Asked by justin
A scientist collects a core sample from 60 km deep in Earth.
Which characteristic will she most likely observe in this sample?
The sample has high iron content.
The sample is very hot and liquefied.
The sample mainly consists of granite.
The sample is very young.
All Answers 1
Answered by
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The sample has high iron content.
Reason: 60 km is at the base of thick continental crust or in the upper mantle, where rocks are mafic/ultramafic (rich in iron and magnesium). Temperatures there make rocks ductile but not typically molten, and granite (a felsic, upper-crust rock) and "very young" material are unlikely.
Reason: 60 km is at the base of thick continental crust or in the upper mantle, where rocks are mafic/ultramafic (rich in iron and magnesium). Temperatures there make rocks ductile but not typically molten, and granite (a felsic, upper-crust rock) and "very young" material are unlikely.
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