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Earth Science
Geology
Plate Tectonics Study Guide
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What is a mid ocean ridge?
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an underwater mountain range / rocks that form during seafloor spreading
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Created by
awesomejmoney2424
Terms in this set (10)
What is a mid ocean ridge?
an underwater mountain range / rocks that form during seafloor spreading
What are the three main pieces of evidence for continental drift?
climate evidence, continents shapes match up, rocks and fossils
Whats the evidence for plate tectonics
sea-floor spreading, properties of the sea floor, locations of earthquakes and volcanoes
What do changes in seismic wave activity on a seismometer
the higher the number on a seismometer the higher the ground waves are
Where are the greatest amounts of volcanic activity?
near plate boundaries
What processes are explained by the theory of plate tectonics?
earths surface of giant, moving slabs, called tectonic plates
What layer does earths tectonic plates ride on top of?
lithosphere
How does sea-floor spreading relate to the age of rock on the sea-floor?
oldest on the ends, the youngest is the newest rock formed
What are the three types of plate boundaries, what occurs there? (know what they look like)
convergent = push together / at each other
divergent = push away from each other
transform = push past each other
What are the three types of stress put upon plates, what occurs there? (also know what they all look like)
compression = squeezes or shortens rock
tension = lengthens material or pulls material apart
sheer = causes material to twist or become distorted
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