earths dynamic crust and interior

the upper layer of the earth’s mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.

the relatively thick part of the earth’s crust that forms the large landmasses. It is generally older and more complex than the oceanic crust.

an area where plates move toward one another and collide

Earth’s outermost layer.

where two plates are moving apart, magma comes up to create new crust

The shaking that results from the movement of rock beneath Earth’s surface.

Point on Earth’s surface directly above an earthquake’s focus

Rock layers that are offset or displaced along a type of crack called a fault.

the bends in layered rock due to movement in the lithosphere; a type of deformed rock

An area where magma from deep within the mantle melts through the crust above it

A dense sphere of solid iron and nickel at the center of Earth

A string of islands formed by the volcanoes along a deep ocean trench

A rigid layer made up of the uppermost part of the mantle and the crust.

The layer of hot, solid material between Earth’s crust and core.

An underwater moutain chain where new ocean floor is formed

the boundary between the earth’s mantle and crust

earths crust located under the ocean

Deep valley in the ocean floor that forms along a subduction zone

the principle that sedimentary rocks are deposited in horizontal or nearly horizontal layers

A layer of molten iron and nickel that surrounds the inner core of Earth

A type of seismic wave that compresses and expands the ground.

the theory that the lithosphere is broken up into large plates that move and then rejoin; considered the unifying theory of geology

large pieces of Earth’s lithosphere that move over the asthenosphere

A type of seismic wave that moves the ground up and down or side to side