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研究区位于胶北地体与胶莱盆地之间。区内地壳经历了陆核形成,元古代地壳沉降,褶皱回返;古生代-中生代中期地壳固化稳定及中生代后期地壳破裂,胶北地体隆起风化剥蚀,胶南地体沉降接受沉积,在其盆地底部陆相湖泊还原相中形成富金的含炭岩系。燕山晚期为区内主要金成矿期,分别在以胶东群为基体产生的重熔花岗岩内外接触带及下白垩统莱阳群中形成金矿。
The research area is located between the Jiaobei terrain and the Jiaolai Basin. During the Paleozoic-Mesozoic mid-crust, the crust solidified and the crust was ruptured in the late Mesozoic. The Jiaobei terrane was eroded and weathered, and the Jiaonan terrane was settled for sedimentation. At the bottom of the basin Sedimentary facies formed in the lake-rich carbonaceous rock series. The late Yanshanian period is the main gold mineralization period, and gold deposits are formed in the contact zone of remelted granite and the Laiyang group of Lower Cretaceous, respectively.