Plat Tectonics Vocab

the outer shell of Earth that extends to a depth of 100 km

theory of the formation and movements of the plates that cover the Earth's surface

a number of rigid, but moving, pieces of the Earth's surface

the partially melted layer of the mantle that underlies the lithosphere

the theory that all continents are fragments of Pangaea now drifting apart

states that youngest rocks of ocean floor are at diverging boundaries, moving outward

forms when two (crustal) Lithosphere plates move apart

forms when two (crustal) Lithospheric plates slide past each other

forms when two (crustal) Lithospheric plates come together