a super-continent that existed approximately 300 million years ago
pangaea
the thin and solid outermost layer of the Earth above the mantle
crust
the layer of the rock between the Earth's crust and core
mantle
the central part of the Earth below the mantle
core
the solid, outer layer of the Earth that consists of the crust and the rigid upper part of the mantle
lithosphere
the strong, lower part of the mantle between the asthenosphere and the outer core
mesosphere
a block of lithosphere that consists of the crust and the rigid, outermost part of the mantle
tectonic plate
the hypothesis that states that the continents once formed a single landmass, broke up, and drifted to there present locations
continental drift
a break in a body of rock along which one block slides relative to another
fault
the rising of regions of the Earths crust to higher elevations
uplift
the theory that explains how large pieces of the earth outermost layer move and change shape
plate tectonics
stress that occurs when forces act to squeeze an object
compression
stress that occurs when forces act to stretch an object
tension
the bending of rock layers due to stress
folding
the sinking of regions of the Earths crust to lower elevations
subsidence
the process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies
sea floor spreading
the soft layer of the mantle on which the tectonic plates move
asthenosphere
the boundary formed by the collision of 2 lithospheric plates
convergent
the boundary between 2 tectonic plates that are moving away from each other
divergent
the boundary between tectonic plates that are sliding past each other horizontally
transform