cent (201,200) less often. Approximately 1.7 per cent (51,700) reported that they never spoke Welsh despite being able to speak the language, with the remaining 72.0 per cent of
17460-410: The charcoal record and pyrite). Results from these different methods for the Carboniferous vary. For example: the increasing occurrence of charcoal produced by wildfires from the Late Devonian into the Carboniferous indicates increasing oxygen levels, with calculations showing oxygen levels above 21% for most of the Carboniferous; halite gas inclusions from sediments dated 337-335 Ma give estimates for
17640-579: The city of Visé , Liège Province , Belgium. In 1967, the base of the Visean was officially defined as the first black limestone in the Leffe facies at the Bastion Section in the Dinant Basin . These changes are now thought to be ecologically driven rather than caused by evolutionary change, and so this has not been used as the location for the GSSP. Instead, the GSSP for the base of the Visean
17820-793: The coast, through Fishguard and Newport, to the boundary with Ceredigion at Cardigan. Owing to length restrictions in Fishguard, some freight vehicles are not permitted to travel northeast from Fishguard but must take a longer route via Haverfordwest and Narberth. The B4329 former turnpike runs from Eglwyswrw in the north to Haverfordwest across the Preselis. The main towns in the county are covered by regular bus and train services operated by First Cymru (under their "Western Welsh" livery), Transport for Wales Rail and sometimes Great Western Railway respectively, and many villages by local bus services, or community or education transport. Pembrokeshire
18000-486: The coast. Milford Haven enjoys a mild climate and Tenby shows a similar range of temperatures throughout the year, while at Penycwm, on the west coast and 100m above sea level, temperatures are slightly lower. The county has on average the highest coastal winter temperatures in Wales due to its proximity to the relatively warm Atlantic Ocean. Inland, average temperatures tend to fall 0.5 °C for each 100 metres increase in height. The air pollution rating of Pembrokeshire
18180-471: The complexity of the geology. The ICS subdivisions from youngest to oldest are as follows: The Mississippian was proposed by Alexander Winchell in 1870 named after the extensive exposure of lower Carboniferous limestone in the upper Mississippi River valley. During the Mississippian, there was a marine connection between the Paleo-Tethys and Panthalassa through the Rheic Ocean resulting in
18360-437: The continental shelves. Major river channels, up to several kilometres wide, stretched across these shelves feeding a network of smaller channels, lakes and peat mires. These wetlands were then buried by sediment as sea levels rose during interglacials . Continued crustal subsidence of the foreland basins and continental margins allowed this accumulation and burial of peat deposits to continue over millions of years resulting in
18540-580: The county through an opening up of rural industries, including agriculture, mining and fishing, with exports to England and Ireland, though the formerly staple woollen industry had all but disappeared. During the First English Civil War (1642–1646) the county gave strong support to the Roundheads (Parliamentarians), in contrast to the rest of Wales, which was staunchly Royalist . In spite of this, an incident in Pembrokeshire triggered
18720-414: The course of the 20th century this monolingual population all but disappeared, but a small percentage remained at the time of the 1981 census. Most Welsh-speaking people in Wales also speak English. However, many Welsh-speaking people are more comfortable expressing themselves in Welsh than in English. A speaker's choice of language can vary according to the subject domain and the social context, even within
18900-489: The creation of Old Welsh, Davies suggests it may be more appropriate to refer to this derivative language as Lingua Britannica rather than characterising it as a new language altogether. The argued dates for the period of "Primitive Welsh" are widely debated, with some historians' suggestions differing by hundreds of years. The next main period is Old Welsh ( Hen Gymraeg , 9th to 11th centuries); poetry from both Wales and Scotland has been preserved in this form of
19080-479: The decline in Welsh speakers particularly in the South Wales Valleys. Welsh government processes and legislation have worked to increase the proliferation of the Welsh language, for example through education. Welsh has been spoken continuously in Wales throughout history; however, by 1911, it had become a minority language, spoken by 43.5 per cent of the population. While this decline continued over
19260-509: The decline of their empire in Britain". Part of a possible Roman road is noted by CADW near Llanddewi Velfrey , and another near Wiston . Wiston is also the location of the first Roman fort discovered in Pembrokeshire, investigated in 2013. A find in north Pembrokeshire in 2024 of the likely remains of a Roman fort adds to the extent of Roman military presence in the area. Some artefacts, including coins and weapons, have been found, but it
19440-521: The development of a common European timescale with the Carboniferous System divided into the lower Dinantian , dominated by carbonate deposition and the upper Silesian with mainly siliciclastic deposition. The Dinantian was divided into the Tournaisian and Viséan stages. The Silesian was divided into the Namurian , Westphalian and Stephanian stages. The Tournaisian is the same length as
19620-475: The early Carboniferous Kanimblan Orogeny . Continental arc magmatism continued into the late Carboniferous and extended round to connect with the developing proto-Andean subduction zone along the western South American margin of Gondwana. Shallow seas covered much of the Siberian craton in the early Carboniferous. These retreated as sea levels fell in the Pennsylvanian and as the continent drifted north into more temperate zones extensive coal deposits formed in
19800-599: The early Carboniferous in North China. However, bauxite deposits immediately above the regional mid Carboniferous unconformity indicate warm tropical conditions and are overlain by cyclothems including extensive coals. South China and Annamia (Southeast Asia) rifted from Gondwana during the Devonian. During the Carboniferous, they were separated from each other and North China by the Paleoasian Ocean with
19980-571: The early Carboniferous to eastern Antarctica by the end of the period. Glacial deposits are widespread across Gondwana and indicate multiple ice centres and long-distance movement of ice. The northern to northeastern margin of Gondwana (northeast Africa, Arabia, India and northeastern West Australia) was a passive margin along the southern edge of the Paleo-Tethys with cyclothem deposition including, during more temperate intervals, coal swamps in Western Australia. The Mexican terranes along
20160-483: The emphasis was often on helping people to be self-employed. While the Poor Laws provided a significant means of support, there were many charitable and benefit societies. After the Battle of Fishguard , the failed French invasion of 1797, 500 French prisoners were held at Golden Hill Farm, Pembroke. From 1820 to 1878 one of the county's prisons, with a capacity of 86, was in the grounds of Haverfordwest Castle. In 1831,
20340-539: The end of the Carboniferous, extension and rifting across the northern margin of Gondwana led to the breaking away of the Cimmerian Terrane during the early Permian and the opening of the Neo-Tethys Ocean . Along the southeastern and southern margin of Gondwana (eastern Australia and Antarctica), northward subduction of Panthalassa continued. Changes in the relative motion of the plates resulted in
20520-455: The end of the Devonian, even if the specific enzymes used by basidiomycetes had not. The second theory is that the geographical setting and climate of the Carboniferous were unique in Earth's history: the co-occurrence of the position of the continents across the humid equatorial zone, high biological productivity, and the low-lying, water-logged and slowly subsiding sedimentary basins that allowed
20700-495: The figures for the whole of Wales. By 2021, 43 per cent reported "no religion", while 48.8 per cent described themselves as Christian. 6.6 per cent did not state their religion, and the remainder represented a number of other religions combined. In 2001, Preseli Pembrokeshire constituency was 99 per cent white European, marginally lower than in 1991, compared with 98 per cent for the whole of Wales. 71 per cent identified their place of birth as Wales and 26 per cent as from elsewhere in
20880-491: The following decades, the language did not die out. The smallest number of speakers was recorded in 1981 with 503,000 although the lowest percentage was recorded in the most recent census in 2021 at 17.8 per cent. By the start of the 21st century, numbers began to increase once more, at least partly as a result of the increase in Welsh-medium education . The 2004 Welsh Language Use Survey showed that 21.7 per cent of
21060-480: The formation of thick and widespread coal formations. During the warm interglacials, smaller coal swamps with plants adapted to the temperate conditions formed on the Siberian craton and the western Australian region of Gondwana. There is ongoing debate as to why this peak in the formation of Earth's coal deposits occurred during the Carboniferous. The first theory, known as the delayed fungal evolution hypothesis,
21240-469: The highest number of native speakers who use the language on a daily basis, and it is the Celtic language which is considered the least endangered by UNESCO . The Welsh Language Act 1993 and the Government of Wales Act 1998 provide that the Welsh and English languages be treated equally in the public sector, as far as is reasonable and practicable. Each public body is required to prepare for approval
21420-476: The highest percentage of residents giving Welsh as their main language. The census also revealed that 3,528 wards in England, or 46% of the total number, contained at least one resident whose main language is Welsh. In terms of the regions of England , North West England (1,945), London (1,310) and the West Midlands (1,265) had the highest number of people noting Welsh as their main language. According to
21600-456: The history of Welsh, with rather indistinct boundaries: Primitive Welsh, Old Welsh, Middle Welsh, and Modern Welsh. The period immediately following the language's emergence is sometimes referred to as Primitive Welsh, followed by the Old Welsh period – which is generally considered to stretch from the beginning of the 9th century to sometime during the 12th century. The Middle Welsh period
21780-723: The land was arable or rough pasture in a ratio of about 1:3. Kelly's Directory of 1910 gave a snapshot of the agriculture of Pembrokeshire: 57,343 acres (23,206 ha) were cropped (almost half under oats and a quarter barley), there were 37,535 acres (15,190 ha) of grass and clover and 213,387 acres (86,355 ha) of permanent pasture (of which a third was for hay). There were 128,865 acres (52,150 ha) of mountain or heathland used for grazing, with 10,000 acres (4,000 ha) of managed or unmanaged woodland. Estimates of livestock included 17,810 horses, 92,386 cattle, 157,973 sheep and 31,673 pigs. Of 5,981 agricultural holdings, more than half were between 5 and 50 acres. Pembrokeshire had
21960-595: The language already dropping inflections in the declension of nouns. Janet Davies proposed that the origins of the Welsh language were much less definite; in The Welsh Language: A History , she proposes that Welsh may have been around even earlier than 600 AD. This is evidenced by the dropping of final syllables from Brittonic: * bardos 'poet' became bardd , and * abona 'river' became afon . Though both Davies and Jackson cite minor changes in syllable structure and sounds as evidence for
22140-562: The language, its speakers and for the nation." The measure was not welcomed warmly by all supporters: Bethan Williams, chairman of the Welsh Language Society, gave a mixed response to the move, saying, "Through this measure we have won official status for the language and that has been warmly welcomed. But there was a core principle missing in the law passed by the Assembly before Christmas. It doesn't give language rights to
22320-555: The language. As Germanic and Gaelic colonisation of Britain proceeded, the Brittonic speakers in Wales were split off from those in northern England, speaking Cumbric, and those in the southwest, speaking what would become Cornish , so the languages diverged. Both the works of Aneirin ( Canu Aneirin , c. 600 ) and the Book of Taliesin ( Canu Taliesin ) were written during this era. Middle Welsh ( Cymraeg Canol )
22500-456: The late Carboniferous. Land arthropods such as arachnids (e.g. trigonotarbids and Pulmonoscorpius ), myriapods (e.g. Arthropleura ) and especially insects (particularly flying insects ) also underwent a major evolutionary radiation during the late Carboniferous. Vast swaths of forests and swamps covered the land, which eventually became the coal beds characteristic of the Carboniferous stratigraphy evident today. The later half of
22680-505: The late Devonian with a short-lived glaciation in the late Famennian through Devonian–Carboniferous boundary, before the Early Tournaisian Warm Interval. Following this, a reduction in atmospheric CO 2 levels, caused by the increased burial of organic matter and widespread ocean anoxia led to climate cooling and glaciation across the south polar region. During the Visean Warm Interval glaciers nearly vanished retreating to
22860-533: The latter three are still in common use in Western Europe. Stages can be defined globally or regionally. For global stratigraphic correlation, the ICS ratify global stages based on a Global Boundary Stratotype Section and Point (GSSP) from a single formation (a stratotype ) identifying the lower boundary of the stage. Only the boundaries of the Carboniferous System and three of the stage bases are defined by global stratotype sections and points because of
23040-407: The line has been termed " Little England Beyond Wales ". The first objective, statistically based description of this demarcation was made in the 1960s, but the distinction was remarked upon as early as 1603 by George Owen of Henllys . A 21st century introduction of Welsh place names for villages which had previously been known locally only by their English names has caused some controversy. In 1851,
23220-434: The lowland south began under Anglo-Flemish colonisation and under mediaeval tenancies in other areas. Such was the extent of development that by the 16th century there was a shortage of timber in the county. Little is known about mediaeval farming methods, but much arable land was continuously cropped and only occasionally ploughed. By the 18th century, many of the centuries-old open field systems had been enclosed , and much of
23400-432: The majority of a cyclothem sequence occurred during falling sea levels, when rates of erosion were high, meaning they were often periods of non-deposition. Erosion during sea level falls could also result in the full or partial removal of previous cyclothem sequences. Individual cyclothems are generally less than 10 m thick because the speed at which sea level rose gave only limited time for sediments to accumulate. During
23580-743: The mid Carboniferous, the South American sector of Gondwana collided obliquely with Laurussia's southern margin resulting in the Ouachita orogeny. The major strike-slip faulting that occurred between Laurussia and Gondwana extended eastwards into the Appalachian Mountains where early deformation in the Alleghanian orogeny was predominantly strike-slip. As the West African sector of Gondwana collided with Laurussia during
23760-622: The modern period across the border in England. Archenfield was still Welsh enough in the time of Elizabeth I for the Bishop of Hereford to be made responsible, together with the four Welsh bishops, for the translation of the Bible and the Book of Common Prayer into Welsh. Welsh was still commonly spoken there in the first half of the 19th century, and churchwardens' notices were put up in both Welsh and English until about 1860. Alexander John Ellis in
23940-533: The most recent arrangement of communities (the successors to civil parishes) in the county which have their own councils; see the foot of this page for a list of communities. From 2010 to 2024, Pembrokeshire returned two Conservative MPs to the Parliament of the United Kingdom at Westminster: Stephen Crabb for Preseli Pembrokeshire and Simon Hart for South Pembrokeshire which is represented jointly with West Carmarthenshire. The corresponding Members of
24120-473: The names of 1,200 of those that perished in World War I. In 1972, a second reservoir for south Pembrokeshire, at Llys y Fran , was completed. Pembrokeshire's population was 122,439 at the 2011 census, increasing marginally to 123,400 at the 2021 census. 66.4 per cent of residents were born in Wales, while 27.5 per cent were born in England. The 2021 census recorded that Welsh is spoken by 17.2 per cent of
24300-456: The near worldwide distribution of marine faunas and so allowing widespread correlations using marine biostratigraphy . However, there are few Mississippian volcanic rocks , and so obtaining radiometric dates is difficult. The Tournaisian Stage is named after the Belgian city of Tournai . It was introduced in scientific literature by Belgian geologist André Dumont in 1832. The GSSP for
24480-493: The new county of Dyfed : South Pembrokeshire and Preseli – the split being made at the request of local authorities in the area. Under the same Act, civil parishes were replaced by communities across the whole of Wales. In 1996, under the Local Government (Wales) Act 1994 , the county of Dyfed was broken up into its constituent parts, and Pembrokeshire has been a unitary authority since then. A new County Hall
24660-421: The north of the county than in the south. Pembrokeshire's coast is its most dramatic geographic feature, created by the complex geology of the area. It is a varied landscape which includes high sea cliffs, wide sandy beaches, the large natural harbour of Milford Haven, and several offshore islands which are home to seabird colonies. Most of it is protected by Pembrokeshire Coast National Park , and can be hiked on
24840-515: The northwestern Gondwana margin, were affected by the subduction of the Rheic Ocean. However, they lay to west of the Ouachita orogeny and were not impacted by continental collision but became part of the active margin of the Pacific. The Moroccan margin was affected by periods of widespread dextral strike-slip deformation, magmatism and metamorphism associated with the Variscan orogeny. Towards
25020-448: The number of Welsh-language speakers to one million by 2050. Since 1980, the number of children attending Welsh-medium schools has increased, while the number going to Welsh bilingual and dual-medium schools has decreased. Welsh is considered the least endangered Celtic language by UNESCO . The language of the Welsh developed from the language of Britons . The emergence of Welsh was not instantaneous and clearly identifiable. Instead,
25200-770: The opening shots of the Second English Civil War when local units of the New Model Army mutinied. Oliver Cromwell defeated the uprising at the Siege of Pembroke in July 1648. On 13 August 1649, the Cromwellian conquest of Ireland began when New Model Army forces sailed from Milford Haven. In 1720, Emmanuel Bowen described Pembrokeshire as having five market towns, 45 parishes and about 4,329 houses, with an area of 420,000 acres (1,700 km). In 1791
25380-426: The peat mires. As fully marine conditions were established, limestones succeeded these marginal marine deposits. The limestones were in turn overlain by deep water black shales as maximum sea levels were reached. Ideally, this sequence would be reversed as sea levels began to fall again; however, sea level falls tend to be protracted, whilst sea level rises are rapid, ice sheets grow slowly but melt quickly. Therefore,
25560-473: The people of Wales in every aspect of their lives. Despite that, an amendment to that effect was supported by 18 Assembly Members from three different parties, and that was a significant step forward." On 5 October 2011, Meri Huws , Chair of the Welsh Language Board , was appointed the new Welsh Language Commissioner. She released a statement that she was "delighted" to have been appointed to
25740-551: The people of the Western Roman Empire . In Old English the term went through semantic narrowing , coming to refer to either Britons in particular or, in some contexts, slaves. The plural form Wēalas evolved into the name for their territory, Wales. The modern names for various Romance-speaking people in Continental Europe (e.g. Walloons , Valaisans , Vlachs / Wallachians , and Włosi ,
25920-516: The period experienced glaciations , low sea level, and mountain building as the continents collided to form Pangaea . A minor marine and terrestrial extinction event, the Carboniferous rainforest collapse , occurred at the end of the period, caused by climate change. Atmospheric oxygen levels, originally thought to be consistently higher than today throughout the Carboniferous, have been shown to be more variable, increasing from low levels at
26100-436: The population in Wales said they had no Welsh language skills. Other estimates suggest that 862,700 people (28.0%) aged three or older in Wales could speak Welsh in March 2024. Almost half of all Welsh speakers consider themselves fluent, while 20 per cent are able to speak a fair amount. 56 per cent of Welsh speakers speak the language daily, and 19 per cent speak the language weekly. The Welsh Government plans to increase
26280-471: The population not being able to speak it. The National Survey for Wales, conducted by Welsh Government, has also tended to report a higher percentage of Welsh speakers than the census, with the most recent results for 2022–2023 suggesting that 18 per cent of the population aged 3 and over were able to speak Welsh, with an additional 16 per cent noting that they had some Welsh-speaking ability. Historically, large numbers of Welsh people spoke only Welsh. Over
26460-502: The population of Wales aged 3 and over, were able to speak the language. Children and young people aged three to 15 years old were more likely to report that they could speak Welsh than any other age group (48.4 per cent, 241,300). Around 1,001,500 people, or 32.5 per cent, reported that they could understand spoken Welsh. 24.7 per cent (759,200) could read and 22.2 per cent (684,500) could write in Welsh. The APS estimates of Welsh language ability are historically higher than those produced by
26640-407: The population of Wales spoke Welsh, compared with 20.8 per cent in the 2001 census , and 18.5 per cent in the 1991 census . Since 2001, however, the number of Welsh speakers has declined in both the 2011 and 2021 censuses to about 538,300 or 17.8 per cent in 2021, lower than 1991, although it is still higher in absolute terms. The 2011 census also showed a "big drop" in the number of speakers in
26820-468: The population, a fall from 19.2 per cent in 2011. As a result of differential immigration over hundreds of years, such as the influx of Flemish people, the south of the county has fewer Welsh-speaking inhabitants (about 15 per cent) than the north (about 50 per cent). The rough line that can be drawn between the two regions, illustrated by the map, is known as the Landsker Line , and the area south of
27000-522: The powers of the Marcher Lords and divided the county into seven hundreds , roughly corresponding to the seven pre-Norman cantrefi of Dyfed. The hundreds were (clockwise from the northeast): Cilgerran , Cemais , Dewisland , Roose , Castlemartin , Narberth and Dungleddy and each was divided into civil parishes; a 1578 map by Christopher Saxton is the earliest known to show parishes and chapelries in Pembrokeshire; (see list of hundreds and parishes ). The Elizabethan era brought renewed prosperity to
27180-443: The preceding Devonian period, became pentadactylous during the Carboniferous. The period is sometimes called the Age of Amphibians because of the diversification of early amphibians such as the temnospondyls , which became dominant land vertebrates, as well as the first appearance of amniotes including synapsids (the clade to which modern mammals belong) and sauropsids (which include modern reptiles and birds) during
27360-408: The presence of Siphonodella sulcata below the boundary, and the presence of Siphonodella praesulcata and Siphonodella sulcata together above a local unconformity . This means the evolution of one species to the other, the definition of the boundary, is not seen at the La Serre site making precise correlation difficult. The Viséan Stage was introduced by André Dumont in 1832 and is named after
27540-726: The proto-Andes in Bolivia and western Argentina and the Pan-African mountain ranges in southeastern Brazil and southwest Africa. The main phase of the LPIA (c. 335-290 Ma) began in the late Visean, as the climate cooled and atmospheric CO 2 levels dropped. Its onset was accompanied by a global fall in sea level and widespread multimillion-year unconformities. This main phase consisted of a series of discrete several million-year-long glacial periods during which ice expanded out from up to 30 ice centres that stretched across mid- to high latitudes of Gondwana in eastern Australia, northwestern Argentina, southern Brazil, and central and Southern Africa. Isotope records indicate this drop in CO 2 levels
27720-423: The region and threatened to retake all of Pembrokeshire, but died in 1197. After Deheubarth was split by a dynastic feud, Llywelyn the Great almost succeeded in retaking the region of Pembroke between 1216 and his death in 1240. In 1284 the Statute of Rhuddlan was enacted to introduce the English common law system to Wales, heralding 100 years of peace, but had little effect on those areas already established under
27900-456: The region known to the Romans as Demetae . The Déisi merged with the local Welsh, with the regional name underlying Demetae evolving into Dyfed , which existed as an independent petty kingdom from the 5th century. In 904, Hywel Dda married Elen (died 943), daughter of the king of Dyfed Llywarch ap Hyfaidd , and merged Dyfed with his own maternal inheritance of Seisyllwg , forming the new realm of Deheubarth ("southern district"). Between
28080-409: The remaining rainforest in the Gwaun valley . The project is part of a larger, 100-year Atlantic rainforest recovery programme. Human habitation of the region that is now Pembrokeshire extends back to between 125,000 and 70,000 years and there are numerous prehistoric sites such as Pentre Ifan , and neolithic remains (12,000 to 6,500 years ago), more of which were revealed in an aerial survey during
28260-409: The required fresh approach to this new role." Huws started her role as the Welsh Language Commissioner on 1 April 2012. Local councils and the Senedd use Welsh, issuing Welsh versions of their literature, to varying degrees. Road signs in Wales are in Welsh and English. Prior to 2016, the choice of which language to display first was the responsibility of the local council. Since then, as part of
28440-497: The sea. Cyclothem lithologies vary from mudrock and carbonate-dominated to coarse siliciclastic sediment-dominated sequences depending on the paleo-topography, climate and supply of sediments to the shelf. The main period of cyclothem deposition occurred during the Late Paleozoic Ice Age from the Late Mississippian to early Permian, when the waxing and waning of ice sheets led to rapid changes in eustatic sea level . The growth of ice sheets led global sea levels to fall as water
28620-412: The shift occurred over a long period, with some historians claiming that it had happened by as late as the 9th century , with a watershed moment being that proposed by linguist Kenneth H. Jackson , the Battle of Dyrham , a military battle between the West Saxons and the Britons in 577 AD, which split the South Western British from direct overland contact with the Welsh. Four periods are identified in
28800-447: The southeast, to St Dogmaels just down the River Teifi estuary from Cardigan, Ceredigion , in the north. The National Trust owns 60 miles (97 km) of Pembrokeshire's coast. Nowhere in the county is more than 10 miles (16 km) from tidal water. The large estuary and natural harbour of Milford Haven cuts deep into the coast; this inlet is formed by the confluence of the Western Cleddau (which flows through Haverfordwest),
28980-442: The suture between Kazakhstania and Tarim. A continental magmatic arc above a south-dipping subduction zone lay along the northern North China margin, consuming the Paleoasian Ocean. Northward subduction of the Paleo-Tethys beneath the southern margins of North China and Tarim continued during the Carboniferous, with the South Qinling block accreted to North China during the mid to late Carboniferous. No sediments are preserved from
29160-449: The terrain. From 1943 to 1944, 5,000 soldiers from the United States Army's 110th Infantry Regiment were based in the county, preparing for D-Day . Military and industrial targets in the county were subjected to bombing during World War II. After the end of the war, German prisoners of war were accommodated in Pembrokeshire, the largest prison being at Haverfordwest, housing 600. The County of Pembroke War Memorial in Haverfordwest carries
29340-410: The thick accumulation of peat were sufficient to account for the peak in coal formation. During the Carboniferous, there was an increased rate in tectonic plate movements as the supercontinent Pangea assembled. The continents themselves formed a near circle around the opening Paleo-Tethys Ocean, with the massive Panthalassic Ocean beyond. Gondwana covered the south polar region. To its northwest
29520-399: The uplift and erosion of the more mafic basement rocks of the Central Pangea Mountains at this time, CO 2 levels dropped as low as 175 ppm and remained under 400 ppm for 10 Ma. Temperatures across the Carboniferous reflect the phases of the LPIA. At the extremes, during the Permo-Carboniferous Glacial Maximum (299-293 Ma) the global average temperature (GAT) was c. 13 °C (55 °F),
29700-458: The use of Welsh in daily life, and standardised spelling. The New Testament was translated by William Salesbury in 1567, and the complete Bible by William Morgan in 1588. Modern Welsh is subdivided into Early Modern Welsh and Late Modern Welsh. Early Modern Welsh ran from the 15th century through to the end of the 16th century, and the Late Modern Welsh period roughly dates from the 16th century onwards. Contemporary Welsh differs greatly from
29880-405: The west of the county, St Davids is the United Kingdom's smallest city in terms of both size and population (1,841 in 2011). Saundersfoot is the most populous village (more than 2,500 inhabitants) in Pembrokeshire. Less than 4 per cent of the county, according to CORINE , is built-on or green urban. There are three weather stations in Pembrokeshire: at Tenby, Milford Haven and Penycwm , all on
30060-481: The wood being described as "...one of the most magical and special woodlands in the UK." The Wildlife Trust of South and West Wales is in the process of restoring a lost temperate rainforest , also known as a Celtic forest, in Trellwyn Fach, near the town of Fishguard . Although temperate rainforests once covered much of western Britain's coasts, they were destroyed over centuries and only remain in fragments. The 59-hectare (150-acre) site will connect with remnants of
30240-414: The year than produce from other parts of the UK. Other principal arable crops are oilseed rape , wheat and barley , while the main non-arable activities are dairy farming for milk and cheese, beef production and sheep farming. Welsh language Welsh ( Cymraeg [kəmˈraːiɡ] or y Gymraeg [ə ɡəmˈraːiɡ] ) is a Celtic language of the Brittonic subgroup that
30420-437: Was Laurussia. These two continents slowly collided to form the core of Pangea. To the north of Laurussia lay Siberia and Amuria . To the east of Siberia, Kazakhstania , North China and South China formed the northern margin of the Paleo-Tethys, with Annamia laying to the south. The Central Pangean Mountains were formed during the Variscan - Alleghanian - Ouachita orogeny. Today their remains stretch over 10,000 km from
30600-437: Was a key factor in the establishment of the Pembrokeshire Coast National Park and a number of sites of special scientific interest (SSSIs). In the north of the county are the Preseli Mountains, a wide stretch of high moorland supporting sheep farming and some forestry, with many prehistoric sites and the probable source of the bluestones used in the construction of the inner circle of Stonehenge in England. The highest point
30780-411: Was built in 1999 in Haverfordwest and serves as the county council's headquarters. In 2017 Pembrokeshire County Council had 60 members and no political party in overall control; there were 34 independent councillors. In 2009, the question of county names and Royal Mail postal addresses was raised in the Westminster parliament; it was argued that Royal Mail's continued use of the county address Dyfed
30960-469: Was causing concern and confusion in the Pembrokeshire business community. The Royal Mail subsequently ceased requiring county names to be used in postal addresses. In 2018, Pembrokeshire County Council increased council tax by 12.5 per cent, the largest increase since 2004, but the county's council tax remains the lowest in Wales. In 2023 the council published its corporate strategy document for 2023-28. The Pembrokeshire (Communities) Order 2011 established
31140-498: Was complete by around AD 550, and labelled the period between then and about AD 800 "Primitive Welsh". This Primitive Welsh may have been spoken in both Wales and the Hen Ogledd ('Old North') – the Brittonic-speaking areas of what are now northern England and southern Scotland – and therefore may have been the ancestor of Cumbric as well as Welsh. Jackson, however, believed that the two varieties were already distinct by that time. The earliest Welsh poetry – that attributed to
31320-447: Was complete by the Tournaisian, but subduction of the Ural Ocean between Kazakhstania and Laurussia continued until the Bashkirian when the ocean finally closed and continental collision began. Significant strike-slip movement along this zone indicates the collision was oblique. Deformation continued into the Permian and during the late Carboniferous and Permian the region was extensively intruded by granites . The Laurussian continent
31500-447: Was formed by the collision between Laurentia , Baltica and Avalonia during the Devonian. At the beginning of the Carboniferous, some models show it at the equator, whilst others place it further south. In either case, the continent drifted northwards, reaching low latitudes in the northern hemisphere by the end of the Period. The Central Pangean Mountain drew in moist air from the Paleo-Tethys Ocean resulting in heavy precipitation and
31680-646: Was lock away in glaciers. Falling sea levels exposed large tracts of the continental shelves across which river systems eroded channels and valleys and vegetation broke down the surface to form soils . The non-marine sediments deposited on this erosional surface form the base of the cyclothem. As sea levels began to rise, the rivers flowed through increasingly water-logged landscapes of swamps and lakes. Peat mires developed in these wet and oxygen-poor conditions, leading to coal formation. With continuing sea level rise, coastlines migrated landward and deltas , lagoons and esturaries developed; their sediments deposited over
31860-518: Was passed and received Royal Assent, thus making the Welsh language an officially recognised language within Wales. The measure: The measure required public bodies and some private companies to provide services in Welsh. The Welsh government's Minister for Heritage at the time, Alun Ffred Jones , said, "The Welsh language is a source of great pride for the people of Wales, whether they speak it or not, and I am delighted that this measure has now become law. I am very proud to have steered legislation through
32040-399: Was probably spoken throughout the island south of the Firth of Forth . During the Early Middle Ages the British language began to fragment due to increased dialect differentiation, thus evolving into Welsh and the other Brittonic languages. It is not clear when Welsh became distinct. Linguist Kenneth H. Jackson has suggested that the evolution in syllabic structure and sound pattern
32220-450: Was proposed by Russian stratigrapher Sofia Semikhatova in 1934. It was named after Bashkiria , the then Russian name of the republic of Bashkortostan in the southern Ural Mountains of Russia. The GSSP for the base of the Pennsylvanian Subsystem and Bashkirian Stage is located at Arrow Canyon in Nevada , US and was ratified in 1996. It is defined by the first appearance of the conodont Declinognathodus noduliferus . Arrow Canyon lay in
32400-407: Was triggered by tectonic factors with increased weathering of the growing Central Pangean Mountains and the influence of the mountains on precipitation and surface water flow. Closure of the oceanic gateway between the Rheic and Tethys oceans in the early Bashkirian also contributed to climate cooling by changing ocean circulation and heat flow patterns. Warmer periods with reduced ice volume within
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