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- Earth’s deep carbon cycle is strongly influenced by the reactivity of carbonate minerals along the P-T paths on which they are transported through the deep crust and mantle. We will undertake carbonate mineral solubility measurements in a diamond anvil cell optimized for x-ray fluorescence measurements of calcium carbonates in NaCl-H2 O solutions at high pressure and temperature. We will also undertake solubility experiments in the presence of silicate minerals to access fluid compositions typical of subduction-zone processes. These experimental data will be used to calculate thermodynamic data relevant for use in geochemical models.
- October 2011 - September 2013