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78-858: The Three Pashas , also known as the Young Turk triumvirate or CUP triumvirate , consisted of Mehmed Talaat Pasha , the Grand Vizier (prime minister) and Minister of the Interior ; Ismail Enver Pasha , the Minister of War and Commander-in-Chief to the Sultan; and Ahmed Djemal Pasha , the Minister of the Navy and governor-general of Syria , who effectively ruled the Ottoman Empire after

156-697: A de facto independent state , however, it still owed technical fealty to the Ottoman Sultan. Moreover, Muhammad Ali harboured ambitions of supplanting the Osman Dynasty in Constantinople (now Istanbul ), and sought to style his Egyptian realm as a successor sultanate to the Ottoman Empire. As such, he bore the title of Pasha , in addition to the official title of Wāli , and the self-declared title of Khedive . His successors to

234-527: A halocline that stops at the Cold Intermediate Layer (CIL). This layer is composed of cool, salty surface waters, which are the result of localized atmospheric cooling and decreased fluvial input during the winter months. It is the remnant of the winter surface mixed layer. The base of the CIL is marked by a major pycnocline at about 100–200 metres (330–660 ft), and this density disparity

312-541: A marked vertical stratification and a warm, shallow mixed layer. Day length and insolation intensity also control the extent of the photic zone . Subsurface productivity is limited by nutrient availability, as the anoxic bottom waters act as a sink for reduced nitrate , in the form of ammonia . The benthic zone also plays an important role in Black Sea nutrient cycling, as chemosynthetic organisms and anoxic geochemical pathways recycle nutrients which can be upwelled to

390-470: A matter of debate. Contrary to titles like emir ( amīr ) and bey ( beg ), which were established in usage much earlier, the title pasha came into Ottoman usage right after the reign of Osman I (d. 1324), though it had been used before the Ottomans by some Anatolian Turkish rulers of the same era. Old Turkish had no fixed distinction between /b/ and /p/, and the word was spelled başa still in

468-601: A maximum depth of 2,212 m (7,257 ft), and a volume of 547,000 km (131,000 cu mi). Most of its coasts ascend rapidly. These rises are the Pontic Mountains to the south, bar the southwest-facing peninsulas, the Caucasus Mountains to the east, and the Crimean Mountains to the mid-north. In the west, the coast is generally small floodplains below foothills such as

546-705: A positive water balance , with an annual net outflow of 300 km (72 cu mi) per year through the Bosporus and the Dardanelles into the Aegean Sea . While the net flow of water through the Bosporus and Dardanelles (known collectively as the Turkish Straits ) is out of the Black Sea, water generally flows in both directions simultaneously: Denser, more saline water from the Aegean flows into

624-680: A pre-emptive strike. Ismail Enver had only once taken control of any military activity ( Battle of Sarıkamış ), and left the Third Army in ruins. The First Suez Offensive and the Arab Revolt are Ahmed Cemal's most significant failures. As de facto rulers, the Three Pashas have been considered the masterminds behind the Armenian genocide. After the war the three were put on trial (in their absence) and sentenced to death, although

702-589: A strongly stratified vertical structure. Because of the extreme stratification, it is classified as a salt wedge estuary . Inflow from the Mediterranean Sea through the Bosporus and Dardanelles has a higher salinity and density than the outflow, creating the classic estuarine circulation. This means that the inflow of dense water from the Mediterranean occurs at the bottom of the basin while

780-401: A suggestion by Gerhard Doerfer that it was influenced by Turkic baskak ( bāsqāq ), meaning 'agent, tax collector'. Some theories have posited a Turkish or Turkic origin of the word, claiming it derived from başağa ( bāş āghā ), which denoted a 'principal elder brother' or 'prince's elder son' in the pre-Ottoman period. According to etymologist Sevan Nişanyan , the word

858-402: A symbol of military authority when on campaign. Only the sultan himself was entitled to four tails, as sovereign commander in chief . The following military ranks entitled the holder to the style Pasha (lower ranks were styled Bey or merely Effendi ): If a Pasha governed a provincial territory , it could be called a pashaluk after his military title, besides the administrative term for

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936-433: A threat to health—and perhaps even life—for people living on the Black Sea coast. There have been isolated reports of flares on the Black Sea occurring during thunderstorms, possibly caused by lightning igniting combustible gas seeping up from the sea depths. The Black Sea supports an active and dynamic marine ecosystem, dominated by species suited to the brackish , nutrient-rich, conditions. As with all marine food webs,

1014-529: A very thick convective bottom layer. The Black Sea undersea river is a current of particularly saline water flowing through the Bosporus Strait and along the seabed of the Black Sea. The discovery of the river, announced on August 1, 2010, was made by scientists at the University of Leeds and is the first of its kind to be identified. The undersea river stems from salty water spilling through

1092-496: A weaker mixed assemblage of community development below the seasonal thermocline during summer months, and surface-intensified autumn production. This pattern of productivity is augmented by an Emiliania huxleyi bloom during the late spring and summer months. Since the 1960s, rapid industrial expansion along the Black Sea coastline and the construction of a major dam on the Danube have significantly increased annual variability in

1170-443: Is added before the given name, Ottoman titles followed the given name. In contacts with foreign emissaries and representatives, holders of the title Pasha were often referred to as "Your Excellency". The sons of a Pasha were styled Pashazada or Pashazade . In modern Egyptian and (to a lesser extent) Levantine Arabic , it is used as an honorific closer to "Sir" than "Lord", especially by older people. Among Egyptians born since

1248-565: Is bounded by Bulgaria , Georgia , Romania , Russia , Turkey , and Ukraine . The Black Sea is supplied by major rivers, principally the Danube , Dnieper and Dniester . Consequently, while six countries have a coastline on the sea, its drainage basin includes parts of 24 countries in Europe. The Black Sea, not including the Sea of Azov , covers 436,400 km (168,500 sq mi), has

1326-428: Is derived from Turkish beşe ( بچّه 'boy, prince'), which is cognate with Persian bačče ( بچّه ). Some earlier Turkish lexicographers, such as Ahmed Vefik Paşa and Mehmed Salahi, argued it was most likely derived from Turkish başa or Turkish beşe , the latter meaning 'elder brother' and being a title given to some Ottoman provincial officials and janissaries . As first used in western Europe,

1404-590: Is subject to interannual variability. Outside of the Rim Current, numerous quasi-permanent coastal eddies are formed as a result of upwelling around the coastal apron and "wind curl" mechanisms. The intra-annual strength of these features is controlled by seasonal atmospheric and fluvial variations. During the spring, the Batumi eddy forms in the southeastern corner of the sea. Beneath the surface waters—from about 50 to 100 metres (160 to 330 ft)—there exists

1482-460: Is the major mechanism for isolation of the deep water. Below the pycnocline is the Deep Water mass, where salinity increases to 22.3 PSU and temperatures rise to around 8.9 °C (48.0 °F). The hydrochemical environment shifts from oxygenated to anoxic, as bacterial decomposition of sunken biomass utilizes all of the free oxygen. Weak geothermal heating and long residence time create

1560-738: Is the nickname of the Commanding Officer , similar to the term "skipper" in the Anglophone navies. The inclusion criterion is that the person held the rank of "pasha" in his society Black Sea Unrecognised states: The Black Sea is a marginal mediterranean sea lying between Europe and Asia , east of the Balkans , south of the East European Plain , west of the Caucasus , and north of Anatolia . It

1638-477: Is thought the climate conditions established in western Europe mediate the heat and precipitation fluxes reaching Central Europe and Eurasia, regulating the formation of winter cyclones , which are largely responsible for regional precipitation inputs and influence Mediterranean sea surface temperatures (SSTs). The relative strength of these systems also limits the amount of cold air arriving from northern regions during winter. Other influencing factors include

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1716-595: Is through the most active of these connective routes, the Turkish Straits, that the Black Sea joins the World Ocean . During geological periods when this hydrological link was not present, the Black Sea was an endorheic basin , operating independently of the global ocean system (similar to the Caspian Sea today). Currently, the Black Sea water level is relatively high; thus, water is being exchanged with

1794-662: The 1913 Ottoman coup d'état and the subsequent assassination of Mahmud Shevket Pasha . The Three Pashas, all members of the Central Committee of the Committee of Union and Progress , were largely responsible for the Empire's entry into World War I in 1914 on the side of the Central Powers and also largely responsible for the genocide of some one million Armenians . The Turkish public has widely criticised

1872-584: The Egyptian and Sudanese throne , Ibrahim , Abbas , Sa'id , and Isma'il also inherited these titles, with Pasha , and Wāli ceasing to be used in 1867, when the Ottoman Sultan , Abdülaziz officially recognised Isma'il as Khedive. The title Pasha appears originally to have applied exclusively to military commanders and only high ranking family of the sultans, but subsequently it could distinguish any high official, and also unofficial persons whom

1950-841: The Hittites . The Hattic city of Zalpa was "situated probably at or near the estuary of the Marrassantiya River, the modern Kızıl Irmak , on the Black Sea coast." The principal Greek name Póntos Áxeinos is generally accepted to be a rendering of the Iranian word * axšaina- ("dark colored"). Ancient Greek voyagers adopted the name as Á-xe(i)nos , identified with the Greek word áxeinos (inhospitable). The name Πόντος Ἄξεινος Póntos Áxeinos (Inhospitable Sea), first attested in Pindar ( c.  475 BC ),

2028-595: The Kartvelian tribe of Speris or Saspers . Other modern names such as Chyornoye more and Karadeniz (both meaning Black Sea) originated during the 13th century. A 1570 map Asiae Nova Descriptio from Abraham Ortelius 's Theatrum Orbis Terrarum labels the sea Mar Maggior (Great Sea), compare Latin Mare major . English writers of the 18th century often used Euxine Sea ( / ˈ j uː k s ɪ n / or / ˈ j uː k ˌ s aɪ n / ). During

2106-533: The Monument of Liberty in Istanbul and many of Turkey's streets have been renamed in their honour. While the triumvirate consisted of Talaat, Enver, and Cemal, some say Halil Bey was a fourth member of this clique. Historian Hans-Lukas Kieser asserts that this state of rule by the Three Pashas is only accurate for the year 1913–1914, and that Talat Pasha would increasingly become a more central figure within

2184-593: The Ottoman Empire , it was called either Bahr-e Siyah ( Perso-Arabic ) or Karadeniz ( Ottoman Turkish ), both meaning "Black Sea". The International Hydrographic Organization defines the limits of the Black Sea as follows: On the Southwest. The Northeastern limit of the Sea of Marmara [A line joining Cape Rumili with Cape Anatoli (41°13'N)]. In the Kertch Strait . A line joining Cape Takil and Cape Panaghia (45°02'N). The area surrounding

2262-722: The Revolution of 1952 and the abolition of aristocratic titles, it is considered a highly formal way of addressing one's male peers. The Republican Turkish authorities abolished the title circa the 1930s. Although it is no longer an official title, high-ranking officers of the Turkish Armed Forces are often referred to as "pashas" by the Turkish public and media. In the French Navy , "pasha" ( pacha in French)

2340-609: The Strandzha ; Cape Emine , a dwindling of the east end of the Balkan Mountains ; and the Dobruja Plateau considerably farther north. The longest east–west extent is about 1,175 km (730 mi). Important cities along the coast include (clockwise from the Bosporus ) Burgas , Varna , Constanța , Odesa , Sevastopol , Novorossiysk , Sochi , Poti , Batumi , Trabzon and Samsun . The Black Sea has

2418-684: The Sultan had the right to bestow the title of Pasha . Lucy Mary Jane Garnett wrote in the 1904 work Turkish Life in Town and Country that it was the sole "Turkish title which carries with it any definite rank and precedence". It was through this custom that the title ( Egyptian Arabic pronunciation: [ˈbæːʃæ] ) came to be used in Egypt, which was conquered by the Ottomans in 1517. The rise to power in Egypt in 1805 by Muhammad Ali , an Albanian military commander, effectively established Egypt as

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2496-746: The 13th century. In Greece , the historical name "Euxine Sea", which holds a different literal meaning (see below), is still widely used: The Black Sea is one of four seas named in English after common color terms – the others being the Red Sea , the White Sea and the Yellow Sea . The earliest known name of the Black Sea is the Sea of Zalpa, so called by both the Hattians and their conquerors,

2574-460: The 15th century. According to Online Etymology Dictionary , the Turkish pasha or basha was itself from Turkish baş  /  bash ( باش 'head, chief'), itself from Old Persian pati- ('master', from Proto-Indo-European * poti ) and the root of the Persian word shah , شاه . According to Oxford Dictionaries, the Turkish word from which it was borrowed

2652-662: The Aegean Sea. The Bosporus strait connects it to the small Sea of Marmara which in turn is connected to the Aegean Sea via the strait of the Dardanelles . To the north, the Black Sea is connected to the Sea of Azov by the Kerch Strait . The water level has varied significantly over geological time. Due to these variations in the water level in the basin, the surrounding shelf and associated aprons have sometimes been dry land. At certain critical water levels, connections with surrounding water bodies can become established. It

2730-582: The Black Sea Depression they are terrigenous non-carbonate silts , and at the foot of the continental slope turbidite sediments. The Black Sea is the world's largest body of water with a meromictic basin. The deep waters do not mix with the upper layers of water that receive oxygen from the atmosphere. As a result, over 90% of the deeper Black Sea volume is anoxic water. The Black Sea's circulation patterns are primarily controlled by basin topography and fluvial inputs, which result in

2808-544: The Black Sea belong to Bulgaria, Romania, Turkey, and Ukraine: Short-term climatic variation in the Black Sea region is significantly influenced by the operation of the North Atlantic oscillation , the climatic mechanisms resulting from the interaction between the north Atlantic and mid-latitude air masses. While the exact mechanisms causing the North Atlantic Oscillation remain unclear, it

2886-585: The Black Sea features a range of trophic groups, with autotrophic algae, including diatoms and dinoflagellates , acting as primary producers. The fluvial systems draining Eurasia and central Europe introduce large volumes of sediment and dissolved nutrients into the Black Sea, but the distribution of these nutrients is controlled by the degree of physiochemical stratification, which is, in turn, dictated by seasonal physiographic development. During winter, strong wind promotes convective overturning and upwelling of nutrients, while high summer temperatures result in

2964-632: The Black Sea is commonly referred to as the Black Sea Region . Its northern part lies within the Chernozem belt (black soil belt) which goes from eastern Croatia ( Slavonia ), along the Danube (northern Serbia, northern Bulgaria ( Danubian Plain ) and southern Romania ( Wallachian Plain ) to northeast Ukraine and further across the Central Black Earth Region and southern Russia into Siberia . The littoral zone of

3042-828: The Black Sea is often referred to as the Pontic littoral or Pontic zone . The largest bays of the Black Sea are Karkinit Bay in Ukraine; the Gulf of Burgas in Bulgaria; Dnieprovski Bay and Dniestrovski Bay, both in Ukraine; and Sinop Bay and Samsun Bay, both in Turkey. The largest rivers flowing into the Black Sea are: These rivers and their tributaries comprise a 2-million km (0.77-million sq mi) Black Sea drainage basin that covers wholly or partially 24 countries: Unrecognised states: Some islands in

3120-402: The Black Sea underneath the less dense, fresher water that flows out of the Black Sea. This creates a significant and permanent layer of deep water that does not drain or mix and is therefore anoxic . This anoxic layer is responsible for the preservation of ancient shipwrecks which have been found in the Black Sea, which ultimately drains into the Mediterranean Sea , via the Turkish Straits and

3198-525: The Bosporus Strait from the Mediterranean Sea into the Black Sea, where the water has a lower salt content. Because of the anoxic water at depth, organic matter, including anthropogenic artifacts such as boat hulls, are well preserved. During periods of high surface productivity, short-lived algal blooms form organic rich layers known as sapropels . Scientists have reported an annual phytoplankton bloom that can be seen in many NASA images of

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3276-483: The Bosporus is located at 36.5 m (120 ft) below present sea level (deepest spot of the shallowest cross-section in the Bosporus, located in front of Dolmabahçe Palace ) and has a wet section of around 38,000 m (410,000 sq ft). Inflow and outflow current speeds are averaged around 0.3 to 0.4 m/s (1.0 to 1.3 ft/s), but much higher speeds are found locally, inducing significant turbulence and vertical shear. This allows for turbulent mixing of

3354-572: The Committee of Union and Progress, a progressive organisation that they eventually came to control and transform into a primarily Pan-Turkist political party. The Three Pashas were the principal players in the Ottoman–German Alliance and the Ottoman Empire's entry into World War I on the side of the Central Powers . One of the three, Ahmed Djemal, was opposed to an alliance with Germany, and French and Russian diplomacy attempted to keep

3432-407: The Mediterranean. The Black Sea undersea river is a current of particularly saline water flowing through the Bosporus Strait and along the seabed of the Black Sea, the first of its kind discovered. Current names of the sea are usually equivalents of the English name "Black Sea", including these given in the countries bordering the sea: Such names have not yet been shown conclusively to predate

3510-674: The Mid-Black Sea High, which includes the Andrusov Ridge, Tetyaev High, and Archangelsky High, extending south from the Crimean Peninsula . The basin includes two distinct relict back-arc basins which were initiated by the splitting of an Albian volcanic arc and the subduction of both the Paleo - and Neo- Tethys oceans, but the timings of these events remain uncertain. Arc volcanism and extension occurred as

3588-448: The N:P:Si ratio in the basin. Coastal areas, accordingly, have seen an increase in the frequency of monospecific phytoplankton blooms, with diatom-bloom frequency increasing by a factor of 2.5 and non-diatom bloom frequency increasing by a factor of 6. The non-diatoms, such as the prymnesiophytes Emiliania huxleyi (coccolithophore), Chromulina sp., and the Euglenophyte Eutreptia lanowii , can out-compete diatom species because of

3666-454: The Neo-Tethys Ocean subducted under the southern margin of Laurasia during the Mesozoic . Uplift and compressional deformation took place as the Neotethys continued to close. Seismic surveys indicate that rifting began in the Western Black Sea in the Barremian and Aptian followed by the formation of oceanic crust 20 million years later in the Santonian . Since its initiation, compressional tectonic environments led to subsidence in

3744-477: The Ottoman Empire out of the war; but Germany was agitating for a commitment. Finally, on 29 October, the point of no return was reached when Admiral Wilhelm Souchon took SMS  Goeben , SMS  Breslau , and a squadron of Ottoman warships into the Black Sea (see pursuit of Goeben and Breslau ) and raided the Russian ports of Odessa , Sevastopol , and Theodosia . It was claimed that Ahmed Cemal agreed in early October 1914 to authorize Souchon to launch

3822-464: The Rim Current. The Rim Current has a maximum velocity of about 50–100 cm/s (20–39 in/s). Within this feature, two smaller cyclonic gyres operate, occupying the eastern and western sectors of the basin. The Eastern and Western Gyres are well-organized systems in the winter but dissipate into a series of interconnected eddies in the summer and autumn. Mesoscale activity in the peripheral flow becomes more pronounced during these warmer seasons and

3900-454: The Three Pashas and Halil Bey, personalities such as Dr. Nazım , Bahaeddin Şakir , Mehmed Reşid , Ziya Gökalp , and the party's secretary general Midhat Şükrü also dominated the Central Committee without formal positions in the Ottoman government. Western scholars hold that after the 1913 Ottoman coup d'état, these three men became the de facto rulers of the Ottoman Empire until its dissolution following World War I. They were members of

3978-410: The Three Pashas for drawing the Ottoman Empire into World War I and its subsequent defeat. All three met violent deaths after the war— Talaat and Cemal were assassinated by the Armenian Revolutionary Federation as part of Operation Nemesis , whilst Enver died leading the Basmachi Revolt near Dushanbe , present-day Tajikistan . After their deaths, Talaat and Enver's remains have been reburied at

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4056-403: The Three Pashas for having caused the Ottoman Empire's entrance into World War I, and the subsequent collapse of the state. As early as 1912, Atatürk (then just Mustafa Kemal) had severed his ties to the Three Pashas' Committee of Union and Progress, dissatisfied with the direction that they had taken the party, as well as developing a rivalry with Enver Pasha. Although Enver later attempted to join

4134-424: The Turkish War of Independence, the Angora (Ankara) government under Atatürk blocked his return to Turkey and his efforts to join the war effort. Pasha The English word pasha comes from Turkish pasha ( pāşā ; also basha ( bāşā )). The Oxford English Dictionary attributes the origin of the English borrowing to the mid-17th century. The etymology of the Turkish word itself has been

4212-463: The Union and Progress party state, especially once he also became Grand Vizier in 1917. Erik-Jan Zürcher and Taner Akçam claims that two factions dominated the Ottoman Empire during the Great War, a military camp led by Enver and the party/civilian camp led by Talaat. Alternatively, it would also be accurate to call the Unionist regime a clique or even an oligarchy , as many prominent Unionists held some form of de jure or de facto power. Other than

4290-425: The basin, interspersed with extensional phases resulting in large-scale volcanism and numerous orogenies , causing the uplift of the Greater Caucasus , Pontides , southern Crimean Peninsula and Balkanides mountain ranges. During the Messinian salinity crisis in the neighboring Mediterranean Sea , water levels fell but without drying up the sea. The collision between the Eurasian and African plates and

4368-412: The centre of the Black Sea reaches a maximum depth of 2,212 metres (7,257.22 feet) just south of Yalta on the Crimean Peninsula . The Paleo- Euxinian is described by the accumulation of eolian silt deposits (related to the Riss glaciation ) and the lowering of sea levels ( MIS 6, 8 and 10). The Karangat marine transgression occurred during the Eemian Interglacial (MIS 5e). This may have been

4446-436: The court desired to honour. It was also part of the official style of the Kapudan Pasha (Grand Admiral of the Ottoman fleet). Pashas ranked above Beys and Aghas , but below Khedives and Viziers . Three grades of Pasha existed, distinguished by the number of horse tails (three, two, and one respectively; a symbol of Turco-Mongol tradition) or peacock tails that the bearers were entitled to display on their standard as

4524-401: The dark color of the water or climatic conditions. Some scholars understand the name to be derived from a system of colour symbolism representing the cardinal directions , with black or dark for north, red for south, white for west, and green or light blue for east. Hence, "Black Sea" meant "Northern Sea". According to this scheme, the name could only have originated with a people living between

4602-441: The highest sea levels reached in the late Pleistocene . Based on this some scholars have suggested that the Crimean Peninsula was isolated from the mainland by a shallow strait during the Eemian Interglacial. The Neoeuxinian transgression began with an inflow of waters from the Caspian Sea . Neoeuxinian deposits are found in the Black Sea below −20 m (−66 ft) water depth in three layers. The upper layers correspond with

4680-417: The history of the country." As an honorific, the title pasha was an aristocratic title and could be hereditary or non-hereditary, stipulated in the firman ( patent of nobility ) issued by the Sultan carrying the tughra (imperial seal). The title did not bestow rank or title to the wife nor was any religious leader elevated to the title. In contrast to western nobility titles, where the title normally

4758-518: The late 1980s. Additionally, an alien species—the warty comb jelly ( Mnemiopsis leidyi )—established itself in the basin, exploding from a few individuals to an estimated biomass of one billion metric tons. The change in species composition in Black Sea waters also has consequences for hydrochemistry, as calcium-producing coccolithophores influence salinity and pH, although these ramifications have yet to be fully quantified. In central Black Sea waters, silicon levels also reduced significantly, due to

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4836-407: The limited availability of silicon, a necessary constituent of diatom frustules. As a consequence of these blooms, benthic macrophyte populations were deprived of light, while anoxia caused mass mortality in marine animals. Overfishing during the 1970s further compounded the decline in macrophytes, while the invasive ctenophore Mnemiopsis reduced the biomass of copepods and other zooplankton in

4914-431: The north of the basin is up to 190 km (120 mi) wide and features a shallow apron with gradients between 1:40 and 1:1000. The southern edge around Turkey and the eastern edge around Georgia , however, are typified by a narrow shelf that rarely exceeds 20 km (12 mi) in width and a steep apron that is typically 1:40 gradient with numerous submarine canyons and channel extensions. The Euxine abyssal plain in

4992-434: The northern (black) and southern (red) seas : this points to the Achaemenids (550–330 BC). In the Greater Bundahishn , a Middle Persian Zoroastrian scripture, the Black Sea is called Siyābun . In the tenth-century Persian geography book Hudud al-'Alam , the Black Sea is called Georgian Sea ( daryā-yi Gurz ). The Georgian Chronicles use the name zğua sperisa ზღუა სპერისა (Sea of Speri) after

5070-454: The outflow of fresher Black Sea surface-water into the Sea of Marmara occurs near the surface. According to Gregg (2002), the outflow is 16,000 cubic metres per second (570,000 cubic feet per second) or around 500 cubic kilometres per year (120 cubic miles per year), and the inflow is 11,000 m /s (390,000 cu ft/s) or around 350 km /a (84 cu mi/a). The following water budget can be estimated: The southern sill of

5148-448: The peak of the Khvalinian transgression, on the shelf shallow-water sands and coquina mixed with silty sands and brackish-water fauna, and inside the Black Sea Depression hydrotroilite silts. The middle layers on the shelf are sands with brackish-water mollusc shells. Of continental origin, the lower level on the shelf is mostly alluvial sands with pebbles, mixed with less common lacustrine silts and freshwater mollusc shells . Inside

5226-488: The photic zone, enhancing productivity. In total, the Black Sea's biodiversity contains around one-third of the Mediterranean's and is experiencing natural and artificial invasions or "Mediterranizations". The main phytoplankton groups present in the Black Sea are dinoflagellates , diatoms , coccolithophores and cyanobacteria . Generally, the annual cycle of phytoplankton development comprises significant diatom and dinoflagellate-dominated spring production, followed by

5304-437: The region. As a result of these characteristics the Black Sea has gained interest from the field of marine archaeology , as ancient shipwrecks in excellent states of preservation have been discovered, such as the Byzantine wreck Sinop D , located in the anoxic layer off the coast of Sinop, Turkey . Modelling shows that, in the event of an asteroid impact on the Black Sea, the release of hydrogen sulfide clouds would pose

5382-402: The regional topography , as depressions and storm systems arriving from the Mediterranean are funneled through the low land around the Bosporus, with the Pontic and Caucasus mountain ranges acting as waveguides, limiting the speed and paths of cyclones passing through the region. The Black Sea is divided into two depositional basins—the Western Black Sea and Eastern Black Sea—separated by

5460-419: The sea was called the "Inhospitable Sea Πόντος Ἄξεινος Póntos Áxeinos by the inhabitants of the Pontus region of the southern shoreline before Greek colonisation due to its difficult navigation and hostile barbarian natives (7.3.6), and that the name was changed to "hospitable" after the Milesians colonised the region, bringing it into the Greek world. Popular supposition derives "Black Sea" from

5538-434: The sentences were not carried out. Talaat and Cemal were assassinated in exile in 1921 and 1922 by Armenian revolutionaries; Enver died in a Red Army ambush in Tajikistan in 1922 while trying to lead an anti-Russian insurrection . After World War I and the ensuing Turkish War of Independence , much of the population of the newly established Republic of Turkey as well its founder Mustafa Kemal Atatürk widely criticised

5616-708: The service of the Ottoman Empire, or of the Egyptian Khedivate (later Sultanate , and Kingdom in turn), e.g. Hobart Pasha . In an Egyptian context, the Abaza Family is known as "the family of the pashas" for having produced the largest number of nobles holding this title under the Muhammad Ali dynasty and was noted in Egyptian media in 2014 as one of the main "families that rule Egypt" to this day, and as "deeply rooted in Egyptian society and… in

5694-618: The title appeared in writing with an initial b . The English forms bashaw , bassaw , bucha , etc., general in the 16th and 17th century, derive through the medieval Latin and Italian word bassa . Due to the Ottoman presence in the Arab world , the title became used frequently in Arabic , though pronounced basha due to the absence of the /p/ sound in Arabic. Within the Ottoman Empire ,

5772-408: The two layers. Surface water leaves the Black Sea with a salinity of 17 practical salinity units (PSU) and reaches the Mediterranean with a salinity of 34 PSU. Likewise, an inflow of the Mediterranean with salinity 38.5 PSU experiences a decrease to about 34 PSU. Mean surface circulation is cyclonic ; waters around the perimeter of the Black Sea circulate in a basin-wide shelfbreak gyre known as

5850-553: The type of jurisdiction, e.g. eyalet , vilayet/walayah . Both beylerbeys (governors-general) and valis/wālis (the most common type of Governor) were entitled to the style of Pasha (typically with two tails). The word pashalik designated any province or other jurisdiction of a Pasha, such as the Pasha or Bashaw of Tripoli . Ottoman and Egyptian authorities conferred the title upon both Muslims and Christians without distinction. They also frequently gave it to foreigners in

5928-599: The westward escape of the Anatolian block along the North Anatolian and East Anatolian faults dictates the current tectonic regime, which features enhanced subsidence in the Black Sea basin and significant volcanic activity in the Anatolian region. These geological mechanisms, in the long term, have caused the periodic isolations of the Black Sea from the rest of the global ocean system. The large shelf to

6006-510: Was considered an ill omen and was euphemized to its opposite, Εὔξεινος Πόντος Eúxeinos Póntos (Hospitable Sea), also first attested in Pindar. This became the commonly used designation in Greek, although in mythological contexts the "true" name Póntos Áxeinos remained favoured. Strabo 's Geographica (1.2.10) reports that in antiquity, the Black Sea was often simply called "the Sea" ( ὁ πόντος ho Pontos ). He thought that

6084-582: Was formed as a result of the combination of the Pahlavi words pati- 'lord', and shah ( 𐭬𐭫𐭪𐭠 ). According to Josef W. Meri and Jere L. Bacharach , the word is "more than likely derived from the Persian Padishah " ( پادشاه ). The same view is held by Nicholas Ostler , who mentions that the word was formed as a shortening of the Persian word padishah . Jean Deny also attributed its origin to padishah , while repeating

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