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ES CH 10 Vocabulary

Name:______________________________
Date:____________PD:______
Across
A piece of lithosphere that has a unique geologic history and that may be part of a larger piece of lithosphere, such as a continent
The single, large ocean that covered Earth's surface during the time the supercontinent Pangaea existed
The theory that explains how large pieces of the lithosphere, called plates, move and change shape
A long, undersea mountain chain that has a steep, narrow valley at its center, that forms as magma rises from the asthenosphere, and that creates new oceanic lithosphere (sea floor) as tectonic plates move apart
The process by which supercontinents form and break apart over millions of years
The hypothesis that a single large landmass broke up into smaller landmasses to form the continents, which then drifted to their present locations
The supercontinent that formed 300 million years ago and began to break up 200 million years ago
The type of plate boundary where the plates are moving away from each other
Down
The solid, outer layer of Earth that consists of the crust and rigid upper part of the mantle
The solid, plastic layer of the mantle beneath the lithosphere
The type of plate boundary where tectonic plates are sliding past each other horizontally
The study of the alignment of magnetic minerals in rock,specifically as it relates to the reversal of Earth's magnetic poles; also the magnetic properties that rock acquires during formation
The process by which new oceanic lithosphere forms when magma rises to Earth's surface at mid-ocean ridges and solidifies, as older, existing sea floor moves away from the ridge
The process by which Earth's crust breaks apart; can occur within continental crust or oceanic crust
The type of plate boundary where the plates are colliding