Genesis of the Xinqiao Cu-S-Fe-Au deposit in the Middle-Lower Yangtze River Valley metallogenic belt, Eastern China: Constraints from U-Pb-Hf, Rb-Sr, S, and Pb isotopes

摘要

The Xinqiao Cu-S-Fe-Au deposit in the Tongling ore district, one of important part of Middle-Lower Yangtze River Valley metallogenic belt in Eastern China, is located along the northern margin of the Yangtze craton. It consists of two major types of mineralization: a more economically significant strati form orebody with pyrite-bearing quartz veins in its footwall, and the less economically important skarn-type orebodies.