Hydrothermal alteration episodes reflect multiple Proterozoic tectonic and magmatic events in the Kangdian region, western Yangtze Block

Hydrothermal fluids are major agents for mass and heat transfer in the upper crust. Precise age dating tracing of origins fluid fluxes can provide vital information on geological past, yet detailed reconstructions past hydrothermal activity Precambrian terranes commonly hindered by multistage overprints recrystallization events. In this contribution, we present integrated U-Pb Re-Os isotopic analyses texturally resolved minerals including allanite, monazite, apatite, rutile, sulfides, order to constrain timing 1710−1660 Ma Dahongshan Group, which hosts largest Fe-Cu-Au deposit Kangdian region western Yangtze Block, South China. We identify six discrete periods at ca. 1650, 1140, 1040, 930, 870, 830 Ma, as well several other cryptic events metasomatised rocks, all be correlated with regional tectonic magmatic Our reconstruction provides a framework evaluating Proterozoic metallogenic histories along margin Block. Furthermore, our results highlight sensitivity response tectonomagmatic Demonstration these relationships is further ascertained contrasting among Paleoproterozoic that have similar polymetallic Fe-Cu mineralization worldwide. An additional implication archives hold potential serve unique fingerprints aid recognition events, complementary conventional detrital lithotectonic records.