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107-578: The Arbuckles contain the most diverse suite of mineral resources in Oklahoma: limestone, dolomite, glass sand, granite, sand and gravel, shale, cement, iron ore, lead, zinc, tar sands, and oil and gas; all these minerals are, or have been, produced commercially. The Arbuckle Mountains are the oldest known formations in the United States between the Appalachian and Rocky Mountains. They contain

214-420: A completely crystalline rock. Granitic rocks mainly consist of feldspar , quartz , mica , and amphibole minerals , which form an interlocking, somewhat equigranular matrix of feldspar and quartz with scattered darker biotite mica and amphibole (often hornblende ) peppering the lighter color minerals. Occasionally some individual crystals ( phenocrysts ) are larger than the groundmass , in which case

321-406: A 99-year lease on the site, and it was only when it expired that the college moved to East Lansing, Michigan . Youngstown State University traces its roots to the establishment of a law school by the local YMCA in 1908. The Nashville School of Law was YMCA Night Law School until November 1986, having offered law classes since 1911 and the degree of Juris Doctor since January 1927. YMCA pioneered

428-454: A Chicago-area YMCA administrator, worked at YMCA while also becoming the BSA's first director. In 1916, K. T. Paul became the first Indian national general secretary of India. Paul had started rural development programs for self-reliance of marginal farmers, through co-operatives and credit societies. These programmes became very popular. He also coined the term "rural reconstruction", and many of

535-563: A basaltic magma to a granitic magma, but the quantities produced are small. For example, granitic rock makes up just 4% of the exposures in the South Sandwich Islands . In continental arc settings, granitic rocks are the most common plutonic rocks, and batholiths composed of these rock types extend the entire length of the arc. There are no indication of magma chambers where basaltic magmas differentiate into granites, or of cumulates produced by mafic crystals settling out of

642-584: A career soldier from Virginia who was active in the Indian Territory for the last thirty years of his life. Shortly before his death at Fort Smith, Arkansas , from cholera, several detachments of troops under his command had established an outpost to protect the California road, on Wildhorse Creek in present-day Garvin County, Oklahoma . The post was then named Fort Arbuckle in his honor. Though

749-499: A core of granite and gneiss that date back at least 1.4 billion years. The core is overlain by a 1,500 feet (460 m) layer of Cambrian period rhyolite that is about 525 million years old. Atop the rhyolite is about 15,000 feet (4,600 m) of folded and faulted limestones, dolomites , sandstones, and shales deposited in shallow seas from Late Cambrian through Pennsylvanian time (515 - 290 million years ago). They were named indirectly for Gen. Matthew Arbuckle (1778–1851),

856-899: A curriculum to begin teaching cave diving . In 1973, the Sixth World Council in Kampala , Uganda, became the first World Council in Africa, hosted by Uganda YMCA . It reaffirmed the Paris Basis and adopted a declaration of principles, known as the Kampala Principles. It include the principles of justice, creativity and honesty. It stated what had become obvious: that a global viewpoint was more necessary. It also recognized that YMCA and its national member organizations would have to take political stands, particularly in international challenges and crises. In 1976, YMCA of

963-542: A delegation who hold a number of votes, which are dependent on the financial turnover of that National Council. The World Council is "responsible for setting the policies and direction of the World YMCA, electing its Officers and Executive Committee, evaluating the work of the last four years, and deliberating on priorities for the next quadrennium". The most recent World Council took place in 2022 in Aarhus , Denmark, and

1070-520: A diapir it would expend far too much energy in heating wall rocks, thus cooling and solidifying before reaching higher levels within the crust. Fracture propagation is the mechanism preferred by many geologists as it largely eliminates the major problems of moving a huge mass of magma through cold brittle crust. Magma rises instead in small channels along self-propagating dykes which form along new or pre-existing fracture or fault systems and networks of active shear zones. As these narrow conduits open,

1177-517: A few (known as leucogranites ) contain almost no dark minerals. Granite is nearly always massive (lacking any internal structures), hard (falling between 6 and 7 on the Mohs hardness scale) , and tough. These properties have made granite a widespread construction stone throughout human history. The word "granite" comes from the Latin granum , a grain, in reference to the coarse-grained structure of such

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1284-610: A granite that is derived from partial melting of metasedimentary rocks may have more alkali feldspar, whereas a granite derived from partial melting of metaigneous rocks may be richer in plagioclase. It is on this basis that the modern "alphabet" classification schemes are based. The letter-based Chappell & White classification system was proposed initially to divide granites into I-type (igneous source) granite and S-type (sedimentary sources). Both types are produced by partial melting of crustal rocks, either metaigneous rocks or metasedimentary rocks. I-type granites are characterized by

1391-565: A high content of sodium and calcium, and by a strontium isotope ratio, Sr/ Sr, of less than 0.708. Sr is produced by radioactive decay of Rb, and since rubidium is concentrated in the crust relative to the mantle, a low ratio suggests origin in the mantle. The elevated sodium and calcium favor crystallization of hornblende rather than biotite. I-type granites are known for their porphyry copper deposits. I-type granites are orogenic (associated with mountain building) and usually metaluminous. S-type granites are sodium-poor and aluminum-rich. As

1498-824: A much higher proportion of clay with the Cecil soil series a prime example of the consequent Ultisol great soil group. Granite is a natural source of radiation , like most natural stones. Potassium-40 is a radioactive isotope of weak emission, and a constituent of alkali feldspar , which in turn is a common component of granitic rocks, more abundant in alkali feldspar granite and syenites . Some granites contain around 10 to 20 parts per million (ppm) of uranium . By contrast, more mafic rocks, such as tonalite, gabbro and diorite , have 1 to 5 ppm uranium, and limestones and sedimentary rocks usually have equally low amounts. Many large granite plutons are sources for palaeochannel -hosted or roll front uranium ore deposits , where

1605-536: A peculiar mineralogy and geochemistry, with particularly high silicon and potassium at the expense of calcium and magnesium and a high content of high field strength cations (cations with a small radius and high electrical charge, such as zirconium , niobium , tantalum , and rare earth elements .) They are not orogenic, forming instead over hot spots and continental rifting, and are metaluminous to mildly peralkaline and iron-rich. These granites are produced by partial melting of refractory lithology such as granulites in

1712-568: A range of hills, formed by the metamorphic aureole or hornfels . Granite often occurs as relatively small, less than 100 km stock masses ( stocks ) and in batholiths that are often associated with orogenic mountain ranges. Small dikes of granitic composition called aplites are often associated with the margins of granitic intrusions . In some locations, very coarse-grained pegmatite masses occur with granite. Granite forms from silica-rich ( felsic ) magmas. Felsic magmas are thought to form by addition of heat or water vapor to rock of

1819-661: A result of the karst topography , standing water is rarely found atop the Arbuckle Mountains, the water seeps through fractures and planes of separation in the limestone bedrock, dissolving the rock to produce a network of caves and solution conduits throughout the limestone formations. Organizations such as the Arbuckle Karst Conservancy and Arbuckle Mountains Grotto of the National Speleological Society actively study

1926-415: A result, they contain micas such as biotite and muscovite instead of hornblende. Their strontium isotope ratio is typically greater than 0.708, suggesting a crustal origin. They also commonly contain xenoliths of metamorphosed sedimentary rock, and host tin ores. Their magmas are water-rich, and they readily solidify as the water outgasses from the magma at lower pressure, so they less commonly make it to

2033-578: A role that similar to that of a CEO. At each stage of the affiliation process, there are usually membership fees paid by local YMCAs to the central organization. Ever since the first World Conference in August 1855, in Paris , the World YMCA has convened a World Conference, later renamed the World Council, every three to four years and is YMCA's highest decision making forum. Every National Council sends

2140-450: A variety of recreational, cultural, leadership, academic, and social skills for development. Multiple colleges and universities have historically had connections to YMCA. Springfield College , of Springfield, Massachusetts, was founded in 1885 as an international training school for YMCA Professionals, while one of the two schools that eventually became Concordia University — Sir George Williams College —started from night courses offered at

2247-547: A wide variety of youth activities, including providing athletic facilities, holding classes for a wide variety of skills, promoting Christianity, and humanitarian work. YMCA is a non-governmental federation , with each independent local YMCA affiliated with its national organization. The national organizations, in turn, are part of both a geographically regional area alliance and the World Alliance of YMCA. YMCA programs vary between nations and regions, but are all based on

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2354-466: Is grus , which is often made up of coarse-grained fragments of disintegrated granite. Climatic variations also influence the weathering rate of granites. For about two thousand years, the relief engravings on Cleopatra's Needle obelisk had survived the arid conditions of its origin before its transfer to London. Within two hundred years, the red granite has drastically deteriorated in the damp and polluted air there. Soil development on granite reflects

2461-545: Is microgranite . The extrusive igneous rock equivalent of granite is rhyolite . Granitic rock is widely distributed throughout the continental crust . Much of it was intruded during the Precambrian age; it is the most abundant basement rock that underlies the relatively thin sedimentary veneer of the continents. Outcrops of granite tend to form tors , domes or bornhardts , and rounded massifs . Granites sometimes occur in circular depressions surrounded by

2568-517: Is 3–6·10 Pa·s. The melting temperature of dry granite at ambient pressure is 1215–1260 °C (2219–2300 °F); it is strongly reduced in the presence of water, down to 650 °C at a few hundred megapascals of pressure. Granite has poor primary permeability overall, but strong secondary permeability through cracks and fractures if they are present. A worldwide average of the chemical composition of granite, by weight percent, based on 2485 analyses: The medium-grained equivalent of granite

2675-480: Is a coarse-grained ( phaneritic ) intrusive igneous rock composed mostly of quartz , alkali feldspar , and plagioclase . It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground. It is common in the continental crust of Earth, where it is found in igneous intrusions . These range in size from dikes only a few centimeters across to batholiths exposed over hundreds of square kilometers. Granite

2782-410: Is an excess of aluminum beyond what can be taken up in feldspars (Al 2 O 3 > CaO + K 2 O + Na 2 O) are described as peraluminous , and they contain aluminum-rich minerals such as muscovite . The average density of granite is between 2.65 and 2.75 g/cm (165 and 172 lb/cu ft), its compressive strength usually lies above 200 MPa (29,000 psi), and its viscosity near STP

2889-637: Is believed to have a mass of around 81 tonnes. It was the tallest temple in south India. Imperial Roman granite was quarried mainly in Egypt, and also in Turkey, and on the islands of Elba and Giglio . Granite became "an integral part of the Roman language of monumental architecture". The quarrying ceased around the third century AD. Beginning in Late Antiquity the granite was reused, which since at least

2996-434: Is called a binary or two-mica granite. Two-mica granites are typically high in potassium and low in plagioclase, and are usually S-type granites or A-type granites, as described below . Another aspect of granite classification is the ratios of metals that potentially form feldspars. Most granites have a composition such that almost all their aluminum and alkali metals (sodium and potassium) are combined as feldspar. This

3103-472: Is derived from programme fees, membership dues, community chests, foundation grants, charitable contributions, sustaining memberships, corporate sponsors and other funding models used in the charitable sector. YMCA globally operates on a federation model with each independent local YMCA affiliated with its national organization, known as a National Council. The national organizations, in turn, are affiliated to both an Area Alliance, including Europe, Asia Pacific,

3210-433: Is limited by the amount of thermal energy available, which must be replenished by crystallization of higher-melting minerals in the magma. Thus, the magma is melting crustal rock at its roof while simultaneously crystallizing at its base. This results in steady contamination with crustal material as the magma rises. This may not be evident in the major and minor element chemistry, since the minerals most likely to crystallize at

3317-404: Is permeated by sheets and channels of light granitic rock (the leucosome ). The leucosome is interpreted as partial melt of a parent rock that has begun to separate from the remaining solid residue (the melanosome). If enough partial melt is produced, it will separate from the source rock, become more highly evolved through fractional crystallization during its ascent toward the surface, and become

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3424-454: Is relieved when overlying material is removed by erosion or other processes. Chemical weathering of granite occurs when dilute carbonic acid , and other acids present in rain and soil waters, alter feldspar in a process called hydrolysis . As demonstrated in the following reaction, this causes potassium feldspar to form kaolinite , with potassium ions, bicarbonate, and silica in solution as byproducts. An end product of granite weathering

3531-411: Is some concern that some granite sold as countertops or building material may be hazardous to health. Dan Steck of St. Johns University has stated that approximately 5% of all granite is of concern, with the caveat that only a tiny percentage of the tens of thousands of granite slab types have been tested. Resources from national geological survey organizations are accessible online to assist in assessing

3638-479: Is that magma will rise through the crust as a single mass through buoyancy . As it rises, it heats the wall rocks , causing them to behave as a power-law fluid and thus flow around the intrusion allowing it to pass without major heat loss. This is entirely feasible in the warm, ductile lower crust where rocks are easily deformed, but runs into problems in the upper crust which is far colder and more brittle. Rocks there do not deform so easily: for magma to rise as

3745-410: Is the case when K 2 O + Na 2 O + CaO > Al 2 O 3 > K 2 O + Na 2 O. Such granites are described as normal or metaluminous . Granites in which there is not enough aluminum to combine with all the alkali oxides as feldspar (Al 2 O 3 < K 2 O + Na 2 O) are described as peralkaline , and they contain unusual sodium amphiboles such as riebeckite . Granites in which there

3852-489: Is typical of a larger family of granitic rocks , or granitoids , that are composed mostly of coarse-grained quartz and feldspars in varying proportions. These rocks are classified by the relative percentages of quartz, alkali feldspar, and plagioclase (the QAPF classification ), with true granite representing granitic rocks rich in quartz and alkali feldspar. Most granitic rocks also contain mica or amphibole minerals, though

3959-409: Is typically orthoclase or microcline and is often perthitic . The plagioclase is typically sodium-rich oligoclase . Phenocrysts are usually alkali feldspar. Granitic rocks are classified according to the QAPF diagram for coarse grained plutonic rocks and are named according to the percentage of quartz , alkali feldspar ( orthoclase , sanidine , or microcline ) and plagioclase feldspar on

4066-428: Is uncommon, is classified simply as quartz-rich granitoid or, if composed almost entirely of quartz, as quartzolite . True granites are further classified by the percentage of their total feldspar that is alkali feldspar. Granites whose feldspar is 65% to 90% alkali feldspar are syenogranites , while the feldspar in monzogranite is 35% to 65% alkali feldspar. A granite containing both muscovite and biotite micas

4173-786: The Arbuckle Group , the Simpson Group , Viola Group, and the Hunton Group . Uplift , faulting , and folding occurred during the Wichita Orogeny , followed by erosion . Underlying the Arbuckle Mountains is the Arbuckle-Simpson aquifer , housing freshwater which emanates at springs to provide the base flows of the Blue River and Honey Creek, which flows over Turner Falls south of Davis . As

4280-766: The Chickasaw National Recreation Area , and Lake of the Arbuckles . Turner Falls is located 5 miles (8.0 km) south of Davis, whereas Chickasaw NRA is located in the city of Sulphur. The area is also the location of several campgrounds, including the YMCA 's Camp Classen and the Baptist General Convention of Oklahoma's Falls Creek Baptist Conference Center , which hosts 55,000 campers each summer. Granite Granite ( / ˈ ɡ r æ n ɪ t / GRAN -it )

4387-635: The International Committee of the Red Cross and win the first Nobel Peace Prize . Dunant successfully convinced YMCA Paris to organise the first YMCA World Conference. The Conference took place in August 1855, bringing together 99 young delegates from nine countries, held before the Exposition Universelle (1855) . They discussed joining in a federation to enhance cooperation amongst individual YMCA societies. This marked

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4494-727: The Montreal YMCA. Northeastern University began out of a YMCA in Boston , and Franklin University began as YMCA School of Commerce. San Francisco's Golden Gate University traces its roots to the founding of YMCA Night School on 1 November 1881. Detroit College of Law , now the Michigan State University College of Law , was founded with a strong connection to the Detroit , Michigan YMCA. It had

4601-542: The 1978 Village People song " Y.M.C.A. "). In 1940, there were about 100,000 rooms at YMCAs, more than any hotel chain. By 2006, YMCAs with residences had become relatively rare in the US, but many still remain. YMCAs offer classes in the visual arts , including ceramics, drawing, painting, and photography, the performing arts , including music, dance, and poetry, and literature , including reading, storytelling, and public readings. These programs are not offered at each YMCA but

4708-578: The 20th century, YMCA had "become interdenominational and more concerned with promoting morality and good citizenship than a distinctive interpretation of Christianity." Prior to the beginning of the American Civil War , YMCA provided nursing, shelter, and other support during wartime in the United States. In 1878, the World YMCA offices were established in Geneva , Switzerland by Dunant. Later, in 1900, North American YMCAs, in collaboration with

4815-476: The 21st World Council is scheduled for July 2026 in Toronto . YMCAs around the world offer various types of accommodation. In some places, this takes the form of budget accommodation available to the public such as youth hostels, or hotels, which, in turn, generate income for other charitable activities. In England and Wales , YMCAs offer supported accommodation for vulnerable and homeless young people. Until

4922-571: The A-Q-P half of the diagram. True granite (according to modern petrologic convention) contains between 20% and 60% quartz by volume, with 35% to 90% of the total feldspar consisting of alkali feldspar . Granitic rocks poorer in quartz are classified as syenites or monzonites , while granitic rocks dominated by plagioclase are classified as granodiorites or tonalites . Granitic rocks with over 90% alkali feldspar are classified as alkali feldspar granites . Granitic rock with more than 60% quartz, which

5029-567: The European Union safety standards (section 4.1.1.1 of the National Health and Engineering study) and radon emission levels well below the average outdoor radon concentrations in the US. Granite and related marble industries are considered one of the oldest industries in the world, existing as far back as Ancient Egypt . Major modern exporters of granite include China, India, Italy, Brazil, Canada, Germany, Sweden, Spain and

5136-586: The Middle East, Africa, Latin America and the Caribbean, Mexico, the United States, and Canada, and the World YMCA. The World YMCA is the highest affiliation body. Each local, national and regional YMCA is independent of each other, but local, regional and international cooperation, partnerships and collaborations are part of the organizations work. Each National Council is led by a National General Secretary,

5243-507: The USA appointed Violet King Henry to executive director to its Organizational Development Group, making her the first woman named to a senior management position with the American national YMCA. In 1985, the World Council of YMCAs passed a resolution against apartheid , and anti-apartheid campaigns were formed under the leadership of Lee Soo-Min ( Korea ), the first Asian secretary general of

5350-510: The USA rebranded its name to the popular nickname "The Y" and revised the iconic red and black logo to create five colored versions. Today, YMCAs are open to all, regardless of ability, age, culture, ethnicity, gender, race, religion, sexual orientation and socioeconomic background. During the 19th World Council meeting in 2018 in Chiang Mai, Carlos Sanvee from Togo became the first African and current Secretary General of World YMCA. During

5457-839: The United Kingdom in part thanks to the Great Exhibition of 1851, the first in a series of World's Fairs which was held in Hyde Park, London . Later that year there were YMCAs in Australia , Belgium , Canada , France , Germany , Hong Kong , the Netherlands , Switzerland , and the United States . The idea of creating a truly global movement with an international headquarters was led by Henry Dunant , Secretary of YMCA Geneva, who would later go on to found

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5564-609: The United Kingdom's largest non-theatrical distribution companies. In 1947 the World YMCA gained special consultative status with the United Nations Economic and Social Council . In 1955 the first black President of the World YMCA, Charles Dunbar Sherman from Liberia, was elected. At 37 years, he was also the youngest president in World YMCA history. In 1959 YMCA of the USA developed the first nationally organized scuba diving course and certified their first skin and scuba diving instructors . By 1974, YMCA had set up

5671-448: The United States. The Red Pyramid of Egypt ( c.  2590 BC ), named for the light crimson hue of its exposed limestone surfaces, is the third largest of Egyptian pyramids . Pyramid of Menkaure , likely dating 2510 BC, was constructed of limestone and granite blocks. The Great Pyramid of Giza (c. 2580 BC ) contains a huge granite sarcophagus fashioned of "Red Aswan Granite". The mostly ruined Black Pyramid dating from

5778-835: The World YMCA, set up centres to work with emigrants in European ports, as millions of people were leaving for the US. In 1880, in Norway, YMCA became the first national organization to adopt a strict policy of equal gender representation in committees and national boards. In 1885, Camp Baldhead (later known as Camp Dudley), the first residential camp in the United States and North America, was established by George A. Sanford and Sumner F. Dudley, both of whom worked for YMCA. The camp, originally located near Orange Lake in New Jersey , moved to Lake Wawayanda in Sussex County, New Jersey ,

5885-606: The World YMCA. In 1998, the 14th World Council of YMCAs in Germany adopted "Challenge 21", intended to place more focus on global challenges, such as gender equality , sustainable development , war and peace, fair distribution, and the challenges of globalization , racism, and HIV/AIDS. In 2002, the World Council in Oaxtepec , Morelos , in Mexico, called for a peaceful solution to the Middle East crisis. On 12 July 2010, YMCA of

5992-575: The YMCA created and led the Committee of Nîmes, also known as the Camps Committee, a group that gathered leaders from over twenty humanitarian organizations to coordinate advocacy for people in the internment camps, including helping children leave these camps to live in children's colonies or eventually escape to freedom. YMCA Motion Picture Bureau, renamed Association Films in 1946, was one of

6099-419: The base of the chamber are the same ones that would crystallize anyway, but crustal assimilation is detectable in isotope ratios. Heat loss to the country rock means that ascent by assimilation is limited to distance similar to the height of the magma chamber. Physical weathering occurs on a large scale in the form of exfoliation joints , which are the result of granite's expanding and fracturing as pressure

6206-772: The beginning of the World Alliance of YMCAs. The conference adopted the Paris Basis , a common mission for all present and future national YMCAs. Its motto was taken from the Bible, " That they all may be one " ( John 17 :21). Other ecumenical bodies, such as the World YWCA , the World Council of Churches , and the World Student Christian Federation have reflected elements of the Paris Basis in their founding mission statements. In 1865,

6313-418: The big difference in rheology between mafic and felsic magmas makes this process problematic in nature. Granitization is an old, and largely discounted, hypothesis that granite is formed in place through extreme metasomatism . The idea behind granitization was that fluids would supposedly bring in elements such as potassium, and remove others, such as calcium, to transform a metamorphic rock into granite. This

6420-687: The camps to attend Springfield College and providing youth activities in the camps. In addition, YMCA was one of seven organizations that helped to found the USO . In Europe , YMCA helped refugees, particularly displaced Jews. Sometimes YMCA participated in escape operations. Mostly, however, its role was limited to providing relief packages to refugees. It was also involved in war work with displaced persons and refugees. It set up War Prisoners Aid to support prisoners of war by providing sports equipment, musical instruments, art materials, radios, gramophones , eating utensils, and other items. Donald A. Lowrie of

6527-588: The concept of night school , providing educational opportunities for people with full-time employment. Many YMCAs offer ESL programs, alternative high school , day care , and summer camp programs. In India , YMCA University of Science and Technology of Faridabad was founded in 1969. It offers various programs related to science and engineering. During the 1880s, the Cleveland YMCA began to offer day and evening courses to students who did not otherwise have access to higher education. The YMCA program

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6634-404: The division between S-type (produced by underplating) and I-type (produced by injection and differentiation) granites, discussed below. The composition and origin of any magma that differentiates into granite leave certain petrological evidence as to what the granite's parental rock was. The final texture and composition of a granite are generally distinctive as to its parental rock. For instance,

6741-473: The early 16th century became known as spolia . Through the process of case-hardening , granite becomes harder with age. The technology required to make tempered metal chisels was largely forgotten during the Middle Ages. As a result, Medieval stoneworkers were forced to use saws or emery to shorten ancient columns or hack them into discs. Giorgio Vasari noted in the 16th century that granite in quarries

6848-474: The establishment in 1889 of Big Cove YMCA Camp in Merigomish, Nova Scotia . YMCAs offer child care, including supervised space for infants, toddlers, preschoolers, and school-age children to stay and play while parents enjoy a workout. YMCA staff members are trained to ensure the safety and well-being of the children in their care so that parents can confidently pursue their fitness goals or take part in

6955-619: The first World Conference: the need to respect the local autonomy of YMCA societies, and the purpose of YMCA: to unite all young, male Christians for the extension and expansion of the Kingdom of God. The former idea is expressed in the preamble: The delegates of various Young Men's Christian Associations of Europe and America, assembled in Conference at Paris, the 22 August 1855 feeling that they are one in principle and in operation, recommend to their respective Societies to recognize with them

7062-579: The first magma to enter solidifies and provides a form of insulation for later magma. These mechanisms can operate in tandem. For example, diapirs may continue to rise through the brittle upper crust through stoping , where the granite cracks the roof rocks, removing blocks of the overlying crust which then sink to the bottom of the diapir while the magma rises to take their place. This can occur as piecemeal stopping (stoping of small blocks of chamber roof), as cauldron subsidence (collapse of large blocks of chamber roof), or as roof foundering (complete collapse of

7169-433: The first meeting that led to the founding of YMCA with the purpose of "the improving of the spiritual condition of young men engaged in the drapery, embroidery , and other trades." Anthony Ashley-Cooper, 7th Earl of Shaftesbury served as YMCA's first president from 1851 until his death in 1885. By 1845, YMCA started a popular series of lectures that from 1848 were held at Exeter Hall , London, and started being published

7276-607: The following year, and then to the shore of Lake Champlain near Westport, New York , in 1891. YMCA was an early influence on scouting that began in the United Kingdom in 1907. The year after its inception by Robert Baden-Powell , the first scout troops met in the Nottingham and Birkenhead YMCA buildings. The YMCA would also influence the Boy Scouts of America (BSA) and German Scouting . Edgar M. Robinson ,

7383-475: The following year, with the series running until 1865. YMCA was associated with industrialisation and the movement of young people to cities to work. YMCA "combined preaching in the streets and the distribution of religious tracts with a social ministry. Philanthropists saw them as places for wholesome recreation that would preserve youth from the temptations of alcohol, gambling, and prostitution and that would promote good citizenship." The YMCA spread outside

7490-434: The fourth World Conference of YMCAs, held in Germany, affirmed the importance of developing the whole individual in spirit, mind, and body. The concept of physical work through sports, a new concept for the time, was also recognized as part of this " muscular Christianity ". YMCA has cooperated with camping organizations, including Boy Scouts of America , Camp Fire , and Girl Scouts of the USA . Two themes resonated during

7597-713: The grotto is a highly regarded piece of Buddhist art , and along with the temple complex to which it belongs, Seokguram was added to the UNESCO World Heritage List in 1995. Rajaraja Chola I of the Chola Dynasty in South India built the world's first temple entirely of granite in the 11th century AD in Tanjore , India . The Brihadeeswarar Temple dedicated to Lord Shiva was built in 1010. The massive Gopuram (ornate, upper section of shrine)

7704-477: The karst features of the Arbuckle Mountains to preserve the biological ecosystems and groundwater resources. The organizations currently maintain databases of more than 1,000 caves and springs in the Arbuckle Mountains. The Arbuckles have gradually eroded to their present heights of 300–500 feet above the surrounding terrain or 1300–1400 feet above sea level. The range is approximately 35 miles (56 km) east-to-west and 10–15 miles north-to-south. The main part of

7811-409: The late 1950s, YMCAs in the United States were built with hotel-like rooms called residences or dormitories. These rooms were built with the young men in mind coming from rural America and many foreign-born young men arriving to the new cities. The rooms became a significant part of American culture , known as an inexpensive and safe place for a visitor to stay in an unfamiliar city (as, for example, in

7918-474: The lower crust , rather than by decompression of mantle rock, as is the case with basaltic magmas. It has also been suggested that some granites found at convergent boundaries between tectonic plates , where oceanic crust subducts below continental crust, were formed from sediments subducted with the oceanic plate. The melted sediments would have produced magma intermediate in its silica content, which became further enriched in silica as it rose through

8025-729: The lower continental crust at high thermal gradients. This leads to significant extraction of hydrous felsic melts from granulite-facies resitites. A-type granites occur in the Koettlitz Glacier Alkaline Province in the Royal Society Range, Antarctica. The rhyolites of the Yellowstone Caldera are examples of volcanic equivalents of A-type granite. M-type granite was later proposed to cover those granites that were clearly sourced from crystallized mafic magmas, generally sourced from

8132-435: The magma is inevitable once enough magma has accumulated. However, the question of precisely how such large quantities of magma are able to shove aside country rock to make room for themselves (the room problem ) is still a matter of research. Two main mechanisms are thought to be important: Of these two mechanisms, Stokes diapirism has been favoured for many years in the absence of a reasonable alternative. The basic idea

8239-426: The magma. Other processes must produce these great volumes of felsic magma. One such process is injection of basaltic magma into the lower crust, followed by differentiation, which leaves any cumulates in the mantle. Another is heating of the lower crust by underplating basaltic magma, which produces felsic magma directly from crustal rock. The two processes produce different kinds of granites, which may be reflected in

8346-408: The magmatic parent of granitic rock. The residue of the source rock becomes a granulite . The partial melting of solid rocks requires high temperatures and the addition of water or other volatiles which lower the solidus temperature (temperature at which partial melting commences) of these rocks. It was long debated whether crustal thickening in orogens (mountain belts along convergent boundaries )

8453-405: The mantle. Although the fractional crystallisation of basaltic melts can yield small amounts of granites, which are sometimes found in island arcs, such granites must occur together with large amounts of basaltic rocks. H-type granites were suggested for hybrid granites, which were hypothesized to form by mixing between mafic and felsic from different sources, such as M-type and S-type. However,

8560-578: The military's morale and comfort operations worldwide. Irving Berlin wrote Yip Yip Yaphank , a revue that included a song entitled "I Can Always Find a Little Sunshine in the YMCA". Frances Gulick was a YMCA worker stationed in France during World War I who received a United States Army citation for valour and courage on the field. During World War II , YMCA was involved in supporting millions of POWs and in supporting Japanese Americans in internment camps . This help included helping young men leave

8667-607: The ones who have same to offer these programs give a benefit to their communities to give children a safe place to go to enjoy such activities. YMCA camping began in 1885 when Camp Baldhead (later known as Camp Dudley ) was established by G.A. Sanford and Sumner F. Dudley on Orange Lake in New Jersey as the first residential camp in North America . The camp later moved to Lake Champlain near Westport, New York . Camping also had early origins in YMCA movement in Canada with

8774-441: The overlying crust. Early fractional crystallisation serves to reduce a melt in magnesium and chromium, and enrich the melt in iron, sodium, potassium, aluminum, and silicon. Further fractionation reduces the content of iron, calcium, and titanium. This is reflected in the high content of alkali feldspar and quartz in granite. The presence of granitic rock in island arcs shows that fractional crystallization alone can convert

8881-527: The post was abandoned in 1870, the name had already transferred in common usage to the nearby hills. Geologically the Arbuckles are an elongate anticline structure with an orientation or strike of west-northwest. The core of the structure consists of Proterozoic extrusive and intrusive rocks, the Colbert rhyolite porphyry and the Tishomingo granite (age dated at 1374 Ma), which are overlain by

8988-604: The principles espoused in the Paris Basis . The YMCA is a parachurch organization based on Protestant values. Similar organizations include the YWCA , and the Young Men's Hebrew Association (YMHA). In popular culture, the YMCA is the subject of the 1978 song " Y.M.C.A. " by the Village People . The Young Men's Christian Association (YMCA) was founded on 6 June 1844, by George Williams and eleven friends. Williams

9095-612: The principles he developed were later incorporated into the Indian's government nationwide community development programs. In 1923, Y. C. James Yen , of YMCA China, devised the "thousand character system", based on pilot projects in education. The method also became very popular, and in 1923, it led to the founding of the Chinese National Association of the Mass Education Movement. In 1878, YMCA

9202-399: The range is located in northern Carter County and southern Murray County , approximately 15 miles (24 km) north of Ardmore and 5 miles (8.0 km) south of Davis, Oklahoma on Interstate 35 . The eastern flank of the ridge is approximately 5 miles (8.0 km) south of Sulphur on U.S. Highway 177 . Popular recreation areas in the Arbuckle Mountains include Turner Falls Park ,

9309-736: The reign of Amenemhat III once had a polished granite pyramidion or capstone, which is now on display in the main hall of the Egyptian Museum in Cairo (see Dahshur ). Other uses in Ancient Egypt include columns , door lintels , sills , jambs , and wall and floor veneer. How the Egyptians worked the solid granite is still a matter of debate. Tool marks described by the Egyptologist Anna Serotta indicate

9416-564: The risk factors in granite country and design rules relating, in particular, to preventing accumulation of radon gas in enclosed basements and dwellings. A study of granite countertops was done (initiated and paid for by the Marble Institute of America) in November 2008 by National Health and Engineering Inc. of USA. In this test, all of the 39 full-size granite slabs that were measured for the study showed radiation levels well below

9523-418: The rock's high quartz content and dearth of available bases, with the base-poor status predisposing the soil to acidification and podzolization in cool humid climates as the weather-resistant quartz yields much sand. Feldspars also weather slowly in cool climes, allowing sand to dominate the fine-earth fraction. In warm humid regions, the weathering of feldspar as described above is accelerated so as to allow

9630-414: The rocks often bear a close resemblance. Under these conditions, granitic melts can be produced in place through the partial melting of metamorphic rocks by extracting melt-mobile elements such as potassium and silicon into the melts but leaving others such as calcium and iron in granulite residues. This may be the origin of migmatites . A migmatite consists of dark, refractory rock (the melanosome ) that

9737-492: The roof of a shallow magma chamber accompanied by a caldera eruption.) There is evidence for cauldron subsidence at the Mt. Ascutney intrusion in eastern Vermont. Evidence for piecemeal stoping is found in intrusions that are rimmed with igneous breccia containing fragments of country rock. Assimilation is another mechanism of ascent, where the granite melts its way up into the crust and removes overlying material in this way. This

9844-511: The same World Council meeting, Patricia Pelton from Canada emerged as the first female President of World YMCA. YMCA's 175th anniversary in 2019 was celebrated with a global gathering of the organisation's young leaders at ExCeL London from 4 to 7 August, with 3,200 people from 100 countries. The event celebrated youth leadership, and elevated the United Nations Sustainable Development Goals . It

9951-435: The surface than magmas of I-type granites, which are thus more common as volcanic rock (rhyolite). They are also orogenic but range from metaluminous to strongly peraluminous. Although both I- and S-type granites are orogenic, I-type granites are more common close to the convergent boundary than S-type. This is attributed to thicker crust further from the boundary, which results in more crustal melting. A-type granites show

10058-440: The texture is known as porphyritic . A granitic rock with a porphyritic texture is known as a granite porphyry . Granitoid is a general, descriptive field term for lighter-colored, coarse-grained igneous rocks. Petrographic examination is required for identification of specific types of granitoids. Granites can be predominantly white, pink, or gray in color, depending on their mineralogy . The alkali feldspar in granites

10165-656: The unity existing among their Associations, and while preserving a complete independence as to their particular organization and modes of action, to form a Confederation of secession on the following fundamental principle, such principle to be regarded as the basis of admission of other Societies in future. YMCA was influential during the 1870s and the 1930s, during which times it most successfully promoted "evangelical Christianity in weekday and Sunday services, while promoting good sportsmanship in athletic contests in gyms (where basketball and volleyball were invented) and swimming pools." Later in this period, and continuing on through

10272-502: The uranium washes into the sediments from the granite uplands and associated, often highly radioactive pegmatites. Cellars and basements built into soils over granite can become a trap for radon gas, which is formed by the decay of uranium. Radon gas poses significant health concerns and is the number two cause of lung cancer in the US behind smoking. Thorium occurs in all granites. Conway granite has been noted for its relatively high thorium concentration of 56±6 ppm. There

10379-617: The use of flint tools on finer work with harder stones, e.g. when producing the hieroglyphic inscriptions. Patrick Hunt has postulated that the Egyptians used emery , which has greater hardness. The Seokguram Grotto in Korea is a Buddhist shrine and part of the Bulguksa temple complex. Completed in 774 AD, it is an artificial grotto constructed entirely of granite. The main Buddha of

10486-504: The various YMCA programs. Family programs include family nights, parent-child classes, and different events put on by the YMCA. YMCA's parent/child programs, conducted under YMCA's Y-Guides program, provides structured opportunities for fellowship, camping, and community-building activities, including craft-making and community service, for several generations of parents and children from kindergarten through eighth grade. YMCA after-school programs are geared towards providing students with

10593-574: Was "far softer and easier to work than after it has lain exposed" while ancient columns, because of their "hardness and solidity have nothing to fear from fire or sword, and time itself, that drives everything to ruin, not only has not destroyed them but has not even altered their colour." YMCA YMCA , sometimes regionally called the Y , is a worldwide youth organization based in Geneva , Switzerland, with more than 64 million beneficiaries in 120 countries. It has nearly 90,000 staff, some 920,000 volunteers and 12,000 branches worldwide. It

10700-493: Was a London draper who was typical of the young men drawn to the cities by the Industrial Revolution . They were concerned about the lack of healthy activities for young men in major cities; the options available were usually taverns and brothels . Williams' idea grew out of meetings he held for prayer and Bible-reading among his fellow workers in a business in the city of London , and on 6 June 1844, he held

10807-723: Was appointed a Commander of the Order of the British Empire (CBE) in 1918), Oswald Chambers and Robert and Olave Baden-Powell . Within the first month the YMCA Women's Auxiliary was formed, and Princess Helena Victoria of Schleswig-Holstein would go on to become a notable member and chairman of its organising committee. During World War I, YMCA raised and spent over $ 155 million on welfare efforts for American soldiers. It deployed over 25,000 staff in military units and bases from Siberia to Egypt to France. They took over

10914-682: Was attended by guests including Jayathma Wickramanayake on behalf of Office of the Secretary-General's Envoy on Youth and María Fernanda Espinosa , the President of the United Nations General Assembly . A federated model of governance has created a diversity of YMCA programmes and services, with YMCAs in different countries and communities offering vastly different programming in response to local community needs. Financial support for local associations

11021-480: Was founded in London on 6 June 1844 by George Williams as the Young Men's Christian Association . The organization aims to put Christian values into practice by developing a healthy body, mind, and spirit. From its inception, YMCA grew rapidly, ultimately becoming a worldwide movement founded on the principles of muscular Christianity . Local YMCAs deliver projects and services focused on youth development through

11128-887: Was organized near the Jaffa Gate of the Old City of Jerusalem and the current landmark building was dedicated by General Lord Allenby in 1933 during the British Mandate of Palestine. Within ten days of the declaration of World War I , YMCA had established 250 recreation centres, also known as huts, in the United Kingdom, and went to build temporary huts across Europe to support both soldiers and civilians alike, run by thousands of volunteers. Some of them, known as field secretaries, also went into war zones to support prisoners-of-war in Europe and Russia. Notable supporters and volunteers included Clementine Churchill (for which she

11235-545: Was reorganized in 1906 as the Association Institute, and this in turn was established as Fenn College in 1929. In 1964, Fenn College became a state college named Cleveland State University. American high school students have a chance to participate in YMCA Youth and Government , wherein clubs of children representing each YMCA community convene annually in their respective state legislatures to "take over

11342-405: Was sufficient to produce granite melts by radiogenic heating , but recent work suggests that this is not a viable mechanism. In-situ granitization requires heating by the asthenospheric mantle or by underplating with mantle-derived magmas. Granite magmas have a density of 2.4 Mg/m , much less than the 2.8 Mg/m of high-grade metamorphic rock. This gives them tremendous buoyancy, so that ascent of

11449-564: Was supposed to occur across a migrating front. However, experimental work had established by the 1960s that granites were of igneous origin. The mineralogical and chemical features of granite can be explained only by crystal-liquid phase relations, showing that there must have been at least enough melting to mobilize the magma. However, at sufficiently deep crustal levels, the distinction between metamorphism and crustal melting itself becomes vague. Conditions for crystallization of liquid magma are close enough to those of high-grade metamorphism that

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