Continental Drift
German Scientist who came up with the idea of continental drift
Alfred Wegner
Pangaea
Long chain of underwater mountains
mid-ocean ridge
A layer of Earth that included the crust and a thin part of the upper mantle
lithosphere
Boundary where 2 plates come together
Convergent boundaries
Preserved remains of a living organism
fossils
What does Pangaea mean?
All Lan
The process that continually add to the ocean floor
The lower part of the upper mantle that the lithospheric plates slide on
asthenosphere
Boundary where 2 plates move apart
Divergent Boundary
Wegener's theory became known as
Continental Drift
Evidence from land
mountain ranges, coal fields
subduction
Thick, less dense plate made of granite and form continents
continental plate
Boundary where 2 plates slide by each other
Transform Boundary
State the hypothesis of continental drift
The idea that the continents slowly moved over Earth's surface.
Evidence from fossils
Glossopteris (plant)
Lystrosaurus
Cynogathus
Mesosaurus
Another name for basalt
pillow rocks
Thin, dense plate that are made of basalt and form the ocean floor
oceanic plate
Earth's inner core
3 Pieces of Evidence
land features
fossils
climate
Evidence from Climate
fossils of tropical plants found in Arctic Ocean
glacial scratches
When the crust sinks it completes what cycle?
convection cycle
A theory explaining how the pieces of Earth's surface move
Plate Tectonics
A liquid layer composed of iron and nickel
Earth's outer core