Oceanic Lithosphere
The lithosphere (Ancient Greek: λίθος for "rocky", and σφαῖρα for "sphere") is the rigid outermost shell of a rocky planet. On Earth, it comprises the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater.
Read more about Oceanic Lithosphere: Earth's Lithosphere, Mantle Xenoliths, See Also