1/24
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
Lithosphere
The rigid outer layer of the Earth, consisting of the crust and the uppermost part of the mantle, which is involved in tectonic activity.
Asthenosphere
The semi-fluid layer of the Earth's mantle located below the lithosphere, which allows for the movement of tectonic plates.
Convection Currents
Hot materials expand, so they become less dense. Denser materials sink and create a cycle that drives tectonic plate movement. What is this process called?
Lystrosaurus
doggy burrower that evolved 270 mil yrs ago
Glossopteris
prevalent seed fern. flourished in the Permian and Triassic periods
Pan
means all in greek
Gaea
means land in greek
Thalassa
means seas in greek
Pangaea
single landmass or supercontinent
Panthalassa
vast superocean surrounding Pangaea
Alfred Wegener
meteorologist and geophysicist who formulated the first complete statement of the continental drift hypothesis in 1912
South America & Africa
fit of the coastlines blank and blank
Eduard Suess
presented the contraction theory, and explained the existence of the supercontinent Gondwana.
Contraction Theory
Earth cools after its formation causing the crinkling of landmasses. Assumes that the earth is relatively static
Gondwana
Africa, Antarctica, South America, Australia, Indian Subcontinent
Alexander du Toit
South african geologist who coined Laurasia in 1937
Laurasia
Asia, North America, Europe
Cynognathus
meter-long predator of the lower triassic
Harry Hess
proves that the seafloor and the ocean floors move, not the continents
Seafloor Spreading Theory
Theory that states mantle convection causes the movement of lithospheric material, causing the movement of the seafloor.
Magma Upwelling
rifting of the continental crust by pushing upward, forcing it to crack and become thinner
Rift Valleys
cracks in the continental crust from the thinning of the land (divergent boundary)
Theory of Plate Tectonics
The Unifying Theory of Geology, incorporates continental drift hypothesis and seafloor spreading
Driving Forces
pushes plates toward each other or away from.
Resisting Forces
acts against the driving forces and slows it down