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volcán Brothers

Brothers

Caldera · New Zealand · 1350 m (submarino)

Submarine hydrothermal activity occurs at Brothers volcano, as seen here at this tall (up to 4 m high), active black smoker chimney, which is part of a large field of vents on the NW caldera wall. The oval-shaped caldera is 3-3.5 km wide and contains a post-caldera lava dome constructed on the S caldera floor.
Submarine hydrothermal activity occurs at Brothers volcano, as seen here at this tall (up to 4 m high), active black smoker chimney, which is part of a large field of vents on the NW caldera wall. The oval-shaped caldera is 3-3.5 km wide and contains a post-caldera lava dome constructed on the S caldera floor. · Foto: Image courtesy of New Zealand-American Submarine Ring of Fire 2005 Exploration, NOAA Vents Program. · Wikimedia Commons
Tipo
Caldera
País
New Zealand
Región
Tonga-Kermadec Volcanic Regions / Southern Kermadec Volcanic Arc
Altitud
1350 m (submarino)
Coordenadas
-34.875, 179.067
Última erupción
Desconocido
Contexto tectónico
Subduction zone / Oceanic crust (< 15 km)
Forma volcánica
Caldera
Roca principal
Dacite
Resumen geológico

The submarine Brothers volcano, located NE of the Healy submarine volcano, contains an oval-shaped summit caldera 3-3.5 km elongated NW-SE. The high point of the dominantly dacitic edifice lies on the NW caldera rim at about 1,350 m below the ocean surface. The caldera floor is at about 1,850 m depth, and a post-caldera lava dome partially merges with the southern caldera wall. There is significant hydrothermal activity, including a large field of "black smoker" vents on the NW caldera wall and vents on the post-caldera dome.

Resumen de Wikipedia

El monte submarino Brothers es un volcán submarino del océano Pacífico situado en el arco de Kermadec, a 340 kilómetros al noreste de la isla Whakaari/White de Nueva Zelanda. Es uno de los montes submarinos de la dorsal sur de Kermadec.

Wikipedia · CC BY-SA · Leer artículo completo →

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