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Sarigan

Estratovolcán · United States · 494 m

The 3-km-wide Sarigan volcano is seen here from the E during a 2003 NOAA expedition to the Marianas Islands.The cone has a 750-m-wide summit crater that forms the flat area to the right and it contains a small cone. More recent eruptions produced two lava domes from vents on and near the S crater rim, forming the island's high point at the left part of the summit. Holocene lava flows from the dome complex formed the peninsula to the far left.
The 3-km-wide Sarigan volcano is seen here from the E during a 2003 NOAA expedition to the Marianas Islands.The cone has a 750-m-wide summit crater that forms the flat area to the right and it contains a small cone. More recent eruptions produced two lava domes from vents on and near the S crater rim, forming the island's high point at the left part of the summit. Holocene lava flows from the dome complex formed the peninsula to the far left. · Foto: Image courtesy of NOAA, 2003 (http://oceanexplorer.noaa.gov/explorations/03fire/). · Wikimedia Commons
Tipo
Estratovolcán
País
United States
Región
Pacífico Noroccidental / Mariana Volcanic Arc
Altitud
494 m
Coordenadas
16.699, 145.780
Última erupción
Desconocido
Contexto tectónico
Subduction zone / Crustal thickness unknown
Forma volcánica
Composite
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

Sarigan volcano forms an irregular 3-km-long island consisting of a low truncated cone with a 750-m-wide summit crater that contains a small ash cone. The most recent eruptions produced two lava domes from vents above and near the south crater rim. Lava flows from each dome reached the coast and extended out to sea. The northern flow overtopped the crater rim on the N and NW sides. The sparse vegetation on the flows indicated to Meijer and Reagan (1981) that they are of Holocene age.

Resumen de Wikipedia

Sarigan es una pequeña isla de las Islas Marianas del Norte. La isla se encuentra a 95 millas al norte de Saipán y tiene una superficie de 4.966 km². Anteriormente la isla estuvo poblada, pero según el censo realizado en el 2000 está deshabitada. La isla es el lugar propuesto para el traslado en aves en peligro de Guam y Saipán.

Wikipedia · CC BY-SA · Leer artículo completo →

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