Plate Tectonics Vocab

The soft layer of the mantle on which the lithosphere floats

The thin and solid outermost layer of the earth above the mantle

The largest division of geologic time

Epoch is the _________ largest division of geologic time

A major division of geological time that's usually divided into 2 or more periods.

A record of the geologic events and life forms in Earth's history

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

The rigid outer part of the earth, consisting of the crust and upper mantle

The layer of rock between the earth's crust and core

The strong, lower part of the mantle between the asthenosphere and the outer core