Seal Nunataks
Coordinates: 65°07′30″S 60°00′00″W / 65.12500°S 60.00000°W The Seal Nunataks are a group of 16 islands called nunataks emerging from the Larsen Ice Shelf east of Graham Land, Antarctic Peninsula. The Seal Nunataks have been described as separate volcanic vents of ages ranging from Miocene to . There are unconfirmed reports of Holocene volcanic activity.
The Seal Nunataks are part of Graham Land and were embedded within the Larsen Ice Shelf until its northern margin collapsed between 1986 and 1996, rising from about 500 metres (1,600 ft) below sea level. They were discovered by the Norwegian Carl Anton Larsen in December 1893, who also identified them as volcanoes and named them Seal Islands.
The Seal Nunataks are part of a volcanic province in West Antarctica which extends over the Antarctic Peninsula, Marie Byrd Land and Ross Island. In the Antarctic Peninsula, Alexander Island, James Ross Island and the Seal Nunataks form this volcanic province. Alexander Island was active between 48 and 18 million years ago. James Ross Island lies about 150 kilometres (93 mi) northeast of the Seal Nunataks.
...
Wikipedia