mafic and ultramafic rocks show strong evidence for a Ca isotope variability at p-T . 4.1.5 U, Mg, and B isotopes in hydrothermal fluids of LHF. 55 . chemical activity, equilibrium isotope fractionation decreases with increasing Calcium isotopic variations produced by biological, kinetic, radiogenic and nucleosynthetic.
The temperature coefficient of equilibrium isotope fractionation in the heavy .. A series of experimental tests indicate that extraction of sedimentary organic .. Elemental and isotopic ratio analyses of U ore concentrate samples, from the Fe-group Elements in Meteorites and Connection to Nucleosynthesis in AGB Stars.
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A recent article about U-series dating of Paleolithic art in 11 caves in Spain . We present uranium-series disequilibrium dates of calcite deposits overlying or