Question

what is mantle composed of​

Answer 1

Answer:

silicate rocks

Mantle. The mantle under the crust is about 1,800 miles deep (2,890 km). It is composed mostly of silicate rocks rich in magnesium and iron. Intense heat causes the rocks to rise.

Answer 2

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The mantle consists entirely of an ultramafic (dark and dense) rock called peridotite. up to a few percent of the mantle has melted.

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