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ニュージーランド · 成層火山

Clark Seamount

Clark

タイプ
成層火山
標高
860m (海底)
最終噴火
不明
Diffuse hydrothermal venting and sulfide chimneys were observed near the summit of Clark volcano during a New Zealand-American NOAA Vents Program expedition in 2005. Hot water (221°C, 430°F) was sampled at the base of this sulfide chimney, which is almost 6 m high. Clark submarine volcano lies near the lower end of the Southern Kermadec Arc and is the southernmost volcano of the submarine chain that displays known hydrothermal activity.
Diffuse hydrothermal venting and sulfide chimneys were observed near the summit of Clark volcano during a New Zealand-American NOAA Vents Program expedition in 2005. Hot water (221°C, 430°F) was sampled at the base of this sulfide chimney, which is almost 6 m high. Clark submarine volcano lies near the lower end of the Southern Kermadec Arc and is the southernmost volcano of the submarine chain that displays known hydrothermal activity. · 写真: Image courtesy of New Zealand-American Submarine Ring of Fire 2005 Exploration, NOAA Vents Program.
タイプ
成層火山
国
ニュージーランド
地域
トンガ・ケルマデック / Southern Kermadec Volcanic Arc
標高
860m (海底)
座標
-36.446, 177.839
最終噴火
不明
テクトニクス環境
沈み込み帯 / 海洋地殻 (< 15 km)
火山地形
複成火山
主要岩石
玄武岩 / ピクライト質玄武岩
地質学的概要

The submarine Clark stratovolcano lies near the southern end of the Southern Kermadec arc. This basaltic and dacitic edifice consists of a basal substrate of massive lava flows, pillow lavas, and pillow tubes overlain by volcaniclastic sediments. Craters are present along the complex crest. Clark is the southernmost volcano of the submarine chain that displays hydrothermal activity. Diffuse hydrothermal venting and sulfide chimneys were observed near the summit during a New Zealand-American NOAA Vents Program expedition in 2006.

Wikipedia の要約

英語版の要約

Clark is a dormant submarine volcano located off the northern coast of New Zealand and is one of the South Kermadec Ridge Seamounts.

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