Tectonic theory Flashcards
1
Q
Alfred wegner
A
tectonic theory, said continent was one big one that spread out
2
Q
evidence
A
continental fit, glacial evidence (areas where glaciers aren’t now have evidence of glaciation), matching geology, matching fossils, paleoclimate (found swamps/tropics previously where they wouldn’t originally be formed)
3
Q
lithosphere
A
rigid upper part of mantle, crust and mantle, floats on asthenosphere
4
Q
asthenosphere
A
hot, liquid, flows under lithosphere
5
Q
continental crust
A
granite
6
Q
oceanic crust
A
basalt
7
Q
boundaries
A
divergent (pulls apart), convergent (pushes together), transform (slides)
