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Aluto


Aluto
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Aluto
Alutoの位置
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Aluto
最高地点
標高 2,365 m [7,759 ft]
プロミネンス 765 m [2,510 ft]
アイソレーション {{convert/{{{2}}}|{{{1}}}|0|||||||r=re|d=LoffAoffDbSoff|s=}}
総称 List of volcanoes in Ethiopia
座標 {{#invoke:Coordinates|coordinsert|東経38度46分16秒北緯7.787度 東経38.771度7.787; 38.771|type:mountain|}} 
地形
所在地 Ethiopia
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州/地方 テンプレート:Enum
地区 テンプレート:Enum
自治体 テンプレート:Enum
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細分 テンプレート:Enum
地質
岩石の年代 テンプレート:Enum
山の種類 Stratovolcano
岩石の種類 テンプレート:Enum
最新の噴火 ~ 50 BC
Project.svg プロジェクト 山

Aluto (also known as Alutu) (2,365メートル (7,759 ft)) is a dormant stratovolcano in Ethiopia, located in the Ethiopian Rift Valley in southern Oromia region between Lake Langano and Lake Ziway. It is the site of the Aluto–Langano Geothermal Power Station.

Geology

It features numerous vents along E-W and NNW-SSE trending fissures which converge at the coordinates of the volcano center, which is the center of a hypothesized caldera surrounded by rims, visible especially in the south and west. The largest vent is 1 km × 0.5 km in size just SE of the volcano center and along the SE rim of the volcano. The volcano covers a surface area of appr. 25 km2. The silicic volcano center has an eruption history of more than 150,000 years, the last eruption was around 2,000 years ago.

Strong fumarolic activity continues throughout today. The volcano is permanently inflating and deflating with the strongest movements at the center of the hypothesized caldera, indicating some activity around 5 km below the volcano.[1]

Close to the center of the hypothetical caldera is the site of the high-temperature Aluto–Langano geothermal field with temperatures between 300-400 °C at depths below 1,200 meters. This geothermal field covers an area of about 8 km2.[2]

The field is also the site of the Aluto–Langano Geothermal Power Station, a pilot power plant to explore geothermal energy in Ethiopia.

See also

References

  1. How to turn a volcano into a power station – with a little help from satellites”. The Conversation (2017年11月1日). . 5 September 2018閲覧.
  2. Selamawit Worku Sisay (2016年11月). “Sub-surface Geology and Hydrothermal Alteration of Wells LA-9D and LA-10D of Aluto langano geothermal Field, Ethiopia”. Addis Ababa: Geological Survey of Ethiopia. . 4 September 2018閲覧.

External links

テンプレート:Oromia-geo-stub