Mount E: Difference between revisions
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==Geology== |
==Geology== |
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Mount E consists of [[alkali|non-alkali]], [[mafic]], [[volcanic rock]].<ref name="seamless">{{cite web|url=http://riodb02.ibase.aist.go.jp/db084/kihon/hokkaido_e.xml|title=Hokkaido|date=Feb |
Mount E consists of [[alkali|non-alkali]], [[mafic]], [[volcanic rock]].<ref name="seamless">{{cite web|url=http://riodb02.ibase.aist.go.jp/db084/kihon/hokkaido_e.xml|title=Hokkaido|date=Feb 18, 2010 |work=Seamless digital geological map of Japan 1: 200,000.|publisher=The Geological Survey of Japan, AIST |accessdate=25 April 2010}}</ref> The [[andesitic]] volcano is topped with a [[lava dome]].<ref name="smithsonian" /><ref name="qvoj" /> |
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==Eruptive history== |
==Eruptive history== |
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Mount E last erupted on June 8, 1874. This eruption consisted of phreatic explosions and was rated a 1 on the VEI scale.<ref name="smithsonian">{{cite gvp|vnum=0805-011=|title=E-san|accessdate=2010-04-22}}</ref> |
Mount E last erupted on June 8, 1874. This eruption consisted of phreatic explosions and was rated a 1 on the VEI scale.<ref name="smithsonian">{{cite gvp|vnum=0805-011=|title=E-san|accessdate=2010-04-22}}</ref> |
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The oldest recorded eruption started November |
The oldest recorded eruption started November 18, 1846. The eruption triggered [[lahar]]s damaging several houses and causing fatalities.<ref name="smithsonian" /><ref name="qvoj">{{cite web|url=http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/vol/185.htm|title=E-SAN|year=2006 |work=Quaternary Volcanoes in Japan|publisher=Geological Survey of Japan, AIST|accessdate=25 April 2010}}</ref> |
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[[Radiocarbon dating]] and [[tephrochronology]] indicate five other eruptions predating the historical records in the approximate years 1350, 550 BC, 1050 BC, 3900 BC ±100 years, 7050 BC. The eruption in 7050 BC was the largest with a VEI of 3.<ref name="smithsonian" /> |
[[Radiocarbon dating]] and [[tephrochronology]] indicate five other eruptions predating the historical records in the approximate years 1350, 550 BC, 1050 BC, 3900 BC ±100 years, 7050 BC. The eruption in 7050 BC was the largest with a VEI of 3.<ref name="smithsonian" /> |
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Revision as of 11:47, 27 December 2013
| Mount E | |
|---|---|
| 恵山 | |
  Mount E Location of Mount E in Japan. | |
| Highest point | |
| Elevation | 617.6 m (2,026 ft)[1] |
| Listing | List of mountains and hills of Japan by height List of volcanoes in Japan |
| Naming | |
| Language of name | Japanese |
| Geography | |
| Location | Hokkaidō, Japan |
| Parent range | Kameda Peninsula |
| Topo map | Geospatial Information Authority 25000:1 恵山 50000:1 尻屋崎 |
| Geology | |
| Age of rock | Pleistocene |
| Mountain type | stratovolcano |
| Last eruption | 1874 |
Mount E (恵山, E-san) is an active stratovolcano of the Kameda peninsula. It is located in Hakodate, Hokkaidō, Japan. Mount E is part of Esan Prefectural Natural Park.[2]
Geology
Mount E consists of non-alkali, mafic, volcanic rock.[3] The andesitic volcano is topped with a lava dome.[4][5]
Eruptive history
Mount E last erupted on June 8, 1874. This eruption consisted of phreatic explosions and was rated a 1 on the VEI scale.[4]
The oldest recorded eruption started November 18, 1846. The eruption triggered lahars damaging several houses and causing fatalities.[4][5]
Radiocarbon dating and tephrochronology indicate five other eruptions predating the historical records in the approximate years 1350, 550 BC, 1050 BC, 3900 BC ±100 years, 7050 BC. The eruption in 7050 BC was the largest with a VEI of 3.[4]
References
- ^ a b Geospatial Information Authority topographic map 恵山
- ^ "恵山道立自然公園" (in Japanese). HOKKAIDO Government. Retrieved 23 April 2010.
- ^ "Hokkaido". Seamless digital geological map of Japan 1: 200,000. The Geological Survey of Japan, AIST. Feb 18, 2010. Retrieved 25 April 2010.
- ^ a b c d "E-san". Global Volcanism Program. Smithsonian Institution. Retrieved 2010-04-22.
- ^ a b "E-SAN". Quaternary Volcanoes in Japan. Geological Survey of Japan, AIST. 2006. Retrieved 25 April 2010.
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