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Boundaries
Landforms
Craton/Terranes
Plate Tectonics Theory
Misc. Information
100
Where the tectonic plates are moving apart.
What is a diverging boundary?
100
A mountain range.
What is a collision boundary?
100
The oldest rocks of the continent.
What is the craton?
100
Evidenced used to prove the Continental Drift theory.
What is fossil remains, coastline shapes, distinctive rock formations?
100
Evidence of convection currents in the asthenosphere come from this.
What is heat flow values?
200
Where the plates are converging. Continental-Continental.
What is a collision boundary?
200
A deep sea trench and an island chain of volcanoes.
What is subduction boundary, oceanic-oceanic crust?
200
Where the North American Continent is exposed at the surface.
What is Canadian Shield?
200
Alfred Wegener
Who is the founder of the Continental Drift Theory?
200
In addition to the polarity reversals, the magnetic record preserved in rocks indicate this.
What is the continents locations have changed?
300
This is where crust is recycled into the asthenosphere.
What is a subduction boundary.
300
A deep sea trench and volcanic mountain range.
What is a subduction boundary that involves ocean crust subducting under continental crust?
300
One of the three ways that continents can change their shape.
What is deep-sea sediments, sediments deposited by rivers, and volcanic rock?
300
The word tectonics means this.
What is Structure?
300
Stresses that build up between the plate boundaries cause these.
What are volcanoes and earthquakes?
400
This is where one plate slides by another plate, this occurs where the North American Plate is sliding by the Pacific Plate.
What is a transform or sliding boundary located at the San Andreas Fault.
400
A mid-ocean ridge.
What is the landform present at a diverging boundary?
400
A terrane can be identified by these characteristics.
What are bounded on all sides by faults, rocks and the fossils found in them don't match the surrounding rock, and magnetic polarity found in the terranes do not match the surrounding terranes?
400
Modern evidence that proved the theory of Continental Drift.
What are the location of volcanoes and earthquakes in belts at plate margins and magnetic striping or magnetic reversals?
400
Mount St. Helens, Mount Katmai, and Mount Fujiyama.
What are volcanoes around the Pacific Ring of Fire?
500
The rising portion of the convection currents are thought to cause this.
What is a rift valley-at a divergent boundaries?
500
Both collision and subduction boundaries are types of this boundary.
What is converging boundaries?
500
Displaced terranes.
What are rocks that have moved a long distance before becoming part of another continent?
500
The most likely reason that Wegener's theory of Continental Drift was not widely accepted at the time.
What is positive evidence could not be obtained for how the continents had moved.
500
The magnetic polarity is shown clearly in this rock's record.
What is basalt?