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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 hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations
the large northern landmass that separated after the break up of Pangaea including North America, Europe, and Asia
the large southern landmass that separated after the break up of Pangaea including South America, Africa, India, Antarctica, and Australia
the process by which Earth's crust breaks apart; can occur within continental crust or oceanic crust.
the process by which new oceanic lithosphere (sea floor) forms as magma rises to Earth's surface and solidifies at a mid-ocean ridge
the single, large ocean that covered Earth's surface during the time the supercontinent Pangaea existed
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 supercontinent that formed 300 million years ago and that began to break up beginning 250 million years ago
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 movement of heated material due to differences in density created by temperature differences
The process by which supercontinents form and break apart over millions of years
geomagnetic reversal time scale
alternating periods of normal and reversed polarity in oceanic crust
The solid, outer layer of Earth that consists of the crust and the rigid upper part of the mantle
The solid, plastic-like layer of the mantle that flows very slowly, which allows tectonic plates to move on top of it
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