continental crust

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continental crust

[¦känt·ən¦ent·əl ′krəst]
(geology)
The basement complex of rock, that is, metamorphosed sedimentary and volcanic rock with associated igneous rocks mainly granitic, that underlies the continents and the continental shelves.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
This kind of continental crust is found today only in a few places, like Iceland and the Faroe Islands.
However, as the continental crust changed to become more silica-rich like today's, the olivine content reduced, and so did the chemical reactions that locked away free oxygen.
That peel is made up of a continental crust 30 to 40 kilometres thick.
The composition of the continental crust corresponds to a semi-liquid version of the oceanic crust melted by 10 to 30 percent of its original state.
Krogstad says two pieces of continental crust crunched together from the east and west, squeezing up a band of seafloor between them.
The continental crust on the west side contains much older rocks than the east side.

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