“…According to the metallogenic epoch, age of intrusive rocks, and geochemical characteristics of intrusive rocks, the Debugan metallogenic belt can be divided into two series, one is Cu, Mo and Au deposits related to intermediate-acid intrusive rocks in the Late Triassic-Early Jurassic, the other is Pb-Zn-Ag polymetallic deposits related to intermediate-acid volcanic and intrusive activity in the Early Cretaceous (Zhang et al, 2010;Wu et al, 2014). The former are mainly porphyry Cu-Mo deposits and skarn Cu-Mo (Au) deposits (Wu et al, 2014;Zhang L. C. et al, 2014;Wang Y. H. et al, 2015;Gao et al, 2016), while the latter are mainly hydrothermal vein-type Pb-Zn-Ag polymetallic deposits (Niu et al, 2017;Wang J. X. et al, 2019;Xu et al, 2020;Hui et al, 2021). Porphyry Cu-Mo deposits are mainly distributed in the middle and north of the Derbugan metallogenic belt.…”