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3. The upper mantle is mainly made up of the mineralsa. magnesium and aluminiumb. silica and aluminiumc. magnesium and silicad. iron and magnesium |
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Answer» Upper mantle material which has come up ONTO the surface is made up of about 55% olivine and 35% pyroxene and 5 to 10% of calcium oxide and aluminum oxide. The upper mantle is dominantly PERIDOTITE, composed primarily of variable proportions of the MINERALS olivine, clinopyroxene, orthopyroxene, and an aluminous phase. |
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