Topic summary
Perim Island
Extracted from the Wikipedia article Perim.
Geology
Perim island is an eroded fragment of the southwest flank of a late Miocene volcano, whose center was on the southwesternmost tip of Arabia. The volcano is the westernmost of the east–west line of six central vent volcanoes (the Aden line) that extends 200 km (125 mi) along the coast of Arabia from Perim to Aden. It is believed that the volcanism is related to an eastward-propagating rift produced before the most recent stage of sea-floor spreading in the Gulf of Aden.