monte Marion-Dufresne

Est, Ile de l'

Stratovulcano · France · 1090 m

Ile de l'Est, the easternmost island in the Crozet archipelago, is seen in this NASA International Space Station image (N to the top). The glacially-eroded volcano contains about a half dozen young scoria cones of possible Holocene age concentrated on its E flank. Cape Itaine forms the small peninsula on the SW side of the island (bottom left), and Abondance Bay is at the bottom center. · Foto: NASA International Space Station image ISS006-E-37992, 2003 (http://eol.jsc.nasa.gov/). · Wikimedia Commons

Tipo: Stratovulcano
Paese: France
Regione: Somalian-Antarctic Volcanic Regions / Crozet Hotspot Volcano Group
Altitudine: 1090 m
Coordinate: -46.430, 52.200
Ultima eruzione: Sconosciuto
Contesto tettonico: Rift zone / Oceanic crust (< 15 km)
Forma vulcanica: Composite
Roccia principale: Basalt / Picro-Basalt

Sintesi geologica

Ile de l'Est, the easternmost island in the Crozet archipelago, is a glacially eroded basaltic stratovolcano. A metamorphosed gabbroic complex is cut by a dense network of dikes and cone sheets that fed younger volcanic rocks. The 10 x 19 km island is the oldest of the Crozet Islands, but contains five younger oxidized scoria cones, most of which are on its E flank. The young scoria cones may be Holocene (LeMasurier and Thomson, 1990).

Sintesi da Wikipedia

Riassunto in inglese

Mont Marion-Dufresne is the highest mountain in the Crozet Islands, French Southern and Antarctic Lands, Indian Ocean.

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