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Yugorsky Peninsula
The Yugorsky Peninsula () is a large peninsula in Nenets Autonomous Okrug, Russia. It is limited by the Khaypudyr Bay in the Pechora Sea to the west and by the Baydaratsk Bay in the Kara Sea to the north and east. Compared to the Barents Sea, which receives relatively warm currents from the Atlantic Ocean, the Kara Sea is much colder, remaining frozen for over nine months a year. Thus often, in the spring and in the fall, the eastern coast of the Yugorsky Peninsula is frozen, while its western coast is clear of ice. The Yugorsky Strait and, beyond it, Vaygach Island lie at the northwestern end of this peninsula. The Pay-Khoy Ridge occupies the peninsula and extends from northwest to southeast. In the southeastern end of the Yugorsky Peninsula lies the Kara meteorite crater, while the Ust-Kara site lies offshore, 15 km east of the small Kara or Karskaya Guba inlet. It was formerly believed that these two sites were two separate craters and that they formed a twin impact ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nenets Autonomous Okrug
The Nenets Autonomous Okrug (; ) also known as Nenetsia ( ) is a federal subject of Russia and an autonomous okrug of Arkhangelsk Oblast. Its administrative center is the town of Naryan-Mar. It has an area of and a population of 42,090 as of the 2010 Census, making it the least populous federal subject. A plan to merge the autonomous okrug with Arkhangelsk Oblast was presented by the governors of both federal subjects on 13 May 2020, with a referendum planned for September, but was met with opposition by locals, leading to the merger process being scrapped completely. Geography The arctic ecology of this area has a number of unique features derived from the extreme temperatures and unique geologic province. Polar bears are found in this locale; in fact, the sub-population found here is a genetically distinct taxon associated with the Barents Sea region. The autonomous okrug has a size of approximately 177,000 km2, more than four times the size of Switzerland o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yugorsky Strait
The Yugorsky Strait or Yugor Strait (, or Yugorsky Shar) is a narrow sound between the Kara Sea and the Pechora Sea. Its maximum width is 10 km and its minimum width only 3 km. Ostrov Storozhevoy, an island 1.6 km in length, lies in the middle of the strait. This sound separates Vaygach Island from the Yugorsky Peninsula on the Russian mainland. The name is derived from Yugaria, an old name for the region to the south of Yugorsky Strait. History The earliest recorded voyage through the Yugorsky Shar, traditionally known as the Arctic "Iron Gateway", into the Kara Sea was made from Nizhny Novgorod by early Russian explorer Uleb in 1032. Russian Pomors, the coastal dwellers of the White Sea shores, had been exploring this strait since the 11th century. The Arctic's first shipping line, the Great Mangazea Route, from the White Sea to the Ob River and the Yenisei Gulf began operating in the latter part of the 16th century. This line opened up the way to Sib ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suevite
Suevite is a rock consisting partly of melted material, typically forming a breccia containing glass and crystal or lithic fragments, formed during an impact event. It forms part of a group of rock types and structures that are known as impactites. Name The word "suevite" is derived from "Suevia", Latin name of Swabia. The geologist Oliver Sachs was able to show that, over the course of the 19th and 20th centuries, this type of rock was recognized as something special and, in 1919, was formally introduced into petrographic science by Adolf Sauer under the name "suevite".J. O. Sachs: ''Wie der Schwabenstein zu seinem Namen kam.'' In: W. Rosendahl, M. Schieber (Hrsg.): ''Der Stein der Schwaben. Natur- und Kulturgeschichte des Suevits.'' Band 4, Staatsanzeiger-Verlag, Stuttgart 2009. Formation Suevite is thought to form in and around impact craters by the sintering of molten fragments together with unmelted clasts of the country rock. Rocks formed from more completely melted mat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ninth and longest geological period of the entire Phanerozoic. The name is derived from the Latin , 'chalk', which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation . The Cretaceous was a period with a relatively warm climate, resulting in high Sea level#Local and eustatic, eustatic sea levels that created numerous shallow Inland sea (geology), inland seas. These oceans and seas were populated with now-extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was largely ice-free, although there is some evidence of brief periods of glaciation during the cooler first half, and forests extended to the poles. Many of the dominant taxonomic gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kara Crater
Kara is a meteorite crater in the Yugorsky Peninsula, Nenetsia, Russia. Heavily eroded, it is presently in diameter, though it is thought to be originally before erosion. Its age is estimated to be 70.3 ± 2.2 million years old (Late Cretaceous). Impactite outcrops located on the Baydarata Gulf (Baydaratskaya) shore north-east of the crater imply that the original size of the crater could have been the 4th largest on Earth. The crater is not exposed at the surface. The Kara crater lies in the southeastern end of the Yugorsky Peninsula, while the Ust-Kara site lies offshore, east of the small Kara or Karskaya Guba inlet. It was formerly believed that these two sites were two separate craters and that they formed a twin impact structure from the Late Cretaceous. However, it seems that the Ust-Kara site does not exist as a separate site. Apparently, the suevite Suevite is a rock consisting partly of melted material, typically forming a breccia containing glass and crystal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pay-Khoy
The Pay-Khoy Range () is a mountain range at the northern end of the Ural Mountains. It lies within the Nenets Autonomous Okrug. Geography The ridge is extended from northwest to southeast. It is located on the Yugorsky Peninsula, in the eastern part of the Nenets Autonomous Okrug. The ridge continues to Vaygach Island, thus separating the Barents Sea and the Kara Sea. The highest point of Pay-Khoy is the mountain of Moreiz (). The range separates the drainage basins of the (west, Barents Sea) and the Kara River (east, Kara Sea). The areas around Pay-Khoy do not have permanent population. The closest permanent settlements are Amderma and Ust-Kara, Nenets Autonomous Okrug The range is located in the tundra, to the north of the tree line. Geology The Pay-Khoy range forms a curved orogen together with the Ural Mountains, Vaygach Island and the Novaya Zemlya Novaya Zemlya (, also , ; , ; ), also spelled , is an archipelago in northern Russia. It is situated in the Arctic Oce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vaygach Island
Vaygach Island () is an island in the Arctic Sea between the Pechora Sea and the Kara Sea. Geography Vaygach Island is separated from the Yugorsky Peninsula in the mainland by the Yugorsky Strait and from Novaya Zemlya by the Kara Strait. The island is a part of Nenets Autonomous Okrug of Arkhangelsk Oblast, Russia. * Area: * Length: ~ * Width: up to * Average temperatures: (February), (June) * Highest point: Vaygach Island is mainly formed of argillaceous slates, sandstone, and limestone. There are many rivers about in length, swamps, and small lakes on the island. For the most part it consists of tundra. Slight rocky ridges run generally along its length, and the coast has low cliffs in places. The island consists mostly of limestone, and its elevation above the sea is geologically recent. Raised beaches are frequent. The rocks are heavily scored by ice, but this was probably marine ice, not that of glaciers. The only settlement on the island is Varnek. Environm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permafrost And Periglacial Processes
''Permafrost and Periglacial Processes'' is a quarterly peer-reviewed scientific journal covering research on permafrost and periglacial geomorphology. It covers the subject from various points of views including engineering, hydrology, process geomorphology, and quaternary geology. It is the official journal of the International Permafrost Association and is published by John Wiley & Sons. The editor-in-chief is Mauro Guglielmin (Insubria University, Italy). According to the ''Journal Citation Reports'', the journal has a 2020 impact factor of 4.368. See also *''Biuletyn Peryglacjalny ''Biuletyn Peryglacjalny'' was a scientific journal covering research on periglacial geomorphology. It was established in 1954 in Łódź by Polish geomorphologist Jan Dylik, who was its editor-in-chief An editor-in-chief (EIC), also known as le ...'' References External links * Arctic research Earth and atmospheric sciences journals Geomorphology journals Soil science Academic journal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pechora Sea
The Pechora Sea (, ) is an Arctic sea to the north-west of European Russia, forming the south-eastern portion of the Barents Sea. It is bordered to the west by Kolguyev Island; to the east by Vaygach Island's western coasts and the Yugorsky Peninsula; and to the north by the southern end of Novaya Zemlya. Located in the centre of the East-Atlantic flyway with conditions befitting for benthic life, the Pechora Sea supports about 600 taxa and the Barents Sea's highest total biomass. It is the site of the yearly migration of one of the largest salmon stocks in Northern Europe. Compared to the rest of the Barents Sea, the Pechora Sea is unique for its more continental climate, lower salinity, shallowness, separation from the open sea and large input from rivers, as well as a low level of human interference historically. Its temperate characteristics are not typical of the Arctic. History Historically, before the adjacent Barents Sea was named as such, the Pechora Sea's own nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Ocean
The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the Age of Discovery, it was known for separating the New World of the Americas (North America and South America) from the Old World of Afro-Eurasia (Africa, Asia, and Europe). Through its separation of Afro-Eurasia from the Americas, the Atlantic Ocean has played a central role in the development of human society, globalization, and the histories of many nations. While the Norse colonization of North America, Norse were the first known humans to cross the Atlantic, it was the expedition of Christopher Columbus in 1492 that proved to be the most consequential. Columbus's expedition ushered in an Age of Discovery, age of exploration and colonization of the Americas by European powers, most notably Portuguese Empire, Portugal, Spanish Empire, Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barents Sea
The Barents Sea ( , also ; , ; ) is a marginal sea of the Arctic Ocean, located off the northern coasts of Norway and Russia and divided between Norwegian and Russian territorial waters.World Wildlife Fund, 2008. It was known earlier among Russians as the Northern Sea, Pomorsky Sea or Murman Sea ("Norse Sea"); the current name of the sea is after the historical Netherlands, Dutch navigator Willem Barentsz. The Barents Sea is a rather shallow Continental shelf, shelf sea with an average depth of , and it is an important site for both fishing and hydrocarbon exploration.O. G. Austvik, 2006. It is bordered by the Kola Peninsula to the south, the shelf edge towards the Norwegian Sea to the west, the archipelagos of Svalbard to the northwest, Franz Josef Land to the northeast and Novaya Zemlya to the east. The islands of Novaya Zemlya, an extension of the northern end of the Ural Mountains, separate the Barents Sea from the Kara Sea. Although part of the Arctic Ocean, the Barents Sea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
