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