Characteristics and evolution of quartz-calcite-sulfide veins in the Nazca-Ocoña belt, Peru Coupled sulfur isotope analyses using NanoSIMS and trace element analyses by LA_ICP-MS suggest that the majority of the gold in quatrz-calcite-sulfide veins formed in association with a shallower hydrothermal event. First Author: J. Crespo. https://doi.org/10.1016/j.oregeorev.2024.105895