Dawson Strait Group

Papua Nuova Guinea · Campo vulcanico

Dawson Strait Group

Tipo: Campo vulcanico
Altitudine: 500 m
Ultima eruzione: 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 vulcanico
Paese: Papua Nuova Guinea
Regione: Pacifico sud-occidentale / Trobriand Volcanic Province
Altitudine: 500 m
Coordinate: -9.620, 150.880
Ultima eruzione: 1350
Contesto tettonico: Zona di subduzione / Crosta continentale (> 25 km)
Forma vulcanica: Gruppo vulcanico
Roccia principale: Riolite

Sintesi geologica

Originale in inglese

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.

Estratto dal Global Volcanism Program, Smithsonian Institution · Leggi la sintesi completa sul GVP →