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Prince Edward Island

순상화산 · South Africa · 672m

The 10-km-wide Prince Edward Island is around 300 km S of the SW Indian Ocean Ridge and is shown in this 24 May 2019 Sentinel-2 satellite image (N is at the top). Seven tuff cones have been identified and scoria cones have also formed across the island, as well as lava flows. A large portion of the island has been submerged through faulting.
The 10-km-wide Prince Edward Island is around 300 km S of the SW Indian Ocean Ridge and is shown in this 24 May 2019 Sentinel-2 satellite image (N is at the top). Seven tuff cones have been identified and scoria cones have also formed across the island, as well as lava flows. A large portion of the island has been submerged through faulting. · 사진: Satellite image courtesy of Copernicus Sentinel Data, 2019. · Wikimedia Commons
화산 유형
순상화산
국가
South Africa
지역
Somalian-Antarctic Volcanic Regions / Marion Hotspot Volcano Group
해발
672m
좌표
-46.630, 37.950
마지막 분화
미확인
판구조 환경
Rift zone / Oceanic crust (< 15 km)
화산 지형
Shield
주요 암석
Basalt / Picro-Basalt
지질학적 요약

Uninhabited 5 x 10-km-wide Prince Edward Island lies opposite Marion Island at the N end of a submarine plateau on the Antarctic Plate immediately S of the SW Indian Ocean Ridge. It is a low-angle remnant of a large shield volcano formerly centered off the current NW shore of the island. Pleistocene and Holocene scoria cones and tuff cones are located throughout the unglaciated island, which was active contemporaneously with nearby Marion Island. Fifteen of the scoria cones and four tuff cones on the coastal plain were active during the Holocene.

Wikipedia 요약

영어 요약

The Prince Edward Islands are two small uninhabited subantarctic volcanic islands in the southern Indian Ocean that are administered by South Africa. They are named Marion Island and Prince Edward Island.

Wikipedia · CC BY-SA · 전체 기사 보기 →

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