|
Bowie Canyon
The Bowie Canyon is a submarine canyon located in the Bering Sea. It is a submerged line of demarkation between the Bowers Ridge and the Aleutian Ridge. At its deepest point, it is 1.3 miles deep. It is named after American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ... geodetic engineer, William Bowie. References Submarine canyons of the Bering Sea {{marine-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine Canyon
A submarine canyon is a steep-sided valley cut into the seabed of the continental slope, sometimes extending well onto the continental shelf, having nearly vertical walls, and occasionally having canyon wall heights of up to 5 km, from canyon floor to canyon rim, as with the Great Bahama Canyon. Just as above-sea-level canyons serve as channels for the flow of water across land, submarine canyons serve as channels for the flow of turbidity currents across the seafloor. Turbidity currents are flows of dense, sediment laden waters that are supplied by rivers, or generated on the seabed by storms, submarine landslides, earthquakes, and other soil disturbances. Turbidity currents travel down slope at great speed (as much as 70 km/h), eroding the continental slope and finally depositing sediment onto the abyssal plain, where the particles settle out.Continental Margin Sedimentation: From Sediment Transport to Sequence Stratigraphy (Special Publication 37 of the IAS) Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bering Sea
The Bering Sea (, ; rus, Бе́рингово мо́ре, r=Béringovo móre) is a marginal sea of the Northern Pacific Ocean. It forms, along with the Bering Strait, the divide between the two largest landmasses on Earth: Eurasia and The Americas. It comprises a deep water basin, which then rises through a narrow slope into the shallower water above the continental shelf, continental shelves. The Bering Sea is named for Vitus Bering, a Denmark, Danish navigator in Russian service, who, in 1728, was the first European to systematically explore it, sailing from the Pacific Ocean northward to the Arctic Ocean. The Bering Sea is separated from the Gulf of Alaska by the Alaska Peninsula. It covers over and is bordered on the east and northeast by Alaska, on the west by the Russian Far East and the Kamchatka Peninsula, on the south by the Alaska Peninsula and the Aleutian Islands and on the far north by the Bering Strait, which connects the Bering Sea to the Arctic Ocean's Chukchi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolfram Alpha
WolframAlpha ( ) is an answer engine developed by Wolfram Research. It answers factual queries by computing answers from externally sourced data. WolframAlpha was released on May 18, 2009 and is based on Wolfram's earlier product Wolfram Mathematica, a technical computing platform. WolframAlpha gathers data from academic and commercial websites such as the CIA's ''The World Factbook'', the United States Geological Survey, a Cornell University Library publication called ''All About Birds'', ''Chambers Biographical Dictionary'', Dow Jones, the ''Catalogue of Life'', CrunchBase, Best Buy, and the FAA to answer queries. A Spanish version was launched in 2022. Technology Overview Users submit queries and computation requests via a text field. WolframAlpha then computes answers and relevant visualizations from a knowledge base of curated, structured data that come from other sites and books. It is able to respond to particularly phrased natural language fact-based questions. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bowers Ridge
The Bowers Ridge is located in the southern part of the Aleutian Basin. It extends over in an arc, starting in the southeast at the Aleutian Arc and terminating to the northwest at the Shirshov Ridge. The Bowers Ridge arc separates the Aleutian Basin from the Bowers Basin, which it encloses. The ridge is not currently seismically active. The northern slope of the ridge is steeper than the southern slope. On the Aleutian side, the ridge is rimmed by a trough filled with a sedimentary sequence 9–10 km thick.E. V. Verzhbitsky, M. V. Kononov, and V. D. Kotelkin; Plate Tectonics of the Northern Part of the Pacific Ocean; Oceanology; 2007; Vol. 47; No. 5; pp. 705–717; The average age of the Bowers Ridge is about 30 My (Late Oligocene). Rock from the upper part of the Bowers Ridge was determined to be of Miocene age. Hence the Bowers Ridge and the southern part of the Shirshov Ridge The Shirshov Ridge is located on the eastern border of the Commander Basin below the Kamchat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aleutian Ridge
The Aleutian Ridge is located in the western part of the Aleutian Arc in the Bering Sea. Geography It consists of a chain of volcanic islands located along the crest of a submarine ridge with most of the active Quaternary stratocones or caldera A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcano eruption. When large volumes of magma are erupted over a short time, structural support for the rock above the magma chamber is ...-like volcanoes located on the northern boundaries of the Aleutian Islands. Gallery Photos by the U.S. Air Force in May 1944 File:Alaska - Aleutian - NARA - 23937485 (cropped).jpg File:Alaska - Aleutian - NARA - 23937487 (cropped).jpg File:Alaska - Anchorage - NARA - 23937489 (cropped).jpg References Underwater ridges of the Bering Sea Geology of the Aleutian Islands Volcanoes of the Aleutian Islands Volcanism of Alaska Quaternary volcanism Quaternary Asia Quaternary Nort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulletin Of The Geological Society Of America
The ''Geological Society of America Bulletin'' (until 1960 called ''The Bulletin of the Geological Society of America'' and also commonly referred to as ''GSA Bulletin'') is a peer-reviewed scientific journal that has been published by the Geological Society of America since 1890. Its first editor was William John McGee.Eckel, Edwin, 1982, GSA Memoir 155, The Geological Society of America — Life History of a Learned Society, p. 79., . According to the ''Journal Citation Reports'', the journal has a 2016 impact factor of 4.212. See also *List of scientific journals in earth and atmospheric sciences A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College, an undergraduate division of the Jewish Theological Seminary of America * SC Germania List, German rugby unio ... References External links * Geological Society of America English-language journals Geology journals Bimonthly journals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Bowie (engineer)
William Bowie, B.S., C.E., M.A. (May 6, 1872 – August 28, 1940) was an American geodetic engineer. Background and education Bowie was born at Grassland, an historic estate near Annapolis Junction, Anne Arundel County, Maryland, to Thomas John Bowie and Susanna Anderson. He was educated in public schools, at St. John's College in Annapolis, Maryland, Trinity College in Hartford, Connecticut (B.S. 1893; M.A. 1907; Sc.D. 1919), and Lehigh (C.E. 1895; Sc.D. 1922). He received honorary degrees (LL.D. 1936) from the University of Edinburgh, Scotland, at the meeting of the International Union of Geodesy and Geophysics (IUGG) of which he was president from 1933 to 1936, and from George Washington University (Sc.D. 1937). Career In 1895 Bowie entered the United States Coast and Geodetic Survey. During World War I he served in the United States Army Corps of Engineers as a major. He represented the United States at various international geodetic conferences and congresses. His scien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Geospatial-Intelligence Agency
The National Geospatial-Intelligence Agency (NGA) is a combat support agency within the United States Department of Defense whose primary mission is collecting, analyzing, and distributing geospatial intelligence (GEOINT) in support of national security. Initially known as the National Imagery and Mapping Agency (NIMA) from 1996 to 2003, it is a member of the United States Intelligence Community. NGA headquarters, also known as NGA Campus East or NCE, is located at Fort Belvoir North Area in Springfield, Virginia. The agency also operates major facilities in the St. Louis, Missouri area (referred to as NGA Campus West or NCW), as well as support and liaison offices worldwide. The NGA headquarters, at , is the third-largest government building in the Washington metropolitan area after The Pentagon and the Ronald Reagan Building. In addition to using GEOINT for U.S. military and intelligence efforts, NGA provides assistance during natural and man-made disasters, aids in security ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
