The Genesis And Metallogenic Prediction Of The Lead-Zinc Polymetallic Deposit In Sokor District, Malay Peninsular

Sokor, one of the larger polymetallic ore field with Pb-Zn-Au-Ag, situated in Tanah Merah County Kelantan Malaysia, is located in the western segment of the Pacific rim metallogenic belt and the northern section of the central gold mineralization belt in the Malay Peninsula. Tectonically, Sokor is located in the eastern segment of Himalayan-Tethyan tectonic belt and in the juncture of Eurasian plate, the Pacific plate and Indian plate as well. Mason is located in the south of the district while Sg Among is appeared in the northeast.Taking Mason and Sg Among polymetallic deposits as study cases, the paper has analyzed the gensis of deposits and established the metallogenic mechanism of these deposits in the Sokor based on the studies which have been done before and the researches on the geological and geochemical characteristics of the deposits.The paper has also discussed the geological conditions of Pb-Zn polymetallic deposits, summed up the metallogenic regularities and signs which is good for prospecting and indicated the prospecting direction. Finally, the prediction for prospecting in the areas where are beneath or nearby the ores which have been found and the areas outside the Sokor has been done.The studies show that generally geological characteristics of both Mason and Sg Among are similar despite there are some differences in geological characteristics.It can be suggested that the gensis of deposits have some similarities and the wall rock somehow might make some contribution to the ore-forming material by the fact that Mason and Sg Among have the similar features on wall rock, ore-forming element and trace element.The characteristics of rare earth elements reveal that the materials of wall rocks and ore originate from the crust.The chondrite normalized patterns of rare earth element features the right gently inclined. Eu shows negative abnormity. All these studies indicate that the ore-forming temperature lowers250℃.Sulfur isotopic has the characteristics of magmatic sulfur which suggests that the ore-forming materials are mainly from the magma;Fluid inclusion studies indicate that the nature of ore-forming fluids are similar that feature on low temperature, low salinity and low density. All the studies show that the fluid is a type of Magmatic hydrothermal solution which is rich in Ca2+,K+,Na+,Cr,SO42-.Compared with Mason deposit, the ore-forming fluid of Sg Among deposit has medium and low temperature, Low salinity and density.Based on synthetic studies on the geological and geochemical characteristics of Sg Among deposits and Mason deposits, it can be indicated that Mason deposit is a magmatic hydrothermal lead-zinc polymetallic deposit which is located the fracture zone between tuffaceous phyllite rock and the marble while Sg Among deposit is also a lead-zinc polymetallic magmatic hydrothermal ore deposit that is filled in the secondary fracture caused by F5.Metallogenic model can be divided into three stages:an initial enrichment, tectonic-magmatic activities and aggregation of circulation.Through the analysis of the mining area lead-zinc polymetallic deposit ore-forming geological conditions, summarizes the metallogenic regularities and prospecting indicators, consider that the orebody’s depth and the ore mining area periphery has good ore prospects...