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Radiogenic and Stable Isotopes, Fluid Inclusions
2019Samarium and Nd isotope data are used to provide information on the source of melts, as well as to determine the age of the rocks. Several samples yield extreme high 147Sm/144Nd ratios of >0.3, indicating extreme fractionation of the REE. This is also reflected in their calculated present day eNd values of eNdt = 0 at >40.0.
Thomas Dittrich +5 more
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Fluids and Radiogenic Isotopes
During water-rock interaction, several processes occur: coupled dissolution-reprecipitation, open-system reaction with formation of a compositionally different mineral, and Fick's Law diffusion in an inert matrix. All of these processes modify the stable and radiogenic isotopic compositions of the minerals.openaire +1 more source
Isotopic disequilibrium during anatexis: consequences for radiogenic isotope systematics
1995European Union of Geosciences, Strasbourg 9-13 ...
TOMMASINI, SIMONE, G. R. DAVIES
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