Abstract:

The two areas of Shaanxi Province’Zhongtiao Mountain and Henan Province' Xiaoqinling lie on the southwest margin of North China Plate,they once upon a time were the main componentparts of Yu(Henan Province)-Jin(Shanxi Province)-Shan(shaanxiProvince)three-direction split—trap trough in Iater Archaeozoic to Proterozoic Era. They both had deveIoped a serial double-mode rock-constructure in the condition of mainland rift valIey,being consisted from tholeiitic basalts,alkalescence basalts and part of calcium-alkalinity volcanic rocks which constructed the primary earth’s crust and the intial stage mine-source straturms of the two areas. Lanthanon has the same enrichment and deficit  mode with constant element and trace element in a collection of illustrative pIates.This shows that the sources of alI mineralizational matetial were isogenic,and the mineralization had been evolved in heritantly.The two areas are approximate fabulosityIy in controlling-mineral straturms and lithologies,isotopic geochemistry,compositions of mineralizational liquor,and mineralizational physical-chemical conditions.At the same time,the mineralization has polyside,polygenetic,polyperiod, and polystage character which is similar to stratabound deposit’s. All these above prove that there is affinity between the mine-source straturm and deposit in Xiaoqinling area and Zhongtiao Mountain.So it can be concluded that we should pay attention to looking for gold in rich-copper Zhongtiao Mountain,and looking for copper in rich-copper Xiaoqinling area.By studying the affinity of those deposits in the southwest margin of North-China plate,it will promote new-stage deposit exploration in China

Key words: consanguinity, mine-source straturn in intial stage, layer-control deposit, Zhongtiao Mountain, the Xiaoqinling area