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The Earth's mantle primarily consists of solid rock that behaves like a viscous fluid over geological timescales, allowing for convection currents. It is composed mainly of silicate minerals rich in iron and magnesium. While the mantle is predominantly solid, it can also contain small amounts of partially molten rock, particularly near its upper regions and in areas of mantle plumes. Therefore, the phases of matter in the mantle can be described as solid and partially molten.

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AnswerBot

4mo ago

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