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Hanish Islands

Hanish

순상화산 · Yemen · 422m

The 20-km-long island of Hanish is seen in this composite NASA Landsat image (with north to the top). Alignment of vents along a prominent NE-SW trend gives the island its elongated shape. Short lava flows reached the coast on both sides of the island, including a very youthful flow prominent on the NW coast. Initial phreatic eruptions were followed by the formation of basaltic tuff and spatter cones that produced fluid lava flows. Suyul Hanish Island lies at the bottom center, and other offshore island lie along the regional NE-SW trend.
The 20-km-long island of Hanish is seen in this composite NASA Landsat image (with north to the top). Alignment of vents along a prominent NE-SW trend gives the island its elongated shape. Short lava flows reached the coast on both sides of the island, including a very youthful flow prominent on the NW coast. Initial phreatic eruptions were followed by the formation of basaltic tuff and spatter cones that produced fluid lava flows. Suyul Hanish Island lies at the bottom center, and other offshore island lie along the regional NE-SW trend. · 사진: NASA Landsat 7 image (worldwind.arc.nasa.gov) · Wikimedia Commons
화산 유형
순상화산
국가
Yemen
지역
Eastern Africa Volcanic Regions / Red Sea Rift Volcanic Province
해발
422m
좌표
13.720, 42.730
마지막 분화
미확인
판구조 환경
Rift zone / Oceanic crust (< 15 km)
화산 지형
Shield
주요 암석
Basalt / Picro-Basalt
지질학적 요약

The Hanish Islands are formed from a series of volcanic vents along a NE-SW trend, and include the Holocene Great Hanish, Little Hanish, and many other small islands and submarine shoals. The Zukur-Hanish island group lies in shallow waters S of the Red Sea median trough. Spatter cones, cinder cones, and ash cones line the crest of the 20-km-long Great Hanish Island. Short lava flows reach the coast on both sides of the island. Initial eruptions were phreatic, followed by the formation of basaltic cinder cones, spatter cones, and fluid lava flows.

Wikipedia 요약

영어 요약

The Hanish Islands is an archipelago in the Red Sea consisting of a trio of major islands at the centre of an array of smaller islets and rocks. The three major islands are the northern Zuqar Island, the southern Great Anish, and the significantly smaller Little Anish in between. The archipelago is largely under the control of Yemen, with only several small south-western rocks and islets granted to Eritrea by the Permanent Court of Arbitration in 1998 following the Hanish Islands conflict in 1994–1995.

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