abstract:Scotia Arc is the island arc system forming the north, east and south border of Scotia Sea. The arc comprises submarine ridges and the island groups of South Orkneys, South Sandwich Islands, Clerke Rocks, South Georgia, Shag Rocks, Isla de los Estados, and Burdwood Bank linking the mountains of Antarctic Peninsula] to those of [[Tierra del Fuego (specifically the Mitre Peninsula) and the Andes.