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Modifier & traduire [exit edit]Move your mouse over text: the text highlights and you click and edit it directly. Titre de la page: Navigation title: Keywords: Garove volcanstratovolcan 368 m / 1,207 ft
New Britain Island, Papouasie-Nouvelle Guinée, -4.69°S / 149.5°E Condition actuelle: en sommeil (1 sur 5)
Style éruptif tipique: Explosive
Eruptions du volcan Garove: during the past 10,000 years, perhaps only a few 100 years ago Derniers séismes proches:
Garove volcano has a 5 km wide flooded caldera open to the sea through a narrow breach on the southern side, where it forms Johann Albrecht harbour. The island has fumarole fields and thermal areas. Introduction:from Smithsonian / GVP volcano information:The low, 12-km-wide elongated island is cut by a 5-km-wide caldera that is flooded by the sea through a narrow breach on the southern side of the island, forming Johann Albrecht harbor. The steep-sided caldera walls rise 100-150 m above the sea. Satellitic cones were constructed along the NE and SW coasts. No historical eruptions are known from Garove, but the preservation of fresh lava flow structures on the NW coast suggests an age as young as a few hundred years (Johnson and Blake, 1972). --- Johnson R W, Blake D H, 1972. The Cape Hoskins area, southern Willaumez Peninsula, the Witu Islands, and associated volcanic centres, New Britain: volcanic geology and petrology. Aust Bur Min Resour Geol Geophys Rec, 1972/133: 1-102 Witu Island group The Witu (or Vitu) Island group is formed by of the emerging tops of Pleistocene to Holocene volcanoes N of western New Britain. It covers 45 square miles (117 square km) and includes the main islands Garove (26 square miles), Unea (11 square miles), and Mundua (2 square miles), as well as 5 smaller islands. Garove's volcano is probably still active, while the other islands might be extinct. |
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