Ore-forming processes in the Xingjiashan W-Mo skarn deposit (Jiaodong, China): Insights from multi-generation scheelite and garnet geochemistry

The Xingjiashan W-Mo skarn deposit in the Jiaodong Peninsula, eastern China, is hosted by the Paleoproterozoic metamorphic rocks and Mesozoic granitic stock. Four generations of scheelite (Sch-1, Sch-2, Sch-3, Sch-4) were recognized based on their occurrences, mineral paragenesis, fluorescence and texture. The Mo contents (MoO3) of scheelite show a decrease from 30.9 to 4.1% (Sch-1) to 2.24–0.11% (Sch-2), then to 0.44–0% (Sch-3), finally with an...