Earth Science Quiz
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MINERALS AND ROCKS
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For a limestone (sedimentary) to be transformed into a marble (metamorphic), which of the following conditions is necessary?
A
The limestone must be buried and subjected to heat and/or pressure that cause its calcite crystals to recrystallize.
B
The limestone must be exposed at the surface and saturated with acidic rainwater.
C
The limestone must be completely melted and then allowed to cool very slowly.
D
The limestone must be eroded by a glacier and redeposited as fine-grained sediment.
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