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Continental drift

By Erin Smoak
Last updated almost 5 years ago
32 Questions
Note from the author:
This is about the history of plate tectonics starting with continental drift and going forward with new technologies.

Who first proposed the theory of continental drift?

What year did Wegener publish his book?

What was Wegener's theory called?

What did Wegener's book have in it?

What were Wegner's 3 lines of evidence?

What were 2 of the fossils that Wegener used as part of his evidence?

What 2 places did they find tropical plant fossils that are currently covered in ice?

What did Wegener find in South Africa?

What kind of rock was in both North America and Scotland?

What did Wegener name the supercontinent?

What was the main reason that most scientists rejected Wegener's hypothesis?

When was this theory revisited?

What caused scientisit to revisit continental drift?

What did sonar find on the ocean bottom?

All are evidence to support the theory of continental drift EXCEPT

What new technology did scientists use to map the bathymetry of the ocean floor?

Magnetic stripes are ____________ on either side of the mid ocean ridge.

Rocks on the sea-floor that lie in a pattern, show a record of the reversals of

What new technology did scientists use to find changes on either side of the mid-ocean ridge?

Where is the youngest seafloor?

Sea-floor spreads apart at both sides of a _____ as new crust is added.

Drilling samples revealed that rock samples taken farther from a mid-ocean ridge are

What new information led to the expanding earth theory?

When continental plates collide what landform is made?

Which type of plates go under other plates?

What mixes with rock to melt it?

What causes the volcanoes on the ring of fire?

What is the example of a transform fault (where plates slide past each other)?

Label the direction of plate movement and convection in the asthenosphere for a divergent plate boundary. Draw arrows!

Label the direction of plate movement and convection in the asthenosphere for a convergent plate boundary. Draw arrows!

Explain what happens during the process of subduction in your own words.

Label the direction of plate movement of a transform plate boundary. Draw arrows!