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Honors Earth Space 2012 Higgins Ch 7 Pt 1
Can you name the Ch7 terms?
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Any break or rupture in rock along which no appreciable movement has taken place.
A theory that originally proposed that the continents are rafted about.
A long, deep, linear depression surface manifestation produced as oceanic lithosphere descends into the mantle.
A concentration of heat in the mantle capable of producing magma, which in turn extrudes onto Earth's surface.
A sensitive instrument used to measure the intensity of Earth's magnetic field at various points.
A weak region in the mantle.
A scale that shows the ages of magnetic reversals and is based on the polarity of lava flows of various ages.
A coherent unit of Earth's rigid outer layer that includes the crust and upper unit.
A linear zone along which continental lithosphere stretches and pulls apart. Its creation may mark the beginning of a new ocean basin.
The natural remnant magnetism in rock bodies. The permanent magnetization acquired by rock that can be used to determine the location of the magnetic poles and the latitude of the
Mountains formed in part by igneous activity associated with the subduction of oceanic lithosphere beneath a continent.
Chain of volcanic structures produced as a lithospheric plate moves over a mantle plume.
A chain of volcanic islands generally located a few hundred kilometers from a trench where active subduction of one oceanic slab beneath another is occurring.
The temperature above which a material loses its magnetism.
A change in Earth's magnetic field from normal to reverse or vice versa.
A boundary in which two plates move together, causing one of the slabs of lithosphere to be consumed into the mantle as it descends on an overriding plate.
The rigid outer layer of Earth's rigid layer, including the crust and upper mantle.
A region where the rigid plates are moving apart, typified by the mid-oceanic ridges.
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