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Plate Tectonics Rev.

A review that includes boundaries, sea-floor spreading and continental drift.

QuestionAnswer
What type of boundary pulls apart? Divergent
Name one result of tectonic activity. Mountain building, earthquakes and volcanoes.
Harry Hess was the first person to find what? Sea-floor spreading
True or False:In a Convergent boundary, dense oceanic crust is forced under less dense continental crust. True
True or False: Divergent boundaries grind past each other. False
True or False: Transform boundaries result in earthquakes. True
During continental collision,two continental plates collide creating uplift. Crust is compressed forming what? Mountains
Divergent boundaries result in what? New oceanic crust.
THESE type of boundaries result in mountains or subduction zones. Convergent
What type of movement does transform boundaries create? Strike/slip or Grind past each other
Which plate is the Ring of Fire located on? Juan de Fuca Plate
Who proposed the Continental Drift Theory? Alfred Wegener
What is the process called when material in the Mantel rises upward to the surface at a mid-ocean ridge and crust moves outwards pushing the sea-floor away from the new ridge? Sea-floor spreading
Alfred Wegener believed that all continents were once connected as one mass. What is the name of this mass? Pangaea
Core samples from oceanic crust showed many what? Magnetic reversals
What does the Continental Drift Theory state? It states that continents moved.
What are some of the evidence that shows the PANGAEA existed? Puzzle-like fit of the continents, sea-floor spreading and the Fossil Record.
What plate is California located on? The North American Plate.
Name the plate that Brazil is located on. The South American Plate.
Created by: chayenne_
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