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Elgygytgyn Lake
Lake El'gygytgyn ( Russian and Chukchi: Эльгыгытгын) is an impact crater lake located in the Chukotka Autonomous Okrug in northeast Siberia, about southeast of Chaunskaya Bay. The word "Elgygytgyn" means "white lake" in the Chukchi language. The lake is of particular interest to scientists because it has never been covered by glaciers. This has allowed the uninterrupted build-up of of sediment at the bottom of the lake, recording information on prehistoric climate change. Geography Lake El'gygytgyn is located in the Anadyr Plateau, part of the Anadyr Highlands. It is drained to the southeast by the Enmyvaam, a tributary of the Belaya. It is approximately in diameter and has a maximum depth of . The lake is centered within an impact crater with a rim diameter of that formed 3.6 million years ago during the Pliocene. Before it was reliably dated, preliminary papers in the late 1970s suggested either Elgygytgyn or Zhamanshin as the source of the youn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chukchi Peninsula
The Chukchi Peninsula (also Chukotka Peninsula or Chukotski Peninsula; russian: Чуко́тский полуо́стров, ''Chukotskiy poluostrov'', short form russian: Чуко́тка, ''Chukotka''), at about 66° N 172° W, is the easternmost peninsula of Asia. Its eastern end is at Cape Dezhnev near the village of Uelen. The Chukotka Mountains are located in the central/western part of the peninsula, which is bounded by the Chukchi Sea to the north, the Bering Sea to the south, and the Bering Strait to the east, where at its easternmost point it is only about from Seward Peninsula in Alaska; this is the smallest distance between the land masses of Eurasia and North America. The peninsula is part of Chukotka Autonomous Okrug of Russia. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rim (craters)
The rim or edge of an impact crater is the part that extends above the height of the local surface, usually in a circular or elliptical pattern. In a more specific sense, the rim may refer to the circular or elliptical edge that represents the uppermost tip of this raised portion. If there is no raised portion, the rim simply refers to the inside edge of the curve where the flat surface meets the curve of the crater bottom. Simple craters Smaller, simple craters retain rim geometries similar to the features of many craters found on the Moon and the planet Mercury. Complex craters Large craters are those with a diameter greater than 2.3 km, and are distinguished by central uplifts within the impact zone. These larger (also called “complex”) craters can form rims up to several hundred meters in height. A process to consider when determining the exact height of a crater rim is that melt may have been pushed over the crest of the initial rim from the initial impact, ther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lakes Of Chukotka Autonomous Okrug
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the last ice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Craters Of Russia
Impact may refer to: * Impact (mechanics), a high force or shock (mechanics) over a short time period * Impact, Texas, a town in Taylor County, Texas, US Science and technology * Impact crater, a meteor crater caused by an impact event * Impact event, the collision of a meteoroid, asteroid or comet with Earth * Impact factor, a measure of the citations to a science or social science journal Books and magazines * ''Impact'' (novel), a 2010 novel by Douglas Preston *'' Impact Press'', a former Orlando, Florida-based magazine * Impact Magazines, a former UK magazine publisher * ''Impact'' (conservative magazine), a British political magazine * ''Impact'' (British magazine), a British action film magazine * ''Impact'', a French action film magazine spun off from '' Mad Movies'' * ''Impact'' (UNESCO magazine), a former UNESCO quarterly titled ''IMPACT of science on society'' * ''Impact'' (student magazine), a student magazine for the University of Nottingham, England * ''Bat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PhysOrg
Phys.org is an online science, research and technology news aggregator offering briefs from press releases and reports from news agencies (a form of journalism sometimes pejoratively called churnalism). The website also produces its own science journalism. Phys.org is one of the most updated science websites, with an average of 98 posts per day. It is part of the Science X network of websites, headquartered on the Isle of Man, United Kingdom. In April 2011, Phys.org launched the Medical Xpress site dedicated to content on medicine and health. See also * EurekAlert! * Science Daily ''Science Daily'' is an American website launched in 1995 that aggregates press releases and publishes lightly edited press releases (a practice called churnalism) about science, similar to Phys.org and EurekAlert!. The site was founded by mar ... References External links * British news websites Technology websites British technology news websites News aggregators British science websit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Lakes Of Russia
List of lakes in Russia in alphabetical order: *Arakhley (Арахле́й) *Baikal (Байкал) *Baunt (Баунт) * Beloye, Ryazan Oblast (Белое) * Beloye, Vologda Oblast (Белое) * Bokon (Бокон) * Bolshoye Morskoye (Большое Морское) *Bolshoye Toko (Большое Токо) * Bolshoy Yeravna (Большо́е Ера́вное) *Bolshoye Topolnoye (Большое Топольное) *Botkul (Боткуль) *Brosno (Бросно) *Busani (Бусани) * Bustakh (Бустах) *Caspian Sea (Каспийское море) *Chany (Чаны) * Chukchagir (Чукчагирское) * Chyortovo (Чёртово) *Dorong (Доронг) *Lake Dynda (Дында) *Ebeyty (Эбейты) *Ekityki (Экитыки) * Elgygytgyn (Эльгыгы́тгын) *Emanda (Эмандьа) *Evoron (Эвopон) *Eyik (Эйик) * Ilirney (Илирней) * Ilmen (Ильмень) *Imandra (Имандра) * Ioni (Иони) *Isinga (Исинга) *Ivan-Arakhley Lake System ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic Char
The Arctic char or Arctic charr (''Salvelinus alpinus'') is a cold-water fish in the family Salmonidae, native to alpine lakes and arctic and subarctic coastal waters. Its distribution is Circumpolar North. It spawns in freshwater and populations can be lacustrine, riverine, or anadromous, where they return from the ocean to their fresh water birth rivers to spawn. No other freshwater fish is found as far north; it is, for instance, the only fish species in Lake Hazen which extend up to on Ellesmere Island in the Canadian Arctic. It is one of the rarest fish species in Great Britain and Ireland, found mainly in deep, cold, glacial lakes, and is at risk there from acidification. In other parts of its range, such as the Nordic countries, it is much more common, and is fished extensively. In Siberia, it is known as ''golets'' () and it has been introduced in lakes where it sometimes threatens less hardy endemic species, such as the small-mouth char and the long-finned char ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salvethymus Svetovidovi
''Salvethymus svetovidovi'', also called the long-finned charr, is a species of salmonid fish. It is endemic to Elgygytgyn Lake in Chukotka, Far East of Russia,Kottelat, M. 1996.''Salvethymus svetovidovi'' 2006 IUCN Red List of Threatened Species Downloaded on 5 August 2007. together with another species, the small-mouth char ''Salvelinus elgyticus''. A third char species in the same lake is ''Salvelinus'' ''boganidae'', the Boganid char.Alexander G. Osinov, Anna L. Senchukova, Nikolai S. Mugue, Sergei D. Pavlov, Igor A. Chereshnev (2015Speciation and genetic divergence of three species of charr from ancient Lake El'gygytgyn (Chukotka) and their phylogenetic relationships with other representatives of the genus ''Salvelinus''''Biological Journal of the Linnean Society'' 116, 63–85. Taxonomy The long-finned char is a morphologically aberrant type of char; when scientifically first described in 1990, it was placed as the single species in ''Salvethymus'', a new monotypic genus. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salvelinus Elgyticus
''Salvelinus elgyticus'' is a species of fish in the salmon family, Salmonidae. It is a member of genus ''Salvelinus'', the chars. It is known commonly as the small-mouth char (russian: малоротая палия). It is endemic to Lake El'gygytgyn in eastern Siberia in Russia.Froese, R. and D. Pauly, Editors''Salvelinus elgyticus''.FishBase. 2015. Description It is a small char species, dark colored with light spots, reaching a maximum length of just over . Little is known about its habits and life cycle. Biology This cold water fish is named after its native lake, which is located in Chukotka, Russian Federation. This species and its relative, the long-finned char (''Salvethymus svetovidovi'') are limited to this remote lake, which is an impact crater. They are adapted to its very cold waters, which are generally just above the freezing point. The surface is frozen for about 10 months of the year. It may start to melt in the summer, but some years it never fully thaws. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salvelinus
''Salvelinus'' is a genus of Salmonidae, salmonid fish often called char or charr; some species are called "trout". ''Salvelinus'' is a member of the subfamily Salmoninae within the family Salmonidae. The genus has a northern circumpolar distribution, and most of its members are typically cold-water fish that primarily inhabit fresh waters. Many species also migrate to the sea. Most char may be identified by light-cream, pink, or red spots over a darker body. Scales tend to be small, with 115-200 along the lateral line. The pectoral, pelvic, anal, and the lower aspect of caudal fins are trimmed in snow white or cream leading edges. Many members of this genus are popular sport fish, and a few, such as lake trout (''S. namaycush'') and arctic char (''S. alpinus'') are objects of commercial fisheries and/or aquaculture. Occasionally, such fish escape and become invasive species. Deepwater char are small species of char living below 80 m in the deep areas of certain lakes. They are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Koeberl
Christian Köberl (born February 18, 1959 in Vienna) is a professor of impact research and planetary geology at the University of Vienna, Austria. From June 2010 to May 2020 he was director general of the Natural History Museum in Vienna. He is best known for his research on meteorite impact craters. Biography and career Born in Vienna, Austria, in 1959, Köberl attended a technical high school specializing in chemistry, and from 1978 studied chemistry and physics at the Technical University of Vienna, as well as astronomy at the University of Vienna. In 1983, he completed his PhD studies at the University of Graz, Austria, with a dissertation in cosmochemistry. In 1985 he joined the faculty of the newly founded Institute of Geochemistry at the University of Vienna, becoming an assistant professor. In 1988, he joined the Lunar and Planetary Institute (Houston, TX, USA) and the NASA Johnson Space Center for half a year as a Fulbright Scholar. This was followed by several more re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julie Brigham-Grette
Julie Brigham-Grette is a glacial geologist and a professor in the Department of Geosciences at the University of Massachusetts Amherst where she co-directs the Joseph Hartshorn Quaternary Laboratory. Her research expertise is in glacial geology and paleoclimatology; she has made important contributions to Arctic marine and terrestrial paleoclimate records of late Cenozoic to recent, the evolution of the Arctic climate, especially in the Beringia/ Bering Strait region, and was a leader of the international Lake El’gygytgyn Drilling Project in northeastern Russia. Early life and education Brigham-Grette received a BA in geology from Albion College (Michigan) in 1976 graduating magna cum laude. While an undergraduate enrolled in a course on Glaciers and the Pleistocene at Albion College, Professor Lawrence D. Taylor inspired her to study glacial geology and paleoclimatology. In 1977, Brigham-Grette began her graduate studies at the Institute of Arctic and Alpine Resear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
