They are found in the slate rocks of the pre-Cambrian (Archean Schist) and Dharwar periods in India. Uranium and Thorium are major minerals for the production of atomic energy. Uranium is mined ...
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Geologists Found Remnants Of Earth's Mantle That Have Lasted Over 2.5 Billion Years And Challenge Previous Beliefs About Our Planet's Oxidation ProcessesThe rocks were extracted from two spots-the Southwest Indian Ridge between southern ... of being melted significantly more. During the Archean Eon, the Earth's mantle was much hotter.
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