Unnamed volcano

Central Andean Arc at 25.1°S

火砕丘 · Argentina · 4652m

This unnamed scoria cone near the Chile/Argentina border has produced lava flows to the east, visible in this July 2019 Planet Labs satellite image Monthly Mosaic (N is at the top; this image is approximately 8.5 km across). The visible flows have clear lobate or broader flow boundaries, levees, and pressure ridges, while other lavas have been buried by sand deposits. · 写真: Satellite image courtesy of Planet Labs Inc., 2019 (https://www.planet.com/).

タイプ: 火砕丘
国: Argentina
地域: South America Volcanic Regions / Central Andean Volcanic Arc
標高: 4652m
座標: -25.078, -68.266
最終噴火: 不明
テクトニクス環境: Subduction zone / Continental crust (> 25 km)
火山地形: Minor
主要岩石: Andesite / Basaltic Andesite

地質学的概要

An isolated basaltic andesite cinder cone was constructed on top of Miocene ignimbrites and lava flows between the Corrida de Cori range on the Chile/Argentina border and the Salar Río Grande in Argentina. Blocky lava flows from the cone descended in a broad lobe to the SE and in a narrow tongue to the E nearly to the Salar Río Grande. A second smaller vent lies about 800 m NW of the cinder cone. The relatively fluid lava flows display surficial breadcrust textures and were considered by Richards and Villeneuve (2002) to be very young, possibly of Holocene age.

噴火履歴

詳細タイムライン

噴火記録はありません。

外部リンク

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