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Tana (volcano)
Tana is an eroded pair of east–west trending stratovolcanic Volcanic cones, cones east of the more known Mount Cleveland (Alaska), Cleveland volcano, and is located on the eastern end of the Chuginadak Island of the Islands of Four Mountains of the Aleutian Islands in Alaska. Geography Tana sits on the eastern end of Chuginadak Island, which is an island northeast of Herbert Island, south of Kagamil Island and southeast of Carlisle Island which are all a part of the Aleutian Islands. The island consists of 2 main volcanoes, one of them being Tana, and several young cinder cones which make up the thin land strip between the volcano and Cleveland. The nearest center of population is Nikolski, Alaska, Nikolski, a town in Umnak Island, with a distance of . Geologic setting Tana is the part of a volcanic arc known as Aleutian Arc, which spans across the Aleutian island chain and includes many volcanoes. South of the volcano is the Aleutian Trench, which is trench along the conv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tana Volcano
Tana may refer to: Places Africa * Lake Tana, a lake in Ethiopia (and a source of the Nile River) * Tana Qirqos, an island in the eastern part of Lake Tana in Ethiopia, near the mouth of the Gumara River * Tana River County, a county of Coast Province, Kenya * Tana River (Kenya), the longest river in Kenya * ''Tana'', a shorthand form of Antananarivo, the capital of Madagascar * Tana, Guinea, a small village in Guinea Americas * Tana Glacier, a glacier in the Valdez–Cordova Census Area, Alaska * Tana River (Alaska), a river in the Valdez–Cordova Census Area, Alaska * Tana River (Cuba), a river of southern Cuba * Tana (volcano), a volcano on Chuginadak Island, Alaska Asia * Kyzyl-Tana, a village in the Osh Province of Kyrgyzstan * Tana Station, a railway station in the Aoba-ku, Yokohama, Kanagawa Prefecture, Japan * Tana, Kukin Tana, or Tana Mayambu, former names of Thane, India Europe * Tana or Tanais, a medieval city and bishopric on the Sea of Azov * Tana Municipality, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlisle Island
Carlisle ( , ; from ) is a city in the Cumberland district of Cumbria, England. Carlisle's early history is marked by the establishment of a settlement called Luguvalium to serve forts along Hadrian's Wall in Roman Britain. Due to its proximity to Scotland (being located south of the current Anglo-Scottish border), Carlisle Castle and the city became an important military stronghold in the Middle Ages. The castle served as a prison for Mary, Queen of Scots in 1568 and currently hosts the Duke of Lancaster's Regiment and the Border Regiment Museum. A priory was built in the early 12th century, which subsequently became Carlisle Cathedral in 1133 on the creation of the Diocese of Carlisle. As the seat of a diocese, Carlisle therefore gained city status. Carlisle also served as the county town of the historic county of Cumberland from the county's creation in the 12th century. In the 19th century, the introduction of textile manufacture during the Industrial Revolution began a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratovolcanoes Of Alaska
A stratovolcano, also known as a composite volcano, is a typically conical volcano built up by many alternating layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and explosive eruptions. Some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and solidifies 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 can travel as far as 8 km (5 mi). The term ''composite volcano'' is used because strata are usually mixed and uneven instead of neat layers. They are among the most common types of volcanoes; more than 700 stratovolcanoes have erupted lava during the Holocene Epoch (the last 11,700 years), and many older, now ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Volcanoes In The United States
This article contains a list of volcanoes in the United States and its territories. Alaska American Samoa Arizona California Colorado Hawaii Idaho Illinois Louisiana Michigan Mississippi Missouri Nevada New Hampshire New Jersey New Mexico North Carolina Northern Mariana Islands Oregon Texas Utah Virginia Washington Wyoming See also *Geothermal energy in the United States *List of Cascade volcanoes *List of large volume volcanic eruptions in the Basin and Range Province *List of volcanoes in Canada *List of volcanoes in Mexico *List of volcanoes in Russia *List of volcanic craters in Alaska *List of volcanic craters in Arizona *List of lava flows in Arizona *List of Yellowstone geothermal features *National Volcano Early Warning and Monitoring System *United States Geological Survey National Volcanic Threat Assessment References External links 2018 Update to the U.S. Geological Survey National Vol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mudpot
A mudpot, or mud pool, is a type of acidic hot spring, or fumarole, with limited water. It usually takes the form of a pool of bubbling mud, as a result of the acid and microorganisms decomposing surrounding rock into clay and mud. Description The mud of a mudpot takes the form of a Viscosity, viscous, often bubbling, slurry. As the boiling mud is often squirted over the brims of the mudpot, a form resembling a mini-volcano of mud starts to build up, sometimes reaching heights of . Although mudpots are often called "mud volcanoes", true mud volcanoes are very different in nature. The mud of a mudpot is generally of white to greyish color, but is sometimes stained with reddish or pink spots from iron compounds. When the slurry is particularly colorful, the feature may be referred to as a paint pot. Geology Mudpots form in high-temperature Geothermal activity, geothermal areas where water supply is short. The little water that is available rises to the surface at a spot where the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fumaroles
A fumarole (or fumerole) is a vent in the surface of the Earth or another rocky planet from which hot volcanic gases and vapors are emitted, without any accompanying liquids or solids. Fumaroles are characteristic of the late stages of volcanic activity, but fumarole activity can also precede a volcanic eruption and has been used for eruption prediction. Most fumaroles die down within a few days or weeks of the end of an eruption, but a few are persistent, lasting for decades or longer. An area containing fumaroles is known as a fumarole field. The predominant vapor emitted by fumaroles is steam, formed by the circulation of groundwater through heated rock. This is typically accompanied by volcanic gases given off by magma cooling deep below the surface. These volcanic gases include sulfur compounds, such as various sulfur oxides and hydrogen sulfide, and sometimes hydrogen chloride, hydrogen fluoride, and other gases. A fumarole that emits significant sulfur compounds is some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tana Flank
Tana may refer to: Places Africa * Lake Tana, a lake in Ethiopia (and a source of the Nile River) * Tana Qirqos, an island in the eastern part of Lake Tana in Ethiopia, near the mouth of the Gumara River * Tana River County, a county of Coast Province, Kenya * Tana River (Kenya), the longest river in Kenya * ''Tana'', a shorthand form of Antananarivo, the capital of Madagascar * Tana, Guinea, a small village in Guinea Americas * Tana Glacier, a glacier in the Valdez–Cordova Census Area, Alaska * Tana River (Alaska), a river in the Valdez–Cordova Census Area, Alaska * Tana River (Cuba), a river of southern Cuba * Tana (volcano), a volcano on Chuginadak Island, Alaska Asia * Kyzyl-Tana, a village in the Osh Province of Kyrgyzstan * Tana Station, a railway station in the Aoba-ku, Yokohama, Kanagawa Prefecture, Japan * Tana, Kukin Tana, or Tana Mayambu, former names of Thane, India Europe * Tana or Tanais, a medieval city and bishopric on the Sea of Azov * Tana Municipality ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aleutian Trench
The Aleutian Trench (or Aleutian Trough) is an oceanic trench along a convergent plate boundary which runs along the southern coastline of Alaska and the Aleutian islands. The trench extends for from a triple junction in the west with the Ulakhan Fault and the northern end of the Kuril–Kamchatka Trench, to a junction with the northern end of the Queen Charlotte Fault system in the east. It is classified as a "marginal trench" in the east as it runs along the margin of the continent. The subduction along the trench gives rise to the Aleutian Arc, a volcanic island arc, where it runs through the open sea west of the Alaska Peninsula. As a convergent plate boundary, the trench forms part of the boundary between two tectonic plates. Here, the Pacific plate is being subducted under the North American plate at a dip angle of nearly 45°. The rate of closure is per year. The Pacific plate subducting under the North American plate, leads to increased faulting. This subductio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tana And Cleveland Volcanoes
Tana may refer to: Places Africa * Lake Tana, a lake in Ethiopia (and a source of the Nile River) * Tana Qirqos, an island in the eastern part of Lake Tana in Ethiopia, near the mouth of the Gumara River * Tana River County, a county of Coast Province, Kenya * Tana River (Kenya), the longest river in Kenya * ''Tana'', a shorthand form of Antananarivo, the capital of Madagascar * Tana, Guinea, a small village in Guinea Americas * Tana Glacier, a glacier in the Valdez–Cordova Census Area, Alaska * Tana River (Alaska), a river in the Valdez–Cordova Census Area, Alaska * Tana River (Cuba), a river of southern Cuba * Tana (volcano), a volcano on Chuginadak Island, Alaska Asia * Kyzyl-Tana, a village in the Osh Province of Kyrgyzstan * Tana Station, a railway station in the Aoba-ku, Yokohama, Kanagawa Prefecture, Japan * Tana, Kukin Tana, or Tana Mayambu, former names of Thane, India Europe * Tana or Tanais, a medieval city and bishopric on the Sea of Azov * Tana Municipality ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umnak Island
Umnak (; ) is one of the Fox Islands of the Aleutian Islands. With of land area, it is the third largest island in the Aleutian archipelago and the 19th largest island in the United States. The island is home to a large volcanic caldera on Mount Okmok and the only field of geysers in Alaska. It is separated from Unalaska Island by Umnak Pass. In 2000, Umnak was permanently inhabited by only 39 people and by 2010, around 18, placing the settlement of Nikolski in difficulty and its school was closed. History The earliest known settlement on Umnak Island is at Anangula and is 8,400 years old. Anangula was later abandoned and the Sandy Beach site became occupied, along with Idaliuk and Chaluka. Most of the early settlements on Umnak were located along the streams. A major geologic event was the cutting of strand flats during the Hypsithermal period, about 8250 to 3000 years ago, which led to a greater natural food supply on the island for the settlers. Umnak Island was first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
