Geologic Processes & Rock Classification

the movement of the plates and the processes that occur at their boundaries

huge rigid plates that are moved with convection cells or currents by floating on magma or molten rock

plate movement adds new land at boundaries, produces mountains, trenches, earthquakes, and volcanoes

plates move apart in the opposite direction

plates slide next or past each other in opposite directions along a fracture

innermost zone with solid inner core and molten outer core

Solid rock with a rigid outer part (asthenosphere) that is melted pliable rock

Outermost zone which underlies the continents

Crust and upper mantle

the interaction of processes that change rocks from one type to another

Intrusive: Formed from the solidification of magma below ground

Extrusive: Formed from the solidification of lava  above ground

formed from sediments. Most form when rocks are weathered and eroded into small pieces, transported, and deposited in a body of surface water

limestone precipitates out and oozes to the bottom of the ocean

such as peat & coal

when preexisting rock is subjected to high temperatures, high pressures, chemically active fluids, or a combination of these

rock that is next to a body of magma

during mountain building; great quantities of rock are subject to intense stresses and heat