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Antillanca Group

Antillanca Volcanic Complex

成層火山 · Chile · 1979m

Casablanca volcano, whose summit is visible at the upper right, is the highest peak of the Antillanca volcano group. Raihuen crater (lower left) lies at the base of Casablanca. The Antillanca Group is a cluster of late-Pleistocene to Holocene scoria cones, maars, and small stratovolcanoes covering an area of 380 km2 SE of Lago Puyehue and NE of Lago Rupanco. Older late-Pleistocene stratovolcanoes have been extensively dissected by glaciers, but numerous small Holocene volcanic centers are present.
Casablanca volcano, whose summit is visible at the upper right, is the highest peak of the Antillanca volcano group. Raihuen crater (lower left) lies at the base of Casablanca. The Antillanca Group is a cluster of late-Pleistocene to Holocene scoria cones, maars, and small stratovolcanoes covering an area of 380 km2 SE of Lago Puyehue and NE of Lago Rupanco. Older late-Pleistocene stratovolcanoes have been extensively dissected by glaciers, but numerous small Holocene volcanic centers are present. · 写真: Photo by Klaus Dorsch, 2001 (University of Munich). · Wikimedia Commons
タイプ
成層火山
国
Chile
地域
South America Volcanic Regions / Southern Andean Volcanic Arc
標高
1979m
座標
-40.783, -72.150
最終噴火
-230年
テクトニクス環境
Subduction zone / Continental crust (> 25 km)
火山地形
Composite
主要岩石
Basalt / Picro-Basalt
地質学的概要

The Antillanca Volcanic Complex is a cluster of late-Pleistocene to Holocene basaltic-to-andesitic scoria cones, maars, and small stratovolcanoes covering an area of 380 km2 SE of Lago Puyehue and NE of Lago Rupanco. The most prominent edifice is the Holocene Casablanca stratovolcano, which has a truncated conical profile and produced major explosive eruptions about 2,910 and 2,260 radiocarbon years ago. Older late-Pleistocene stratovolcanoes, such as Sarnoso to the SW and Fiuchá to the NW, are extensively dissected by glaciers. Fissures oriented in four major directions influence the orientation of the cones. Thermal areas are found in scattered locations on the NW side of the complex.

Wikipedia の要約

英語版の要約

The Antillanca Group is a volcanic group of scoria cones, maars and small stratovolcanoes, in Chile. Casablanca stratovolcano is the tallest volcano of the group, which shelters the Antillanca ski resort on its west flank. Aguas Calientes and Puyehue Hot springs also form part of this volcanic group. The complex encompasses 380 km2 and to the west is bordered by the lakes Puyehue and Rupanco.

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噴火履歴

概要 (VEI時系列)
バーをクリックすると個別の噴火が表示されます
960 BCE~887 BCE · 1件 · 最大 VEI 5303 BCE~230 BCE · 1件 · 最大 VEI 5960 BCE814 BCE595 BCE449 BCE303 BCE

詳細タイムライン

  1. 紀元前 230年 (±200年)VEI 5地質学的推定
    BCE 230 ~ 進行中
    Casablanca (Raihuén crater)
  2. 紀元前 960年 (±150年)VEI 5地質学的推定
    BCE 960 ~ 進行中

外部リンク

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