The Kerguelen Plateau, also known as the Kerguelen–Heard Plateau, is an oceanic plateau and large igneous province located on the Antarctic Plate, in the southern Indian Ocean. It is about 3,000 km to the southwest of Australia and is nearly three times the size of California. The plateau extends for more than 2,200 km in a northwest–southeast direction a…The Kerguelen Plateau, also known as the Kerguelen–Heard Plateau, is an oceanic plateau and large igneous province located on the Antarctic Plate, in the southern Indian Ocean. It is about 3,000 km to the southwest of Australia and is nearly three times the size of California. The plateau extends for more than 2,200 km in a northwest–southeast direction and lies in deep water.