Dawson Strait Group

Papúa Nueva Guinea · Campo volcánico

Dawson Strait Group

Tipo: Campo volcánico
Altitud: 500 m
Última erupción: 1350

The Dawson Straits, seen in this NASA Landsat image, is located between eastern Fergusson Island (upper left) and northwestern Normanby Island (lower left) in the D'Entrecasteaux island group. The area contains a volcanic field with several young volcanic centers that erupted rhyolitic obsidian flows. Mount Oiau is located on the narrow peninsula (left center) forming the southernmost point on Fergusson Island. A large crater is visible on Dobu Island, southeast of Oiau. Young volcanic rocks are also found on Sanaroa Island (upper right). · Foto: NASA Landsat 7 image, 1999-2003 (courtesy of NASA Worldwind).

Tipo: Campo volcánico
País: Papúa Nueva Guinea
Región: Pacífico Suroccidental / Trobriand Volcanic Province
Altitud: 500 m
Coordenadas: -9.620, 150.880
Última erupción: 1350
Contexto tectónico: Zona de subducción / Corteza continental (> 25 km)
Forma volcánica: Grupo volcánico
Roca principal: Riolita

Resumen geológico

Original en inglés

The Dawson Straits, located between eastern Fergusson and western Normanby Islands in the D'Entrecasteaux island group, contains a volcanic field with several centers that define a possible partly submerged caldera.

Extracto del Global Volcanism Program, Smithsonian Institution · Leer el resumen completo en el GVP →