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Geology midterm

Plate Tectonics and Plate Theory

contiental drift
glacial stirations
paleomagnetism a mineral in rocks preserves a record of magnetic field at the same time of their formation
inclination angle from horizontal to the magnet
sea floor spreading occurs at mid ocean ridge, no oceanic crust is formed through the volcanic activity
mid ocean ridge
plate tectonics scientific theory describing the large scarce motion of earths lithosphere
Wagners theory of continental drift & evidence Pangea- believed continents were moving due to fossils
Paleomagnetism studies the study of ancient magnetism in rocks
Deccan Traps and magnetic anomalies in sea floor dikes
How fast evidence suggests the Plates are moving
sea floor spreading- where does it spread
tectonic plate
mid ocean ridge
convergent boundaries
transform boundaries
divergent boundaries
linear sea
rift valley
island arc
hot spot
volcanic chain
ridge push force
slab pull force
how do you know the direction of plate movement
Hazzards of divergent boundaries
hazards of transform boundaries
hazards of convergent
how does an ocean grow
how can a plate boundary die
how can you identify which plate will subduct under another
know an example where boundaries subduct each other