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The 147 Sm– 143 Nd isotope system may be used to determine the age of hydrothermal vein growth for single veins, or sets of veins, providing that the minerals in these veins formed from a hydrothermal fluid with initially homogeneous 143 Nd/ 144 Nd. In this study, we determined the 147 Sm– 143 Nd, 87 Sr/ 86 Sr, δ 13 C and δ ...
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