Abstract:The Nadanhada terrane is located at western margin of the central Sikhote—Alin orogenic belt. Vigorous tectonic—magmatic—mineralization has occurred since the Mesozoic, forming hot spring type, volcanic—hydrothermal type, epithermal low temperature hydrothermal type and skarn type copper—gold deposits. In this paper, based on detailed field geological investigations, geochemical characterization of major elements, rare earths and trace elements as well as zircon U- Pb chronology of four typical deposits in Sipingshan, Xianfengbeishan, 258 highland and Yuejinshan were carried out, aiming to explore the tectonic background and metallogenic mode of Yanshan period copper—gold mineralization in the study area. Results: The results show that the LA- ICP- MS zircon U- Pb ages of the ore- forming rocks of Sipingshan gold deposit, Xianfengbeishan gold deposit, 258 highland gold deposit and Yuejinshan copper—gold deposit are 122. 5±1. 1 Ma, 117. 0±0. 4 Ma, 116. 9±0. 8 Ma and 115. 7±1. 1 Ma, respectively. The mineralization age of these deposits belongs to the late Early Cretaceous. The ore- forming rocks of the four deposits have similar lithogeochemical characteristics and belong to medium divergent I- type granites, with magma originating from partial melt source areas of crustal material and formed in a post- collisional tectonic setting. Conclusions: Combined with the geological setting of the deposit, zircon U- Pb chronological characteristics, petrochemical characteristics and regional tectonic evolution, this paper concludes that the metallogenic age of the Sipingshan gold deposit, Xianfengbeishan gold deposit, 258 highland gold deposit and Yuejinshan copper—gold deposit are basically the same, and their genesis is related to the Yanshanian intermediate—acid magma, belonging to the same metallogenic series. Copper—gold mineralization is closely related to the subduction of the Pale- Pacific plate.