Unit 10 Plate Tectonics and Topographic Maps
The hypothesis that the continents slowly move across Earth's surface.
A line on a topographic map that connects points of equal elevation
A plate boundary where two plates move toward each other
A plate boundary where two plates move away from each other
Height above sea level
A break in a rock mass along which movement has occurred.
Earth's crust and solid upper mantle, broken into tectonic plates
An undersea mountain chain where new ocean floor is produced.
plate tectonic theory
The scientific theory that the surface of the Earth is broken up into plates that are in constant motion
Ancient landmass made up of all the continents that began to break apart about 200 million years ago.
Sections of the Earth's crust that move due to convection currents.
A deep valley that forms where two plates move apart
The process that creates new sea floor as plates move away from each other at the mid-ocean ridges
One plate going under another plate
A plate boundary where two plates move past each other in opposite directions
Deep linear depression in the ocean floor where subduction is taking place.
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