Takahe Volcano
Updated: 19 mai 2024 20:05 GMT -
Shield volcano 3460 m / 11,352 ft
West Antarctica, , -76.28°S / -112.08°W
Condition actuelle: normal / en sommeil (1 sur 5)
West Antarctica, , -76.28°S / -112.08°W
Condition actuelle: normal / en sommeil (1 sur 5)
[smaller] [larger]
Eruptions du volcan Takahe: 5550 BC (?)
Derniers séismes proches
| Heure | Mag. / Profondeur | Distance / Lieu | |||
Introduction
Mount Takahe is an isolated shield volcano in eastern Marie Byrd Land with an 8-km-wide summit caldera. The massive 780 cu km volcano displays a conical, youthful morphology, and the oldest dated rocks are only 0.31 million years old. Three samples were too young to date by Potassium-Argon, and some tephra layers younger than 30,000 years in the Byrd Station ice core are thought to have originated from Mount Takahe. Two early Holocene phreatomagmatic tephra layers in the Antarctic ice core were attributed to Mount Takahe (Palais et al., 1988). The latest stage of activity at Mount Takahe constructed cinder cones on the upper southern flanks and tuff cones and cinder cones on the lower SW and NE flanks.---
Smithsonian / GVP volcano information
Latest satellite images
