The volcano was originally named in 1951, on a map by the United States Geological Survey. Its name was taken after a plateau located on the northern side of the volcano's main summit, taking the appearance of an anvil.[1]
Locationedit
Anvil Peak is located on Semisopochnoi Island, in the Rat Islands of the western Aleutian Islands. It is one of the seven hills with a summit crater on the island.[2] It is the highest point on the island as well as the highest point on all of the Rat Islands.[3] It is located further north than any of the other hills on the island,[2] taking up a large amount of the northern part of the island.[4] The volcano is located 161 miles (259 km) away from Atka, 237 miles (381 km) from Shemya, and 263 miles (423 km) from Attu.[5]
Geologyedit
Anvil Peak has two summits, which are both volcanic cones. The larger main summit is 1,221 metres (4,006 ft) tall,[5] making it the highest point on the island. This summit is surrounded by ravines, which contain snow at certain times of the year. The peak is part of the old rim of a crater on the volcano, which had been slightly lowered due to erosion.[6]
A plateau is located north of this summit, which is what the volcano was named after.[1] The plateau is about 1,200 feet (370 m) wide and is almost completely flat. Six lava flows, about 20 feet (6.1 m) wide each, are located beneath this area. These flows are visible on all except one of the sides of the cliffs holding up the flat area, and had previously been located inside of the crater on the volcano. The other summit is located southwest of the main summit, and is slightly shorter.[6]
It is not known exactly when Anvil Peak first formed, but it is believed to have formed after Mount Cerberus.[7] According to the Global Volcanism Program of the Smithsonian Institution, its formation occurred during the late Pleistocene epoch.[4] It has not erupted in recent times; it is thought that its last activity was probably thousands of years ago.[7] Anvil Peak has experienced deep erosion, more so than the other cones on the islands, which is partially due to its height.[6]
Referencesedit
^ abOrth, Donald J. (1967). Dictionary of Alaska Place Names. U.S. Government Printing Office. p. 83. Retrieved 14 November 2018.
^ ab"Semisopochnoi Island, Alaska". NASA Earth Observatory. Retrieved 16 November 2018.
^"Anvil Peak". Peakbagger.com. Retrieved 14 November 2018.
^ ab"Report on Semisopochnoi (United States)". Global Volcanism Program. Retrieved 16 November 2018.
^ abcGeological Survey (U.S.) (1949). Geological Survey Bulletin. U.S. Department of the Interior, Geological Survey; Washington, D.C. pp. 486–488. Retrieved 14 November 2018.
^ abLu, Zhong; Dzurisin, Daniel (2014). InSAR Imaging of Aleutian Volcanoes: Monitoring a Volcanic Arc from Space (illustrated ed.). Springer Science & Business Media. p. 103. ISBN3642003486. Retrieved 14 November 2018.
December 14, 2023
anvil, peak, cone, volcano, located, aleutian, islands, alaska, united, states, location, semisopochnoi, island, alaskahighest, pointelevation1, coordinates51, 98605, 60313, 98605, 60313geographylocationaleutian, islands, alaska, united, statesgeologymountain,. Anvil Peak is a cone volcano located in Aleutian Islands Alaska United States Anvil PeakAnvil PeakLocation on the Semisopochnoi Island in AlaskaHighest pointElevation1 221 m 4 006 ft Coordinates51 59 10 N 179 36 11 E 51 98605 N 179 60313 E 51 98605 179 60313GeographyLocationAleutian Islands Alaska United StatesGeologyMountain typeVolcano Contents 1 Etymology 2 Location 3 Geology 4 ReferencesEtymology editThe volcano was originally named in 1951 on a map by the United States Geological Survey Its name was taken after a plateau located on the northern side of the volcano s main summit taking the appearance of an anvil 1 Location editAnvil Peak is located on Semisopochnoi Island in the Rat Islands of the western Aleutian Islands It is one of the seven hills with a summit crater on the island 2 It is the highest point on the island as well as the highest point on all of the Rat Islands 3 It is located further north than any of the other hills on the island 2 taking up a large amount of the northern part of the island 4 The volcano is located 161 miles 259 km away from Atka 237 miles 381 km from Shemya and 263 miles 423 km from Attu 5 Geology editAnvil Peak has two summits which are both volcanic cones The larger main summit is 1 221 metres 4 006 ft tall 5 making it the highest point on the island This summit is surrounded by ravines which contain snow at certain times of the year The peak is part of the old rim of a crater on the volcano which had been slightly lowered due to erosion 6 A plateau is located north of this summit which is what the volcano was named after 1 The plateau is about 1 200 feet 370 m wide and is almost completely flat Six lava flows about 20 feet 6 1 m wide each are located beneath this area These flows are visible on all except one of the sides of the cliffs holding up the flat area and had previously been located inside of the crater on the volcano The other summit is located southwest of the main summit and is slightly shorter 6 It is not known exactly when Anvil Peak first formed but it is believed to have formed after Mount Cerberus 7 According to the Global Volcanism Program of the Smithsonian Institution its formation occurred during the late Pleistocene epoch 4 It has not erupted in recent times it is thought that its last activity was probably thousands of years ago 7 Anvil Peak has experienced deep erosion more so than the other cones on the islands which is partially due to its height 6 References edit a b Orth Donald J 1967 Dictionary of Alaska Place Names U S Government Printing Office p 83 Retrieved 14 November 2018 a b Semisopochnoi Island Alaska NASA Earth Observatory Retrieved 16 November 2018 Anvil Peak Peakbagger com Retrieved 14 November 2018 a b Report on Semisopochnoi United States Global Volcanism Program Retrieved 16 November 2018 a b Anvil Peak Introduction Alaska Volcano Observatory Retrieved 14 November 2018 a b c Geological Survey U S 1949 Geological Survey Bulletin U S Department of the Interior Geological Survey Washington D C pp 486 488 Retrieved 14 November 2018 a b Lu Zhong Dzurisin Daniel 2014 InSAR Imaging of Aleutian Volcanoes Monitoring a Volcanic Arc from Space illustrated ed Springer Science amp Business Media p 103 ISBN 3642003486 Retrieved 14 November 2018 Retrieved from https en wikipedia org w index php title Anvil Peak amp oldid 944864945, wikipedia, wiki, book, books, library,
