Krasheninnikov (volcano)
Krasheninnikov (russian: Крашенинников) is a complex of two overlapping stratovolcanoes inside a large caldera on the eastern coast of Kamchatka Peninsula, Russia. It is located in Kronotsky Nature Reserve to the south of Lake Kronotskoye, and is named after explorer Stepan Krasheninnikov. The tephra Tephra is fragmental material produced by a volcanic eruption regardless of composition, fragment size, or emplacement mechanism. Volcanologists also refer to airborne fragments as pyroclasts. Once clasts have fallen to the ground, they rem ... from the caldera's forming eruption lies on top of material from an eruption that occurred 39,000 years ago. It is believed that the two layers are related. The southern of the two cones was constructed over a 4,500 year period beginning 11,000 years ago. The northern cone formed in the same amount of time, but started forming after the southern cone was complete. The current eruption cycle began approximately 600 years ...
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List Of Volcanoes In Russia
This is a list of active and extinct volcanoes in Russia. European Russia Kamchatka Volcanoes of the Kamchatka Peninsula of the northwestern Pacific Ocean and the Russian Far East. Kuril Islands Volcanoes of the Kuril Islands, in the northwestern Pacific Ocean between the Kamchatka Peninsula and Japan. Other parts of Russia Example References {{Russia topics Russia Lists of coordinates Volcanoes Volcanoes A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates a ...

Kamchatka Peninsula
The Kamchatka Peninsula (russian: полуостров Камчатка, Poluostrov Kamchatka, ) is a peninsula in the Russian Far East, with an area of about . The Pacific Ocean and the Sea of Okhotsk make up the peninsula's eastern and western coastlines, respectively. Immediately offshore along the Pacific coast of the peninsula runs the Kuril–Kamchatka Trench. The Kamchatka Peninsula, the Commander Islands, and the Karaginsky Island, constitute the Kamchatka Krai of the Russia, Russian Federation. The vast majority of the 322,079 inhabitants are ethnic Russians, although about 13,000 are Koryaks (2014). More than half of the population lives in Petropavlovsk-Kamchatsky (179,526 in 2010) and nearby Yelizovo (38,980). The Kamchatka peninsula contains the volcanoes of Kamchatka, a World Heritage Site, UNESCO World Heritage Site. Geography Politically, the peninsula forms part of Kamchatka Krai. The southern tip is called Cape Lopatka. (Lopatka is Russian for s ...
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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 ...
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Eastern Range (Kamchatka)
Eastern Range (,''Vostochny Khrebet'') is a mountain range on the Kamchatka Peninsula, Kamchatka Krai, Russian Far East. It is a complex range mainly consisting of volcanic peaks. Together with the Middle Range, it is one of the two main mountain systems of the peninsula.Восточный хребет / Great Soviet Encyclopedia; in 35 vols. / Ch. ed. Yu. S. Osipov. 2004—2017. Geography The Eastern Range stretches roughly from NNE to SSW for along the eastern part of the peninsula between the southern Karaginsky Gulf at the northern end and Avacha Bay at the southern. The highest point is Klyuchevskaya Sopka, a high stratovolcano. The range is made up of a number of separate ranges having steep western slopes and more gentle eastern ones. The central Kamchatka Depression, with the valley of the Kamchatka River, separates the Eastern Range from the Middle Range of the peninsula to the west.Google Earth The main part of the Eastern Range is part of the East Kamchatka Anticlin ...
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Stratovolcano
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high-to-intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less-viscous mafic magma. Extensive felsic lava flows are uncommon, but have travelled as far as . Stratovolcanoes are sometimes called composite volcanoes because of their composite stratified structure, built up from sequential outpourings of erupted materials. They are among the most common types of volcanoes, in contrast to the less common shield volca ...
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Krasheninnikov Volcanoe
Krasheninnikov may refer to: * Pavel Krasheninnikov, Russian lawyer and politician * Stepan Krasheninnikov, Russian explorer * Yuri Krasheninnikov, Russian beach soccer player * Krasheninnikov (volcano), two stratovolcanoes in Kamtchatka named for Stepan Krasheninnikov * Krasheninnikov Peak Krasheninnikov Peak () is a peak, high, on the south side of the Svarthausane Crags in the Südliche Petermann Range of the Wohlthat Mountains, Antarctica. It was discovered and plotted from air photos by the Third German Antarctic Expedition, 193 ...

Stratovolcano
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high-to-intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less-viscous mafic magma. Extensive felsic lava flows are uncommon, but have travelled as far as . Stratovolcanoes are sometimes called composite volcanoes because of their composite stratified structure, built up from sequential outpourings of erupted materials. They are among the most common types of volcanoes, in contrast to the less common shield volca ...
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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 gone. The ground surface then collapses into the emptied or partially emptied magma chamber, leaving a large depression at the surface (from one to dozens of kilometers in diameter). Although sometimes described as a Volcanic crater, crater, the feature is actually a type of sinkhole, as it is formed through subsidence and collapse rather than an explosion or impact. Compared to the thousands of volcanic eruptions that occur each century, the formation of a caldera is a rare event, occurring only a few times per century. Only seven caldera-forming collapses are known to have occurred between 1911 and 2016. More recently, a caldera collapse occurred at Kīlauea, Hawaii in 2018. Etymology The term ''caldera'' comes from Spanish language, S ...
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Kronotsky Nature Reserve
Kronotsky (Кроноцкий) Nature Reserve (also: ''Kronotsky Biosphere Zapovednik'') is a Russian 'zapovednik' (strict nature reserve) reserved for the study of natural sciences in the remote Russian Far East, on the coast of the Kamchatka Peninsula. It was created in 1934 and its current boundary contains an area of . The largest lake in the reserve is Lake Kronotskoye, which covers an area of . It also has Russia's only geyser basin, plus several mountain ranges with numerous volcanoes, both active and extinct. Due to its often harsh climate and its mix of volcanoes and geysers, it is frequently described as the Land of Fire and Ice.Quammen, David (2009Fragile Russian Wilderness: The Kronotsky Nature Reserve Is Best Appreciated From Afar National Geographic, p.62, January 2009, Vol. 215, No.1 Kronotsky is mainly accessible only to scientists, plus approximately 3,000 tourists annually who pay a fee equivalent to US$700 to travel by helicopter for a single day's visit. It is ...
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Lake Kronotskoye
Lake Kronotskoye (russian: Кроноцкое озеро) is a triangle-shaped lake located in Kamchatka Krai, Russia, north of the Valley of Geysers and away from the east coast of the Kamchatka Peninsula. It is named after the nearby volcano Kronotsky, part of the Eastern Range, whose name presumably derives from Itelmen ''krának'', "high stone mountain." It was formed about 10,000 years ago when lava and pyroclastic flows from eruptions of the Kronotsky and Krasheninnikov volcanoes dammed the Kronotskaya River. Lake Kronotskoye covers an area of and has an average depth of and a volume of . The lake drains an area of , with the Listvennichnaya, Unana and Uzon being the largest rivers to flow into it. The lake drains into Kronotskaya River in its southeast corner, which flows southeast into the Pacific Ocean. Lake Kronotskoye freezes over from late December to mid-May to a depth of one metre. It is a dimictic lake, reaching isothermy in July and late November. The wat ...
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Stepan Krasheninnikov
Stepan Petrovich Krasheninnikov (russian: Степа́н Петро́вич Крашени́нников; – ) was a Russian explorer of Siberia, naturalist and geographer who gave the first full description of Kamchatka in the early 18th century. He was elected to the Russian Academy of Sciences in 1745. The Krasheninnikov Volcano on Kamchatka is named in his honour. Early life Krasheninnikov was educated in the Slavic Greek Latin Academy of Moscow (1724–32), where Lomonosov was his class-mate. As part of Vitus Bering’s extensive preparations for the Second Kamchatka Expedition, 12 students from the academy were selected as potential student interns or assistants for the professors – Krasheninnikov being one of them. Thus, he furthered his education in St Petersburg before embarking upon the Second Kamchatka Expedition (1731–42). The Second Kamchatka Expedition Krasheninnikov was to study plants, animals and minerals, but in addition he developed a strong interes ...
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Tephra
Tephra is fragmental material produced by a volcanic eruption regardless of composition, fragment size, or emplacement mechanism. Volcanologists also refer to airborne fragments as pyroclasts. Once clasts have fallen to the ground, they remain as tephra unless hot enough to fuse into pyroclastic rock or tuff. Tephrochronology is a geochronological technique that uses discrete layers of tephra—volcanic ash from a single eruption—to create a chronological framework in which paleoenvironmental or archaeological records can be placed. When a volcano explodes, it releases a variety of tephra including ash, cinders, and blocks. These layers settle on the land and, over time, sedimentation occurs incorporating these tephra layers into the geologic record. Often, when a volcano explodes, biological organisms are killed and their remains are buried within the tephra layer. These fossils are later dated by scientists to determine the age of the fossil and its place within the geolo ...
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