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Gada Ale

成層火山 · Ethiopia · 287m

Gada Ale (upper right) is the most prominent volcano at the northern end of the Erta Ale Range. The 287-m-high volcano is seen here from the S, with two small lakes on its lower NW flank. Lake Aasale (Lake Karum) at about 116 m below sea level, is in the background. Prominent fissures (lower right) are adjacent to an uplifted salt dome (lower left). Salt diapir uplift has affected both this 2-km-wide area W of the volcano (where lava flows are uplifted as much as 100 m) and Gada Ale itself.
Gada Ale (upper right) is the most prominent volcano at the northern end of the Erta Ale Range. The 287-m-high volcano is seen here from the S, with two small lakes on its lower NW flank. Lake Aasale (Lake Karum) at about 116 m below sea level, is in the background. Prominent fissures (lower right) are adjacent to an uplifted salt dome (lower left). Salt diapir uplift has affected both this 2-km-wide area W of the volcano (where lava flows are uplifted as much as 100 m) and Gada Ale itself. · 写真: Copyrighted photo by Marco Fulle, 2002 (Stromboli On-Line, http://stromboli.net).
タイプ
成層火山
国
Ethiopia
地域
Eastern Africa Volcanic Regions / Afar Rift Volcanic Province
標高
287m
座標
13.975, 40.408
最終噴火
不明
テクトニクス環境
Rift zone / Intermediate crust (15-25 km)
火山地形
Composite
主要岩石
Basalt / Picro-Basalt
地質学的概要

Gada Ale (also known as Kebrit Ale), the most prominent volcano at the northern end of the Erta Ale Range, is formed of interstratified lava flows and hyaloclastites. Fumarolic activity is continuing, and the summit crater contains a small lake with hot mud. Like other Erta Ale Range volcanoes, Gada Ale is considered to be of Holocene age (Barberi and Varet, 1970). A fissure on the SE flank has produced spatter cones and a cinder cone; the latter fed lava flows that reach to Lake Bakili. The symmetrical Catherine tuff ring is located along this same SE trend west of Lake Bakili, and other tuff rings occur on the east side of the lake. A 2-km-wide salt dome to the west has uplifted lava flows as much as 100 m, and the structure of Gada Ale itself appears to be related to salt diapir uplift.

Wikipedia の要約

英語版の要約

Gada Ale is a stratovolcano located in the Afar Region, Ethiopia. It is the most prominent volcano at the northern end of the Erta Ale Range.

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