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Iomrautvaam
The Iomrautvaam (russian: Иомраутваам; ckt, Емрауткенваам) is a river in Chukotka Autonomous Okrug, Russia. The length of the river is and the area of is drainage basin . The Iomrautvaam is the longest tributary of the Khatyrka river. Course The Iomrautvaam has its source in the Komeutyuyam Range of the Koryak Highlands. It flows in a roughly northeastern direction in the northern section of the range. Finally it meets the right bank of the Khatyrka from its mouth, close to the northeastern end of the ridge. Google Earth Khatyrka meteorite The Khatyrka meteorite, a unique-type of meteorite fell in the area of the Iomrautvaam river basin at . It was found during an expedition to Chukotka in the summer of 2011 buried in a 7,000-year-old layer of dirt and was named Khatyrka meteorite. Flora and fauna The river basin is characterized by tundra vegetation, including mosses, lichens, dwarf shrubs, and sedges.V. Yu. Neshataeva, ''Vegetation cover of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khatyrka Meteorite
Khatyrka (russian: метеорит Хатырка) is a meteorite found in 2011 in the valley of the Iomrautvaam, a tributary of the Khatyrka river, Chukotka Autonomous Okrug, Russian Far East. It is a CV3 (oxidized) chondrite meteorite. History The meteorite had fallen in the Iomrautvaam river basin at and was discovered during an expedition to Chukotka in July 2011. Nine small pieces were found, each less than 1 mm in size, buried in a 7,000-year-old layer of dirt. It was named Khatyrka meteorite.Звизда Т. В., Мануйлов А. А., Василенко А. М. ''Отчет о геологической съемке масштаба 1:50000 и поисках месторождений полезных ископаемых в бассейне нижнего течения р. Иомраутваам на территории листов Р-60-38-В,'' Г; 39-В. Анадырь, 1977. 221 с. Specimens Three representative fragments were deposited at the Department o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khatyrka (river)
The Khatyrka (russian: Хатырка; ckt, Ватыркан) is a river in Chukotka Autonomous Okrug, Russia. The length of the river is and the area of is drainage basin . The name of the river comes from the Chukot ''"vatyrkan"'' ''(Ватыркан)'', meaning "dry, depleted place". Course The Khatyrka has its source in the Koryak Highlands. It first flows in an ENE direction along the northern slopes of the Komeutyuyam Range as a mountain river within a narrow valley. It bends to the SSE at the northeastern end of the range and the valley expands, the river dividing into channels. In its lower course it flows along a marshy floodplain. A stretch of the river forms the border with the Olyutorsky District of Kamchatka Krai. Its mouth is in an estuary that is separated by a narrow landspit from the Bering Sea. Khatyrka village lies at the mouth of the estuary. Google Earth Tributaries The main tributary of the Khatyrka is the long Iomrautvaam (Иомраутваам ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rivers Of Russia
Russia can be divided into a European and an Asian part. The dividing line is generally considered to be the Ural Mountains. The European part is drained into the Arctic Ocean, Baltic Sea, Black Sea, and Caspian Sea. The Asian part is drained into the Arctic Ocean and the Pacific Ocean. Notable rivers of Russia in Europe are Volga (which is the longest river in Europe), Pechora, Don, Kama, Oka and the Northern Dvina, while several other rivers originate in Russia but flow into other countries, such as the Dnieper and the Western Dvina. In Asia, important rivers are the Ob, the Irtysh, the Yenisei, the Angara, the Lena, the Amur, the Yana, the Indigirka, and the Kolyma. In the list below, the rivers are grouped by the seas or oceans into which they flow. Rivers that flow into other rivers are ordered by the proximity of their point of confluence to the mouth of the main river, i.e., the lower in the list, the more upstream. There is an alphabetical list of rivers at the end of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khatyrkite
Khatyrkite ( ) is a rare mineral which is mostly composed of copper and aluminium, but may contain up to about 15% of zinc or iron. Its chemical structure is described by an approximate formula or . It was discovered in 1985 in a placer in association with another rare mineral cupalite (). These two minerals have only been found at in the area of the Iomrautvaam, a tributary of the Khatyrka river, in the Koryak Mountains, in Anadyrsky District (former Beringovsky District), Chukotka, Russia. Analysis of one of the samples containing khatyrkite showed that the small rock was from a meteorite. A geological expedition has identified the exact place of the original discovery and found more specimens of the Khatyrka meteorite. The mineral's name derives from the Khatyrka (russian: Хатырка) zone where it was discovered. Its type specimen (defining sample) is preserved in the Mining Museum in Saint Petersburg, and parts of it can be found in other museums, such as Museo d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Komeutyuyam Range
The Komeutyuyam Range (russian: Комеутюямский хребет; zh, 科梅乌秋亚姆斯基山) is a range of mountains in Chukotka Autonomous Okrug and Kamchatka Krai, Russian Far East. Administratively the northern section of the range belongs to the Anadyr District of Chukotka Autonomous Okrug, and the southern to Olyutorsky District of Kamchatka Krai.Google Earth Geography The Komeutyuyam Range is part of the Koryak Highland system. It stretches parallel to the Bering Sea coast, about inland, in a NE/SW direction between the western end of the Ukvushvuynen Range in the north and the Pikas Range in the south. The valley of the Pikasvayam, the largest tributary of the Ukelayat, marks its southern end. The highest point of the range is Mt Volokvyneitkon (гора Волоквынейткон) — or Mt Valvykvyneitkon (гора Валвыквынейткон), a high peak, located in the southwestern sector of the range, near the limit between Chukotka Auton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russia
Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the world, with its internationally recognised territory covering , and encompassing one-eighth of Earth's inhabitable landmass. Russia extends across Time in Russia, eleven time zones and shares Borders of Russia, land boundaries with fourteen countries, more than List of countries and territories by land borders, any other country but China. It is the List of countries and dependencies by population, world's ninth-most populous country and List of European countries by population, Europe's most populous country, with a population of 146 million people. The country's capital and List of cities and towns in Russia by population, largest city is Moscow, the List of European cities by population within city limits, largest city entirely within E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chukotka Expedition 2011
Chukotka may refer to: *Chukotka Autonomous Okrug, a federal subject of Russia *Chukotka, alternative name of the Chukchi Peninsula, eastmost peninsula of Asia in the Russian Far East *Chukotka Mountains *2509 Chukotka, an asteroid See also *Chukotsky (other) Chukotsky (чуко́тский, '' hukótskiy'', masculine), Chukotskaya (чуко́тская, '' hukótskaya'', feminine), Chukotskoye (чуко́тское, '' hukótskoye'', neuter), or Chukotskiye (чуко́тские, '' hukótskiye'', plur ... * Chukchi (other) {{Disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedge
The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus ''Carex'' with over 2,000 species. These species are widely distributed, with the centers of diversity for the group occurring in tropical Asia and tropical South America. While sedges may be found growing in almost all environments, many are associated with wetlands, or with poor soils. Ecological communities dominated by sedges are known as sedgelands or sedge meadows. Some species superficially resemble the closely related rushes and the more distantly related grasses. Features distinguishing members of the sedge family from grasses or rushes are stems with triangular cross-sections (with occasional exceptions, a notable example being the tule which has a round cross-section) and leaves that are spirally arranged in three ranks. In comparison, g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krummholz
''Krummholz'' (german: krumm, "crooked, bent, twisted" and ''Holz'', "wood") — also called ''knieholz'' ("knee timber") — is a type of stunted, deformed vegetation encountered in the subarctic and subalpine Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ... tree line landscapes, shaped by continual exposure to fierce, freezing winds. Under these conditions, trees can only survive where they are sheltered by rock formations or snow cover. As the lower portion of these trees continues to grow, the coverage becomes extremely dense near the ground. In Newfoundland and Labrador, the formation is known as tuckamore. ''Krummholz'' trees are also found on beaches such as the Oregon coast, where trees can become much taller than their subalpine cousins. Species Common trees showing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichen
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not s. They may have tiny, leafless branches (); flat leaf-like structures ( |
Moss
Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta (''sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations. The individual plants are usually composed of simple leaves that are generally only one cell thick, attached to a stem that may be branched or unbranched and has only a limited role in conducting water and nutrients. Although some species have conducting tissues, these are generally poorly developed and structurally different from similar tissue found in vascular plants. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing spores. They are typically tall, though some species are much larger. ''Dawsonia'', the tallest moss in the world, can grow to in height. There are a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tundra
In physical geography, tundra () is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. The term ''tundra'' comes through Russian (') from the Kildin Sámi word (') meaning "uplands", "treeless mountain tract". There are three regions and associated types of tundra: Arctic tundra, alpine tundra, and Antarctic tundra. Tundra vegetation is composed of dwarf shrubs, sedges, grasses, mosses, and lichens. Scattered trees grow in some tundra regions. The ecotone (or ecological boundary region) between the tundra and the forest is known as the tree line or timberline. The tundra soil is rich in nitrogen and phosphorus. The soil also contains large amounts of biomass and decomposed biomass that has been stored as methane and carbon dioxide in the permafrost, making the tundra soil a carbon sink. As global warming heats the ecosystem and causes soil thawing, the permafrost carbon cycle accelerates and releases much of these soil-contained g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
