"of around 149,200 square miles (386,400 square km)— bigger than the region of Japan—and its surface lies somewhere in the range of 90 feet (27 meters) below sea level. The sea bed in the southern part reaches as low as 1,023 m (3,356 ft) below sea level, which is the second lowest natural depression on earth after Lake Baikal (−1,180 m, −3,871 ft). The ancient inhabitants of its coast perceived the Caspian Sea as an ocean, probably because of its saltiness and large size. The sea has a surface area of 371,000 km (143,200 sq mi) (not including the detached"
"a long time. Nintoku Seamount Nintoku Seamount or Nintoku Guyot is a seamount (underwater volcano) and guyot (flat top) in the Hawaiian-Emperor seamount chain. It is a large, irregularly shaped volcano that last erupted 66 million years ago. Three lava flows have been sampled at Nintoku Seamount; the flows are almost all alkalic (subaerial) lava. It is 56.2 million years old. Nintoku is positioned a roughly 41 degrees north latitude, approximately two-thirds the way southward along the north-northeast-south-southeast Emperor seamounts extending from Meiji Seamount (about 53°N) in the north to Kammu Seamount (about 32°N) at the chain's southern terminus. Nintoku"
"Nintoku Seamount Nintoku Seamount or Nintoku Guyot is a seamount (underwater volcano) and guyot (flat top) in the Hawaiian-Emperor seamount chain. It is a large, irregularly shaped volcano that last erupted 66 million years ago. Three lava flows have been sampled at Nintoku Seamount; the flows are almost all alkalic (subaerial) lava. It is 56.2 million years old. Nintoku is positioned a roughly 41 degrees north latitude, approximately two-thirds the way southward along the north-northeast-south-southeast Emperor seamounts extending from Meiji Seamount (about 53°N) in the north to Kammu Seamount (about 32°N) at the chain's southern terminus. Nintoku Seamount was named"
"center. The extreme elevation of this great body of water, 7,714 3/5 feet, is difficult to realize. Place Mount Washington, the pride of New England, with its base at the sea level, at the bottom of the lake, and the clear waters of the latter would roll 2,214 feet above its summit. With the single exception of Lake Titticaeca, Peru, it is the highest great body of water on the globe. No shells of any description are found on the lake shore, nor is there any evidence of the waters ever having stood at a much higher level than the"
"Underwater Underwater refers to the region below the surface of water where the water exists in a swimming pool or a natural feature (called a body of water) such as an ocean, sea, lake, pond, or river. Three quarters of the planet Earth is covered by water. A majority of the planet's solid surface is abyssal plain, at depths between below the surface of the oceans. The solid surface location on the planet closest to the centre of the orb is the Challenger Deep, located in the Mariana Trench at a depth of . Although a number of human activities"
"Dead Sea The Dead Sea ( lit. Sea of Salt; ) is a salt lake bordered by Jordan to the east and Israel and the West Bank to the west. Its surface and shores are below sea level, Earth's lowest elevation on land. The Dead Sea is deep, the deepest hypersaline lake in the world. With a salinity of 342 g/kg, or 34.2% (in 2011), it is 9.6 times as salty as the ocean and one of the world's saltiest bodies of water. This salinity makes for a harsh environment in which plants and animals cannot flourish, hence its name."
"Adams Seamount Adams Seamount is a submarine volcano above the Pitcairn hotspot in the central Pacific Ocean about southwest of Pitcairn Island. Adams is part of a field of about 90 seamounts east-southeast away from Pitcairn Island, and the largest of these. Adams lies southeast of another large seamount, Bounty Seamount. Most of these seamounts except for Adams and Bounty are less than high. They were discovered in 1989 by the RV Sonne research ship. It is a conical seamount rising from the sea floor to about below the surface of the ocean. The total volume of the seamount, whose"
"true...(Below 200 meters) lies the largest habitat on earth. In 1960, the Bathyscaphe ""Trieste"" descended to the bottom of the Mariana Trench near Guam, at , the deepest known spot in any ocean. If Mount Everest (8,848 metres) were submerged there, its peak would be more than a mile beneath the surface. The ""Trieste"" was retired, and for a while the Japanese remote-operated vehicle (ROV) Kaikō was the only vessel capable of reaching this depth. It was lost at sea in 2003. In May and June 2009, the hybrid-ROV (HROV) ""Nereus"" returned to the Challenger Deep for a series of"
"The Earth Suspended River The Earth Suspended River(地上悬河） is located in the lower reaches of the Yellow River，which is a world-famous geographical landscape. Also known as 'the raised bed river', its bed is more than 3 metres higher than the ground. In some places,the water level is even about 10 metres higher than the ground. The yellow river is famous for being sandy with very high sediment concentration. Reasons are as follows: first of all, ascent of this reach is not so big. Besides, both sides of the river are open. Last but not least,the current is gentle too. Above"
"is deeper than the height of Mount Everest. In 1960, Don Walsh and Jacques Piccard reached the bottom of Mariana Trench in the ""Trieste"" bathyscaphe. The pressure is about 11,318 metric tons-force per square meter (110.99 MPa or 16100 psi). The mesopelagic zone is the upper section of the midwater zone, and extends from below sea level. This is colloquially known as the ""twilight zone"" as light can still penetrate this layer, but it is too low to support photosynthesis. The limited amount of light, however, can still allow organisms to see, and creatures with a sensitive vision can detect"
"for any small vessels that wander off the marked channels. Gatun Lake has an area of at its normal level of 26 m (85 ft) above sea level; it stores 5.2 cubic kilometres (183,000,000,000 ft³) of water, which is about as much as the Chagres River brings down in an average year. With the creation of the lake many hilltops became islands. The biggest and best known of them is Barro Colorado Island, home of the world-famous Smithsonian Tropical Research Institute (STRI). The lake has given its name to the Gatun structure, which may be an eroded impact crater. Gatun"
"Pioneer Seamount Pioneer Seamount is an undersea mountain, or seamount, in the Pacific Ocean off the coast of central California. Pioneer Seamount is located at 37° 21.1' North Latitude, 123° 26.1' West Longitude, at the base of the continental slope of North America about off the coast just southwest of San Francisco, California. The seamount is a volcano between 10.9 and 11.1 million years old. It is about long as well as about wide, and has a volume of about . It rises about above the surrounding ocean floor, and its peak is a minimum of below the oceans surface."
"seamount. Guyot In marine geology, a guyot (pronounced ), also known as a tablemount, is an isolated underwater volcanic mountain (seamount) with a flat top more than below the surface of the sea. The diameters of these flat summits can exceed . Guyots are most commonly found in the Pacific Ocean, but they have been identified in all the oceans except the Arctic Ocean. Guyots were first recognized in 1945 by Harry Hammond Hess, who collected data using echo-sounding equipment on a ship he commanded during World War II. His data showed that some undersea mountains had flat tops. Hess"
"48″ N, 150° 26′ 24″ W) Patton Seamount is about 33 million old. Although there is not much information about its geology, the biology at the Patton Seamount is very well studied. The seamount is 183 meters below the ocean surface and the height from the seafloor is 3048 meters. In July 1999, DSV Alvin was used to explore the biodiversity at the Patton Seamount. The Shallow water community mostly consisted of rockfish, flatfish, sea stars and attached suspension feeders. The community at mid-depths consist of attached suspension feeding organisms like corals, sponges, crinoids, sea anemones and sea cucumbers. The"
"seawater can percolate through Resolution Guyot. Resolution Guyot Resolution Guyot (formerly known as Huevo) is a guyot/tablemount in the underwater Mid-Pacific Mountains, Pacific Ocean. It is a circular flat mountain that rises above the seafloor to a depth of about , with a wide summit platform. The Mid-Pacific Mountains and thus also Resolution Guyot lie west of Hawaii and northeast of the Marshall Islands but at the time of its formation it was located in the Southern Hemisphere. It was probably formed by a hotspot in what is present-day French Polynesia before plate tectonics moved it to its present-day location."
"120 feet (37 meters) of the surface. The seamount was discovered in 1853 by the U.S. Coast Survey, and named for Edward Cordell, who surveyed the area more thoroughly in 1869. It was extensively explored and described during 1978-86 by Robert Schmieder, who published a monograph about it [Schmieder, 1991]. It has been protected as a sanctuary since 1989. The protected area encompasses 526 square miles (1347 km) of ocean. The unique blend of ocean conditions and undersea topography creates a rich and diverse underwater ecosystem. A subsurface island rises from soft sediments covering the continental shelf. The upper pinnacles"
"or Bellow Water near its junction with the Glenmore Water from which point the name Lugar Water is applied. It is made of two vertical stones, and a horizontal stone about 6 ft long, 3 ft broad, and 4 ft high. It was regarded as a Druidic monument or the grave of a Caledonian hero. This stone has often been overlooked, as the OS maps give the wrong location; it sits beside the Bellow Water above its confluence with the Glenmore Water and not on Lamargle Hill. The Kyaiktiyo Pagoda in Burma is a religious shrine built on top of"
"Sea of Galilee The Sea of Galilee (, Judeo-Aramaic: יַמּא דטבריא, גִּנֵּיסַר, ), Kinneret or Kinnereth, Lake of Gennesaret, or Lake Tiberias, is a freshwater lake in Israel. It is approximately in circumference, about long, and wide. Its area is at its fullest, and its maximum depth is approximately 43 m (141 feet). At levels between and below sea level, it is the lowest freshwater lake on Earth and the second-lowest lake in the world (after the Dead Sea, a saltwater lake). The lake is fed partly by underground springs although its main source is the Jordan River which flows"
"Koko Guyot Koko Guyot (also sometimes known as ""Kinmei"" and Koko Seamount) is a 48.1-million-year-old guyot, a type of underwater volcano with a flat top, which lies near the southern end of the Emperor seamounts, about north of the ""bend"" in the volcanic Hawaiian-Emperor seamount chain. Pillow lava has been sampled on the north west flank of Koko Seamount, and the oldest dated lava is 40 million years old. Seismic studies indicate that it is built on a thick portion of the Pacific Plate. The oldest rock from the north side of Koko Seamount is dated at 52.6 and the"
"Ruwitūn̄tūn̄ Ruwitūn̄tūn̄ is a guyot in the Pacific Ocean which reaches a depth of below sea level. It is capped off with a summit platform covered in sediments and some volcanic pinnacles with craters. Basaltic rocks have been found on Ruwitūn̄tūn̄. Aptian to Campanian age has been inferred from fossils found on Ruwitūn̄tūn̄, including Albian rudists. A Campanian limestone has also been found on Ruwitūn̄tūn̄. A number of flat-topped seamounts rise from the floor of the western Pacific Ocean to depths of below sea level. They are called guyots and are clustered in an elongated region with and between the"
"4 meters below sea level. The sinkhole is named after the reddish-brown color of the surrounding cliffs, colored by iron oxides. Like the nearby Blue Lake, it is presumed that the lake emerged when the ceiling of a large cave hall collapsed. The lake is inhabited with endemic and endangered spotted minnow (""Delminichthys adspersus""). In the dry period of the year, this fish can be occasionally seen in surrounding springs, rivers and lakes, suggesting that there is an underground connection between Red Lake and other water bodies. At the 13th International Congress of Speleology in 2001, new findings were revealed."
"Baiheliang Baiheliang (Simplified: 白鹤梁, Traditional: 白鶴梁, Pinyin: ""Báihèliáng"", lit. ""White Crane Ridge"") is a rock outcrop in Fuling District, Chongqing, People's Republic of China, that parallels the flow of the Yangtze River. In the past, Baiheliang served as an ancient device for measuring water levels of the Yangtze in China, the equivalent of a hydrometric station. The horizontal rock ledge, 1.6 km long and ten to fifteen metres wide, lay submerged under water most of the year, showing its upper face above water only during the low-water season of winter and early spring. The eyes of fish carved on the"
"Salton Sea The Salton Sea is a shallow, saline, endorheic rift lake located directly on the San Andreas Fault, predominantly in the U.S. state of California's Imperial and Coachella valleys. The lake occupies the lowest elevations of the Salton Sink in the Colorado Desert of Imperial and Riverside counties in Southern California. Its surface is below sea level as of January 2018. The deepest point of the sea is higher than the lowest point of Death Valley. The sea is fed by the New, Whitewater, and Alamo Rivers, as well as agricultural runoff, drainage systems, and creeks. Over millions of"
"Sea of Galilee Boat The Ancient Galilee Boat, also known as the Jesus Boat, is an ancient fishing boat from the 1st century AD, discovered in 1986 on the north-west shore of the Sea of Galilee in Israel. The remains of the boat, 27 feet (8.27 meters) long, 7.5 feet (2.3 meters) wide and with a maximum preserved height of 4.3 feet (1.3 meters), first appeared during a drought, when the waters of the Sea (actually a great fresh-water lake) receded. There is no evidence connecting the boat to Jesus or his disciples. The remains of the Ancient Galilee Boat"
"""""White Crane Ridge"""") is an archaeological site in the north of Fuling District that has been submerged underwater due to the building of the Three Gorges Dam. The museum displays centuries-old inscriptions recording changes in the water level of the Yangtze River for around 1,200 years. The site consists of a stone ridge that is 1,600 meters by 15 meters in size. It is now submerged under 43 meters of water. Before the Three Gorges Dam was built, the rock ridge was only submerged during summer and autumn. Every 3–5 years, when the water level of the Yangtze dropped during"
"Challenger Deep The Challenger Deep is the deepest known point in the Earth's seabed hydrosphere, with a depth of by direct measurement from submersibles, and slightly more by sonar bathymetry. It is in the Pacific Ocean, at the southern end of the Mariana Trench near the Mariana Islands group. The Challenger Deep is a relatively small slot-shaped depression in the bottom of a considerably larger crescent-shaped oceanic trench, which itself is an unusually deep feature in the ocean floor. The Challenger Deep's bottom is about long and wide, with gently sloping sides. The closest land to the Challenger Deep is"
"Axial Seamount Axial Seamount (also Coaxial Seamount or Axial Volcano) is a seamount and submarine volcano located on the Juan de Fuca Ridge, approximately west of Cannon Beach, Oregon. Standing high, Axial Seamount is the youngest volcano and current eruptive center of the Cobb–Eickelberg Seamount chain. Located at the center of both a geological hotspot and a mid-ocean ridge, the seamount is geologically complex, and its origins are still poorly understood. Axial Seamount is set on a long, low-lying plateau, with two large rift zones trending to the northeast and southwest of its center. The volcano features an unusual rectangular"
"Bahamut Bahamut, Bahamoot ( ; ""Bahamūt"", from Hebrew בְּהֵמוֹת ""Behemoth"") is a sea monster (gigantic fish or whale) that lies deep below, underpinning the support structure that holds up the earth, according to Zakariya al-Qazwini. In this conception of the world, the earth is shouldered by an angel, who stands on a slab of gemstone, which is supported by the cosmic beast (ox) sometimes called Kuyutha'(/Kuyuthan)/Kiyuban/Kibuthan (most likely from a corruption or misrendering of Hebrew לִוְיָתָן‬ ""Leviathan""). The fish/whale Bahamut carries this bull on its back, and is suspended in water for its own stability. Balhūt is a variant name"
"Eemian Sea The Eemian Sea was a body of water located approximately where the Baltic Sea is now during the last interglacial, or Eemian Stage, Marine isotopic stage (MIS) 5e, roughly 130,000 to 115,000 years BP. Sea level was 5 to 7 metres higher globally than it is today, due to the release of glacial water in the early stage of the interglacial. Although “Eemian” rightly applies only to the northern European glacial system, some scientists use the term in a wider sense to mean any high-level body of water in the last interglacial. The early Eemian Sea connected with"
"water level in the lake dropped 28 feet below its normal level at the height of the drought. At such times visitors see a much larger cavern above the lake surface. Craighead Caverns Craighead Caverns is an extensive cave system located in between Sweetwater and Madisonville, Tennessee. It is best known for containing the United States' largest and the world's second largest non-subglacial underground lake, The Lost Sea. In addition to the lake, the caverns contain an abundance of crystal clusters called anthodites, stalactites, stalagmites, and a waterfall. Located in the foothills of the Great Smoky Mountains, the caverns are"
"(32–49 ft). The researchers were hoping to raise funds for a full survey of the area, but any work would first have to be approved by the local Maori tribe on whose sacred ancestral land the Pink and White Terraces are situated. Lake Rotomahana Lake Rotomahana is an lake in northern New Zealand, located 20 kilometres to the south-east of Rotorua. It is immediately south-west of the dormant volcano Mount Tarawera, and its geography was substantially altered by a major 1886 eruption of Mount Tarawera. Along with the mountain, it lies within the Okataina caldera. Before the 1886 eruption, only"
"Guyot In marine geology, a guyot (pronounced ), also known as a tablemount, is an isolated underwater volcanic mountain (seamount) with a flat top more than below the surface of the sea. The diameters of these flat summits can exceed . Guyots are most commonly found in the Pacific Ocean, but they have been identified in all the oceans except the Arctic Ocean. Guyots were first recognized in 1945 by Harry Hammond Hess, who collected data using echo-sounding equipment on a ship he commanded during World War II. His data showed that some undersea mountains had flat tops. Hess called"
"Bear Seamount The Bear Seamount is a guyot or flat-topped underwater volcano in the Atlantic Ocean. It is the oldest of the New England Seamounts, which was active more than 100 million years ago. It was formed when the North American Plate moved over the New England hotspot. It is located inside the Northeast Canyons and Seamounts Marine National Monument, which was proclaimed by President of the United States Barack Obama to protect the seamount's biodiversity. The Bear Seamount is the first guyot in a chain of about 30 extinct volcanoes extending in a straight line south-eastwards from the edge"