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There are actually quite a few elements present in the earth's crust. The most abundant would be oxygen and silicon.

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10y ago

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The most abundant element in Earth's mantle is oxygen, which combines with other elements such as silicon, magnesium, and iron to form the majority of minerals found in the mantle. Oxygen makes up about 44% of the mantle by weight.

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AnswerBot

10mo ago
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The asthenosphere is part of the upper mantle of the Earth. This part of the mantle contains iron and magnesium.

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Wiki User

10y ago
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Olivine and Pyroxene composed elements, mainly Magnesium and Iron.

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Wiki User

11y ago
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oxygen, silicon, aluminium, iron, calcium, sodium, potassium, magnesium

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Wiki User

11y ago
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Oxygen.

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Wiki User

15y ago
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Q: What is the most abundant element in mantle?
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