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Nueva Zelanda · Estratovolcán

Clark Seamount

Clark

Tipo
Estratovolcán
Altitud
860 m (submarino)
Última erupción
Desconocido
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. · Foto: Image courtesy of New Zealand-American Submarine Ring of Fire 2005 Exploration, NOAA Vents Program.
Tipo
Estratovolcán
País
Nueva Zelanda
Región
Tonga y Kermadec / Southern Kermadec Volcanic Arc
Altitud
860 m (submarino)
Coordenadas
-36.446, 177.839
Última erupción
Desconocido
Contexto tectónico
Zona de subducción / Corteza oceánica (< 15 km)
Forma volcánica
Compuesto
Roca principal
Basalto / Picrobasalto
Resumen geológico

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.

Resumen de Wikipedia

Resumen en inglés

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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⚠ Solo como referencia. No apto para respuesta ante emergencias.