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70-601: It was defined in well Imperial Herald 1-31-1-20W2M by the Lower Paleozoic Names and Correlations Committee of the Saskatchewan Geological Society in 1958. The Herald Formation is composed of dolomitic limestone and dolomite , which can be microcrystalline, argillaceous or microlaminated. In the centre of the basin, it is represented by anhydrite . The Herald Formation reaches a maximum thickness of 38 metres (120 ft) in

140-709: A Portuguese force led by commander Antonio Correia invaded Bahrain to take control of the wealth created by its pearl industry. On April 29, 1602, Shāh Abbās , the Persian emperor of the Safavid Persian Empire , expelled the Portuguese from Bahrain, and that date is commemorated as National Persian Gulf day in Iran . With the support of the British fleet, in 1622 'Abbās took the island of Hormuz from

210-569: A combination of fresh and salt water for growth, and act as nurseries for many crabs, small fish, and insects; these fish and insects are the source of food for many of the marine birds that feed on them. Mangroves are a diverse group of shrubs and trees belonging to the genus Avicennia or Rhizophora that flourish in the salt water shallows of the Persian Gulf, and are the most important habitats for small crustaceans that dwell in them. They are as crucial an indicator of biological health on

280-642: A few coral reefs . Compared to the Red Sea, the coral reefs in the Persian Gulf are relatively few and far between. This is primarily connected to the influx of major rivers, especially the Shatt al-Arab (Euphrates and Tigris), which carry large amounts of sediment (most reef-building corals require strong light) and causes relatively large variations in temperature and salinity (corals in general are poorly suited to large variations). Nevertheless, coral reefs have been found along sections of coast of all countries in

350-605: A giant field across the territorial median line (North Field in the Qatari sector; South Pars Field in the Iranian sector). Using this gas, Qatar has built up a substantial liquefied natural gas (LNG) and petrochemical industry. In 2002, the Persian Gulf nations of Bahrain, Iran, Iraq, Kuwait, Qatar, Saudi Arabia, and the UAE produced about 25% of the world's oil, held nearly two-thirds of the world's crude oil reserves , and about 35% of

420-466: A more stable phase (such as partially ordered dolomite) during periodical intervals of dissolution and re-precipitation. The general principle governing the course of this irreversible geochemical reaction has been coined "breaking Ostwald's step rule ". High diagenetic temperatures, such as those of groundwater flowing along deeply rooted fault systems affecting some sedimentary successions or deeply buried limestone rocks allocate dolomitization . But

490-492: A pH buffer and as a magnesium source. Pastures can be limed with dolomitic lime to raise their pH and where there is a magnesium deficiency. Dolomite is also used as the substrate in marine (saltwater) aquariums to help buffer changes in the pH of the water. Calcined dolomite is also used as a catalyst for destruction of tar in the gasification of biomass at high temperature. Particle physics researchers like to build particle detectors under layers of dolomite to enable

560-470: Is a diverse cradle for many species who depend on each other for survival. However, the Persian Gulf is not as biologically diverse as the Red Sea . Overall, the wildlife of the Persian Gulf is endangered from both global factors, and regional, local negligence. Most pollution is from ships; land generated pollution counts as the second most common source of pollution. Along the mediterranean regions of

630-412: Is a double carbonate, having an alternating structural arrangement of calcium and magnesium ions. Unless it is in fine powder form, it does not rapidly dissolve or effervesce (fizz) in cold dilute hydrochloric acid as calcite does. Crystal twinning is common. Solid solution exists between dolomite, the iron -dominant ankerite and the manganese -dominant kutnohorite . Small amounts of iron in

700-452: Is an anhydrous carbonate mineral composed of calcium magnesium carbonate , ideally CaMg(CO 3 ) 2 . The term is also used for a sedimentary carbonate rock composed mostly of the mineral dolomite (see Dolomite (rock) ). An alternative name sometimes used for the dolomitic rock type is dolostone. As stated by Nicolas-Théodore de Saussure the mineral dolomite was probably first described by Carl Linnaeus in 1768. In 1791, it

770-465: Is an abundant rock-forming mineral are important as aquifers and contribute to karst terrain formation. Modern dolomite formation has been found to occur under anaerobic conditions in supersaturated saline lagoons such as those at the Rio de Janeiro coast of Brazil , namely, Lagoa Vermelha and Brejo do Espinho. There are many other localities where modern dolomite forms, notably along sabkhas in

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840-530: Is an important petroleum reservoir rock, and serves as the host rock for large strata-bound Mississippi Valley-Type (MVT) ore deposits of base metals such as lead , zinc , and copper . Where calcite limestone is uncommon or too costly, dolomite is sometimes used in its place as a flux for the smelting of iron and steel. Large quantities of processed dolomite are used in the production of float glass . In horticulture , dolomite and dolomitic limestone are added to soils and soilless potting mixes as

910-470: Is destroyed, or occupied by man-made structures. This has had a negative impact on the crustaceans that rely on the mangrove, and in turn on the species that feed on them. The Persian Gulf and its coastal areas are the world's largest single source of petroleum, and related industries dominate the region. Safaniya Oil Field , the world's largest offshore oilfield , is located in the Persian Gulf. Large gas finds have also been made, with Qatar and Iran sharing

980-498: Is home to many islands such as Bahrain, an Arab state. Geographically, the biggest island in the Persian Gulf is Qeshm island , belonging to Iran and located in the Strait of Hormuz . Other significant islands in the Persian Gulf include Greater Tunb , Lesser Tunb and Kish administered by Iran, Bubiyan administered by Kuwait, Tarout administered by Saudi Arabia, and Dalma administered by UAE. In recent years, there has also been

1050-502: Is likely result from complexation of both magnesium and calcium by carboxylic acids comprising EPS. Vast deposits of dolomite are present in the geological record, but the mineral is relatively rare in modern environments. Reproducible, inorganic low-temperature syntheses of dolomite are yet to be performed. Usually, the initial inorganic precipitation of a metastable "precursor" (such as magnesium calcite) can easily be achieved. The precursor phase will theoretically change gradually into

1120-430: Is negatively affected by new developments along the Persian Gulf coastline, particularly the construction of artificial islands by Arab states and pollution from oil spills caused during the "Persian Gulf war" and various other natural and artificial causes. Uncontrolled hunting has also had a negative impact on the survival of dugongs. After Australian waters, which are estimated to contain some 80,000 dugong inhabitants,

1190-408: Is now the Iranian province of Bushehr , is an example of such commercial port. Siraf, was also significant in that it had a flourishing commercial trade with China by the fourth century, having first established connection with the far east in 185 AD. Portuguese influence in the Persian Gulf lasted for 250 years; however, since the beginning of the 16th century, Portuguese dominance contended with

1260-620: Is still a deficit of 416 cubic kilometres (100 cu mi) per year. This difference is supplied by currents at the Strait of Hormuz . The water from the Persian Gulf has a higher salinity, and therefore exits from the bottom of the Strait, while ocean water with less salinity flows in through the top. Another study revealed the following numbers for water exchanges for the Persian Gulf: evaporation = –1.84 m (6.0 ft)/year, precipitation = 0.08 m (0.26 ft)/year, inflow from

1330-517: Is used by the International Hydrographic Organization . The dispute in naming has become especially prevalent since the 1960s. Rivalry between Iran and some Arab states, along with the emergence of pan-Arabism and Arab nationalism , has seen the name "Arabian Gulf" become predominant in most Arab countries. Names beyond these two have also been applied to or proposed for this body of water. The region of

1400-814: The Al Qasimi tribe. This led to the British mounting the Persian Gulf campaign of 1819 . The campaign led to the signing of the General Maritime Treaty of 1820 between the British and the Sheikhs of what was then known as the ' Pirate Coast '. From 1763 until 1971, the British Empire maintained varying degrees of political control over some of the Persian Gulf states, including the United Arab Emirates (originally called

1470-604: The Arabian Plate under the Zagros Mountains . The current flooding of the basin started 15,000 years ago due to rising sea levels of the Holocene glacial retreat . The International Hydrographic Organization defines the Persian Gulf's southern limit as "The Northwestern limit of Gulf of Oman". This limit is defined as "A line joining Ràs Limah (25°57'N) on the coast of Arabia and Ràs al Kuh (25°48'N) on

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1540-961: The Lake Alma area. The Herald Formation is disconformably overlain by the Stony Mountain Formation and conformably overlays the Yeoman Formation . It can be correlated with the Fort Garry Member of the Red River Formation in Manitoba and in the Williston Basin . In south-eastern Saskatchewan , the formation is divided in three units, corresponding to three sedimentation cycles: Dolomite (mineral) Dolomite ( / ˈ d ɒ l . ə ˌ m aɪ t , ˈ d oʊ . l ə -/ )

1610-563: The Nile in the west, as well as Sind waterway, in India. The Achaemenid high naval command had established major naval bases located along Shatt al-Arab river, Bahrain, Oman, and Yemen. The Persian fleet would soon not only be used for peacekeeping purposes along the Shatt al-Arab but would also open the door to trade with India via Persian Gulf. Following the fall of Achaemenid Empire, and after

1680-486: The Persian Gulf , but also in sedimentary basins bearing gas hydrates and hypersaline lakes. It is often thought that dolomite nucleates with the help of sulfate-reducing bacteria (e.g. Desulfovibrio brasiliensis ), but other microbial metabolisms have been also found to mediate in dolomite formation. In general, low-temperature dolomite may occur in natural supersaturated environments rich in extracellular polymeric substances (EPS) and microbial cell surfaces. This

1750-477: The Strait of Hormuz . The Shatt al-Arab river delta forms the northwest shoreline. The Persian Gulf has many fishing grounds, extensive reefs (mostly rocky, but also coral ), and abundant pearl oysters , however its ecology has been damaged by industrialization and oil spills . The Persian Gulf is in the Persian Gulf Basin , which is of Cenozoic origin and related to the subduction of

1820-541: The Trucial States ) and at various times Bahrain, Kuwait, Oman, and Qatar through the British Residency of the Persian Gulf . The Persian Gulf was a battlefield of the 1980–1988 Iran–Iraq War , in which each side attacked the other's oil tankers . It is the namesake of the 1991 Gulf War , the largely air- and land-based conflict that followed Iraq 's invasion of Kuwait . The United States' role in

1890-610: The United Arab Emirates ; Saudi Arabia; Qatar , on a peninsula off the Saudi coast; Bahrain , an island nation; Kuwait ; and Iraq in the northwest. Various small islands also lie within the Persian Gulf, some of which are the subject of territorial disputes between the states in the region. Exclusive economic zones in the Persian Gulf: Countries by coastline length : The Persian Gulf

1960-450: The collared kingfishers were raised by conservationists over real estate development by the United Arab Emirates and Oman. Estimates from 2006 showed that only three viable nesting sites were available for this ancient bird, one located 80 miles (129 km) from Dubai, and two smaller sites in Oman. Such real estate expansion could prove devastating to this subspecies. A UN plan to protect

2030-627: The " Persian Corridor ". Britain utilized the Persian Gulf as the entry point for the supply chain in order to make use of the Trans-Iranian Railway . The Persian Gulf therefore became a critical maritime path through which the Allies transported equipment to Soviet Union against the Nazi invasion . The piracy in the Persian Gulf was prevalent until the 19th century. Many of the most notable historical instances of piracy were perpetrated by

2100-571: The Arabian Sea, including the Persian Gulf, the Red Sea , the Gulf of Kutch , the Gulf of Suez , the Gulf of Aqaba , the Gulf of Aden , and the Gulf of Oman , dolphins and finless porpoises are the most common marine mammals in the waters, while larger whales and orcas are rarer today. Historically, whales had been abundant in the Persian Gulf before commercial hunts wiped them out. Whales were reduced even further by illegal mass hunts by

2170-467: The Gulf of Aqaba), omura's whale , minke whale , and orca also swim into the Persian Gulf, while many other large species such as blue whale , sei , and sperm whales were once migrants into the Gulf of Oman and off the coasts in deeper waters, and still migrate into the Red Sea, but mainly in deeper waters of outer seas. In 2017, waters of the Persian Gulf along Abu Dhabi were revealed to hold

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2240-714: The Lakhum tribe , who lived in what is now Yemen, migrated north and founded the Lakhmid Kingdom along the southern coast. Occasional ancient battles took place along the Persian Gulf coastlines, between the Sassanid Persian empire and the Lakhmid Kingdom, the most prominent of which was the invasion led by Shapur II against the Lakhmids, leading to Lakhmids' defeat, and advancement into Arabia, along

2310-628: The Middle East adjacent to the Gulf. The world's oldest known civilization ( Sumer ) developed along the Persian Gulf and southern Mesopotamia . The oldest evidence in the world for seagoing vessels has been found at H3 in Kuwait, dating to the mid-sixth millennium BC, when the Gulf was part of an extensive trade network that involved the Ubaid settlements in Mesopotamia and communities along

2380-452: The Middle East are located in this region. The wildlife of the Persian Gulf is diverse, and entirely unique because of the Persian Gulf's geographic distribution and its isolation from the international waters only breached by the narrow Strait of Hormuz . The Persian Gulf has hosted some of the most magnificent marine fauna and flora, some of which are near extirpation or at serious environmental risk. From corals, to dugongs , Persian Gulf

2450-442: The Persian Gulf by the United Arab Emirates and Oman also raised concerns that habitats of species such as the hawksbill turtle , greater flamingo , and booted warbler may be destroyed. The dolphins that frequent the Persian Gulf in northern waters around Iran are also at risk. Recent statistics and observations show that dolphins are at danger of entrapment in purse seine fishing nets and exposure to chemical pollutants; perhaps

2520-496: The Persian Gulf grew in the second half of the 20th century. On July 3, 1988, Iran Air Flight 655 was shot down by the U.S. military (which had mistaken the Airbus A300 operating the flight for an Iranian F-14 Tomcat ) while it was flying over the Persian Gulf, killing all 290 people on board. The United Kingdom maintains a profile in the region; in 2006 alone, over 1 million British nationals visited Dubai . In 2018,

2590-626: The Persian Gulf has been inhabited since the Paleolithic . During most of the Last Glacial Period (115,000–11,700 years Before Present ), due to lowered sea levels (reaching around 125 metres (410 ft) metres below present values during the Last Glacial Maximum ) combined with the shallow depth of the Gulf (on average around 35 metres (115 ft) and at max around 100 metres (330 ft) metres depth) most of

2660-422: The Persian Gulf in recent years. Aside from direct damage to the coral, the construction waste creates "traps" for marine life in which they are trapped and die. The result has been a dwindling population of the coral, and as a result a decrease in number of species that rely on the corals for their survival. A great example of this symbiosis are the mangroves in the Persian Gulf, which require tidal flow and

2730-529: The Persian Gulf was called Pūdīg , which comes from Avestan : Pūitika , lit.   'cleansing', a name mentioned in Bundahishn . The body of water is historically and internationally known as the Persian Gulf. Arab governments refer to it as the Arabian Gulf or The Gulf, and other countries and organizations have begun using Arabian Gulf. The name Gulf of Iran (Persian Gulf)

2800-635: The Persian Gulf was called many different names. The Assyrians called it the "Bitter Sea". In 550 BC, the Achaemenid Empire established the first ancient empire in Persis ( Pars , or modern Fars , also known as Persia), in the southwestern region of the Iranian plateau . Consequently, in the Greek sources, the body of water that bordered this province came to be known as the "Persian Gulf". In

2870-455: The Persian Gulf was exposed as dry land, forming a flat floodplain where a number of rivers converged. This region may have served as an environmental refuge for early humans during periodic hyperarid climate oscillations. The modern marine Gulf was formed when sea level rose during the early Holocene , from around 12,000 to 6,000 years ago. The flooding of the Gulf may have stimulated the development of Neolithic farming cultures in regions of

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2940-448: The Persian Gulf. Corals are vital ecosystems that support multitude of marine species, and whose health directly reflects the health of the Persian Gulf. Recent years have seen a drastic decline in the coral population in the Persian Gulf, partially owing to global warming but mostly to irresponsible dumping by Arab states like the UAE and Bahrain. Construction garbage such as tires, cement, and chemical by products have found their way to

3010-580: The Persian Gulf. Persian naval forces laid the foundation for a strong Persian maritime presence in Persian Gulf, that started with Darius I and existed until the arrival of the British East India Company , and the Royal Navy by mid-19th century AD. Persians were not only stationed on islands of the Persian Gulf, but also had ships often of 100 to 200 capacity patrolling empire's various rivers including Shatt-al-Arab , Tigris , and

3080-441: The Portuguese; much of the trade was diverted to the town of Bandar 'Abbās , which he had taken from the Portuguese in 1615 and had named after himself. The Persian Gulf was therefore opened to a flourishing commerce with the Portuguese, Dutch, French, Spanish and the British merchants, who were granted particular privileges. The Ottoman Empire reasserted itself into Eastern Arabia in 1871. Under military and political pressure from

3150-473: The Soviet Union and Japan in the 1960s and 1970s. Along with Bryde's whales , these once common residents can still can be seen in deeper marginal seas such as Gulf of Aden, Israel coasts, and in the Strait of Hormuz . Other species such as the critically endangered Arabian humpback whale , (also historically common in Gulf of Aden and increasingly sighted in the Red Sea since 2006, including in

3220-426: The Strait = 33.66 m (110.4 ft)/year, outflow from the Strait = -32.11 m (105.3 ft)/year, and the balance is 0 m (0 ft)/year. Data from different 3D computational fluid mechanics models, typically with spatial resolution of 3 kilometres (1.9 mi) and depth each element equal to 1–10 metres (3.3–32.8 ft) are predominantly used in computer models. Before being given its present name,

3290-473: The Strait of Hormuz. Writing the water balance budget for the Persian Gulf, the inputs are river discharges from Iran and Iraq (estimated to be 2,000 cubic metres (71,000 cu ft) per second), as well as precipitation over the sea which is around 180 mm (7.1 in)/year in Qeshm Island . The evaporation of the sea is high, so that after considering river discharge and rain contributions, there

3360-588: The UK opened a permanent military base, HMS  Jufair , in the Persian Gulf, the first since it withdrew from East of Suez in 1971 and is developing a support facility in Oman. Eight nations have coasts along the Persian Gulf: Bahrain , Iran , Iraq , Kuwait , Oman , Qatar , Saudi Arabia , and the United Arab Emirates . The Persian gulf's strategic location has made it an ideal place for human development over time. Today, many major cities of

3430-677: The addition of artificial islands for tourist attractions , such as The World Islands in Dubai and The Pearl Island in Doha . Persian Gulf islands are often also historically significant, having been used in the past by colonial powers such as the Portuguese and the British in their trade or as acquisitions for their empires. The Persian Gulf is connected to the Indian Ocean through

3500-549: The book of Nearchus known as Indikê (300 BC), the word "Persikon kolpos" is mentioned for multiple times meaning "Persian gulf". During the years 550 to 330 BC, coinciding with the sovereignty of the Achaemenid Persian Empire over the Middle East area, especially the whole part of the Persian Gulf and some parts of the Arabian Peninsula , the name of "Persian ( Pars ) Sea" is widely found in

3570-561: The coast of Iran (Persia)". This inland sea of some 251,000 square kilometres (96,912 sq mi) is connected to the Gulf of Oman in the east by the Strait of Hormuz ; and its western end is marked by the major river delta of the Shatt al-Arab , which carries the waters of the Euphrates and the Tigris . In Iran , this is called "Arvand Rud" (lit. Swift River ). Its length is 989 kilometres (615 miles), with Iran covering most of

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3640-712: The compiled written texts. At the same period, there is the inscription and engraving of Darius the Great, which belongs to the fifth century BC: King Darius says: I ordered to dig this ( Canal of the Pharaohs ) canal from the river that is called Nile ( Pirâva ) and flows in Egypt ( Mudrâyâ ), to the sea that begins in Persia ( Pârsa ). Therefore, when this canal had been dug as I had ordered, ships went from Egypt through this canal to Persia, as I had intended. In Sassanian times,

3710-428: The detectors to detect the highest possible number of exotic particles. Because dolomite contains relatively minor quantities of radioactive materials, it can insulate against interference from cosmic rays without adding to background radiation levels. In addition to being an industrial mineral, dolomite is highly valued by collectors and museums when it forms large, transparent crystals. The specimens that appear in

3780-462: The entire Gulf coast. For most of the early history of the settlements in the Persian Gulf, the southern shores were ruled by a series of nomadic tribes. During the end of the fourth millennium BC , the southern part of the Persian Gulf was dominated by the Dilmun civilization. For a long time, the most important settlement on the southern coast of the Persian Gulf was Gerrha . In the second century

3850-733: The fall of the Parthian Empire , the Sassanid Empire ruled the northern half and at times the southern half of the Persian Gulf. The Persian Gulf, along with the Silk Road , were important trade routes in the Sassanid Empire. Many of the trading ports of the Persian empires were located in or around Persian Gulf. Siraf , an ancient Sassanid port that was located on the northern shore of the Persian Gulf, located in what

3920-607: The governor of the Ottoman Vilayet of Baghdad , Midhat Pasha , the ruling Al Thani tribe submitted peacefully to Ottoman rule. The Ottomans were forced to withdraw from the area with the start of World War I and the need for troops in various other frontiers. In World War II , the Western Allies used Iran as a conduit to transport military and industrial supply to the USSR, through a pathway known historically as

3990-690: The local powers and the Ottoman Empire. Following the arrival of the English and the Dutch, the Safavid Empire allied with the newcomers to contest Portuguese dominance of the seas in the 17th century. Portuguese expansion into the Indian Ocean in the early 16th century following Vasco da Gama 's voyages of exploration saw them battle the Ottomans up the coast of the Persian Gulf. In 1521,

4060-403: The magnesite quarry exploited in Eugui, Esteribar, Navarra (Spain) are considered among the best in the world. Persian Gulf The Persian Gulf , sometimes called the Arabian Gulf , is a mediterranean sea in West Asia . The body of water is an extension of the Indian Ocean located between Iran and the Arabian Peninsula . It is connected to the Gulf of Oman in the east by

4130-408: The mangroves as a biological reserve was ignored by the emirate of Sharjah, which allowed the dredging of a channel that bisects the wetland and construction of an adjacent concrete walkway. Environmental watchdogs in Arabia are few, and those that do advocate the wildlife are often silenced or ignored by developers of real estate many of whom have governmental connections. Real estate development in

4200-471: The mineral is also volumetrically important in some Neogene platforms never subjected to elevated temperatures. Under such conditions of diagenesis the long-term activity of the deep biosphere could play a key role in dolomitization, since diagenetic fluids of contrasting composition are mixed as a response to Milankovitch cycles . A recent biotic synthetic experiment claims to have precipitated ordered dolomite when anoxygenic photosynthesis proceeds in

4270-461: The most alarming sign is the "mass suicides" committed by dolphins off Iran's Hormozgan province, which are not well understood, but are suspected to be linked with a deteriorating marine environment from water pollution from oil, sewage, and industrial run offs. The Persian Gulf is home to over 700 species of fish, most of which are native. Of these 700 species, more than 80% are reef associated. These reefs are primarily rocky, but there are also

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4340-423: The most lucrative world supply of oil, and the lack of cooperation between Arab states and Iran, have had a negative impact on the survival of many marine species, including dugongs. The Persian Gulf is also home to many migratory and local birds. There is great variation in color, size, and type of the bird species that call the Persian Gulf home. Concerns regarding the endangerment of the kalbaensis subspecies of

4410-405: The northern coast and Saudi Arabia most of the southern coast. The Persian Gulf is about 56 km (35 mi) wide at its narrowest, in the Strait of Hormuz. Overall, the waters are very shallow, with a maximum depth of 90 metres (295 feet) and an average depth of 50 metres (164 feet). Countries with a coastline on the Persian Gulf are (clockwise, from north): Iran; Oman 's Musandam exclave ;

4480-402: The presence of manganese(II). A still perplexing example of an organogenic origin is that of the reported formation of dolomite in the urinary bladder of a Dalmatian dog, possibly as the result of an illness or infection. Dolomite is used as an ornamental stone, a concrete aggregate, and a source of magnesium oxide , as well as in the Pidgeon process for the production of magnesium . It

4550-440: The southern shorelines. During the seventh century the Sassanid Persian empire conquered the whole of the Persian Gulf, including southern and northern shores. Between 625 BC and 226 AD, the northern side was dominated by a succession of Persian empires including the Median , Achaemenid , Seleucid and Parthian empires. Under the leadership of the Achaemenid king Darius the Great (Darius I), Persian ships found their way to

4620-437: The structure give the crystals a yellow to brown tint. Manganese substitutes in the structure also up to about three percent MnO. A high manganese content gives the crystals a rosy pink color. Lead , zinc , and cobalt also can substitute in the structure for magnesium. The mineral dolomite is closely related to huntite Mg 3 Ca(CO 3 ) 4 . Because dolomite can be dissolved by slightly acidic water, areas where dolomite

4690-437: The surface of the water, as the corals are to biological health of the Persian Gulf in deeper waters. Mangroves' ability to survive the salt water through intricate molecular mechanisms, their unique reproductive cycle, and their ability to grow in the most oxygen-deprived waters have allowed them extensive growth in hostile areas of the Persian Gulf. However, with the advent of artificial island development, most of their habitat

4760-408: The waters off Qatar, Bahrain, UAE, and Saudi Arabia make the Persian Gulf the second most important habitat for the species, hosting some 7,500 remaining dugongs. However, the current number of dugongs is dwindling, and it is not clear how many are currently alive or what their reproductive trend is. Ambitious and uncalculated construction schemes, political unrest, ever-present international conflict,

4830-520: The world's largest population of Indo-Pacific humpbacked dolphins . One of the more unusual marine mammals living in the Persian Gulf is the dugong ( Dugong dugon ). Also called "sea cows", for their grazing habits and mild manner resembling livestock, dugongs have a life expectancy similar to that of humans and they can grow up to 3 metres (9.8 feet) in length. These gentle mammals feed on sea grass and are closer relatives of certain land mammals than are dolphins and whales . Their simple grass diet

4900-422: Was described as a rock by the French naturalist and geologist Déodat Gratet de Dolomieu (1750–1801), first in buildings of the old city of Rome, and later as samples collected in the Tyrolean Alps . Nicolas-Théodore de Saussure first named the mineral (after Dolomieu) in March 1792. The mineral dolomite crystallizes in the trigonal-rhombohedral system. It forms white, tan, gray, or pink crystals. Dolomite

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