Copper stable isotopes; Cu isotopes
Copper has two stable isotopes, 63Cu and 65Cu, with relative abundances of 69.15% and 30.85%, respectively. A transition metal, Cu is moderately siderophile and strongly chalcophile (around 2/3 of Earth’s Cu is thought to be stored in its core). Copper is redox-sensitive and is present in three oxidation states in terrestrial environments: native Cu0, Cu+ and Cu2+. Copper is both economically important and an essential micronutrient. For all these reasons, isotopic variations of Cu have the potential to inform us of processes, sources, and phenomena in all disciplines of the geosciences. A more detailed review of the myriad applications of Cu isotopes is given by Moynier et al. (in press).
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