“…These deposits include the Erdaogou gold deposit (126 Ma, Pang and Qiu, 1997), Jinchanggouliang gold deposit (122 Ma, Liu et al, 2002), Dong'an gold deposit (107 Ma, Zhang et al, 2010b) and Tuanjiegou gold deposit (105 Ma, Liu et al, 1999). It is very common in NE China that the ages of most epithermal Au deposits are similar to those of porphyry Cu-Mo(-Au) deposits and vein-or skarn-type Pb-Zn-Ag polymetallic deposits (i.e., 130-110 Ma, Sun et al, 2013;Zhai et al, 2013Zhai et al, , 2014a (Fig. 1c).…”