plate Tectonics

Question	Answer
Wegener proposed this hypothesis	Continental Drift
Each of the rigid slabs of Earth's lithosphere is called a	Plate
The mechanism responsible for producing new sea floor	Sea floor spreading
The type of plate boundary where plates move together	Convergent plate boundary
Ancient magnetism in rock structures	Paleomagnetism
This theory states that Earth's crust consists of 7 smaller sections	Plate tectonics
When rocks exhibit the same magnetism present in the magnetic field	Normal polarity
The type of plate boundary where plates move apart	Divergent plate boundary
A rising plume of magma such as the one that created the Hawaiian islands	Hot spot
The supercontinent that broke into smaller continents	Pangaea
A region where an oceanic plate descends into the athsenosphere	Subduction zone
A down faulted valley Created along spreading centers on continents	Rift valley
Occurs where plates grind past each other	Transform boundary
The temperature where magnetic minerals lose their magnetism	Curie point
Rocks that exhibit magnetism that is opposite to the present magnetic field	Reverse polarity
A chain of small volcanic islands that form when two oceanic plates converge	Island arc
A deep feature that forms along a subduction zone	Ocean trench
An elevated portion of the sea floor that forms along divergent plate boundaries	Ocean ridge system

Resource summary

	Created by Brian Hedspeth over 10 years ago