Plate Tectonics 4.2 Flashcards
(5 cards)
0
Q
Pangaea
A
Alfred Wegeners idea that all the continents were joined in one single, huge continent.
1
Q
Continental drift
A
The hypothesis that states that the continents once formed a single land mass, broke up, and drifted to their present locations
2
Q
Mid-Ocean Ridges
A
Places where sea floor spreading takes place
3
Q
Sea floor spreading
A
The process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies.
4
Q
Magnetic reversal
A
When earths magnetic poles change places. Evidence of sea floor spreading comes from magnetic reversals.
