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Carbon Sequestration in the Earth’s Deep Mantle

Wendy R. Panero, School of Earth Sciences, Ohio State University, Columbus, OH 43210. Carbon Sequestration in the Earth’s Deep Mantle.

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Carbon Sequestration in the Earth’s Deep Mantle

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  1. Wendy R. Panero, School of Earth Sciences, Ohio State University, Columbus, OH 43210 Carbon Sequestration in the Earth’s Deep Mantle We address the stability of carbonates in the Earth’s deep interior through the relative oxidation buffers of siderite-diamond-iron (SDI: FeCO3 = C+Fe+3/2 O2) compared to iron-wüstite (IW: FeO=Fe+1/2O2). Reduction of C at the IW buffer C Structural transition in carbonates at ~100 GPa, stabilizing carbonate

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