Flashcards in Chapter 15 vocab Deck (14)
the layer of rock between the earth's crust and core
the central part of the earth below the mantle
the solid, outer layer of the earth that consists of the crust and the rigid upper part of the mantle
the strong, lower part of the mantle between the asthenosphere and the outer core
the soft layer of the mantle on which the tectonic plates move.
a block of lithosphere that consists of the crust and the rigid, outermost part of the mantle
the hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations
sea floor spreading
the process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies
the boundary formed by the collision of two lithospheric plates
the boundary between 2 tectonic plates that are moving away from each other
the boundary between tectonic plates that are sliding past each other horizontally
hot rock from deep within the earth rises, but cooler rock near the surface sinks. This causes the oceanic lithosphere to move sideways and away from the mid-ocean ridge.
when one plate dives beneath each other due to a convergent boundary