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Chen Ear Gold Deposit Law Of Structural Control Of Ore And Metallogenic Prediction

Posted on:2004-11-12Degree:MasterType:Thesis
Country:ChinaCandidate:J B LiFull Text:PDF
GTID:2190360095957500Subject:Structural geology
Abstract/Summary:PDF Full Text Request
Xiaoqingling is located the south of Huabei platform, It is one of the importment base of gold production. From rocks and sediments, we know the region of Xiaoqingling is provided with typical two laies model of the earth' s crust, It' s basement is Taihua group of primeval, it' s cover rocks is sediment and lava. From pattern of construct, we may know Shanqian fault in north of Xiaoqingling and Luonan fault in south of Xiaoqingling are delimitation faults, Xunmadao fault is located in the middle of Xiaoqingling, Many great and middle ore deposits are distributed in both of Xunmadao fault.Chener gold deposit is located in north of Xunmadao fault, the types of ore are gold-brazil-quartz of vein and gold-multimetal-quartz of vein.The occurrence of gold-bearing quartz vein is controlled by ductile- brittle shear zone, Most The occurrence of gold-bearing quartz vein included by schistous zone and cracked zone, In the strike direction of gold-bearing quartz vein, it' s high content and great thickness appear on NWW, in the direction of tilt, it' s high content and great thickness appear on the part of transformation from big angel of tilt to small angel of tilt.In the process of writing paper, assimilating sufficiently procedessor' research achievement, exertting ductile- brittle shear zone, resolving mechanism of formation of gold-bearing quartz vein of chener. Lining out ductile- brittle shear zone of chener gold deposit, presenttig pattern of controlling chener gold deposit, with analyzing of dominant ore vein-Q507,graph of change of trace element on different spot level and graph of change of gold element of different construct, researching construct geochemistry of ore zone.Using pattern of controlling chener gold deposit, combining with feature of construct geochemistry of ore zone, we can make this conclusion that is in the deepths of Q507 and Q9503 have foreground of finding ore. Using principle of "V" , performing interspace of Q9503, combining with graph of geochemistry, indicating next foreground of finding ore.
Keywords/Search Tags:Xiaoqinling, Taihua group of primeval, Xunmadao fault, ductile- brittle shear zone, construct geochemistry, principle of "V", indicate
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