How old is the Continental Crust?

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  • How old is the Continental Crust?


The continental crust is the layer ... known as continental ... scientists have precisely dated the world's oldest rock unit at 4.02 billion years old.
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Positive: 33 %
Continental crust is rarely subducted ... replaced by oceanic crust. The edges of continental fragments formed this way (both sides of the Atlantic Ocean, ...
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Positive: 30 %

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Making new continents. Crust is made by melting mantle. Small percentages of the mantle melt ... caked on at the base of the old continental crust.
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Positive: 33 %
Nimisha Kaushik. "Difference Between Oceanic and Continental Crust." July 8, ...
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Positive: 28 %
Distribution of Continental Crust Beneath Southeast Iceland. ... Samples of old continental crust dredged or drilled from some locations thought to be ...
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Positive: 14 %
Continental Crust Terms. Orogeny. Epeirogeny. ... Because continental crust is thick and old, ... Oldest continental rocks are about 4 billion years old.
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Positive: 10 %

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