The mantle is the region of the Earth’s interior between its outer crust and its core. It is almost 2,000 miles thick and constitutes approximately 85% of the Earth’s mass. The Atlantic Ocean’s Peter and Paul Rocks constitute a rare example of a portion of the mantle rising to the Earth’s surface. HMS Beagle stopped at the rocks with Charles Darwin aboard. He studied the rocks and concluded correctly that the rocks were uplifted rather than of volcanic origin. Laetitia’s ship cruised close enough to the rocks to take pictures but did not send boats ashore. The rocks are currently home to a Brazilian research station.
The rocks named for Peter and Paul
Can hardly be called a landfall
Made of Mantle-rock green
Known as olivine
They barely are islands at all.