Science Quiz / Plate Tectonics Theory II

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Can you name the Plate Tectonics Theory II

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places where crust is extended, thinned, and fractured as magma rises to the surface
a partial australopithecine
Supercontinent Cycle Hypothesis
tectonically inactive
longest mountain range
dating of magnetic anomalies in the crust of the sea floor
youngest volcanic island
flat-topped submerged former volcano
lack of earthquakes, volcanoes, young mountain ranges
magma rising at a spreading center exerts enough pressure to push the plates of lithosphere apart
choosy female
example of Oceanic-oceanic Convergent
highest mountain
example of Oceanic divergent
characterized by deformation, volcanism, mountain building, metamorphism, earthquake activity, and important mineral deposits
occur along fractures in the seafloor, know as transform faults, where plates slid laterally past each other, roughly parallel to the direction of plate movement
QuestionsAnswer
a trail of extinct and progressively older volcanoes
laser beams from a station on one plate are bounced off a satellite and returned to a station on a different plate
example of Continental-continental Convergent
a plate of lithosphere slides down a gently inclined surface of asthenosphere
spreading ridges occur where plates are separating and new oceanic lithosphere is forming
example of Transform Plate Boundary
example of Continental divergent
determine absolute motion
where two plates collide and the leading edge of one plate is subducted beneath the margin of the other plate and eventually incorporated into the asthenosphere
example of Oceanic-continental Convergent
highest peak
move as individual units, and interactions between them occur along their edges
hypothesis of J. Tuzo Wilson, early 1970s
locations where stationary columns of magma, originating deep within the mantle, slowly rise and form volcanoes
a tongue of cold, dense lithosphere sinks into the mantle and drags the rest of the plate behind it

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