GEOLOGICAL CHARACTERISTICORIGIN AND MINERALIZATION REGULATION RESEARCH OF HUDELE PRORPHGRY COPPER DEPESIT IN BAOGUTU AREA,WESTERN JUNGYAR

The Hudehe Porphyry Copper Deposit locates in the Baerkashi porphyry mineralization belt,which is in Baogutu area,West Junggar Basin Xinjiang.The geotectonic position is located in Bagutu arc,Tangbala_Kalamaile Paleozoic composite trench-arc system of Kazakhstan-Junggar plate.It occurres at the cross position of the NE-NS secondary faults,between the Daerbuti and Kewu deep faults.The No.Ⅴ rock body is composite intermediate-acid hypabyssal rock which from the deep.The ore bearing rocks are composed of mid-coarse grained porphyritic quartz-diorite,granodiorite porphyry mainly,and granodiorite,granite porphyry,biotite granodiorite etc.secondly.The age of the rock is about 300-320Ma.The strong alteration of the rock body shows K-feldspar granular quartz zone →K-silicate zone→quartz-sericite zone→propylitic zone from inner outwards.The metallic mineral assemblage also shows(pyrite-molybdenite-chalcopyrite)→(pyrite-chalcopyrite-sphalerite-molybdenite)→(pyrite-chalcopyrite-arsenopyrite –Te-Bi-Ag-Au minerals) from inner outwards.The main types of ore are fine-grained disseminated ore and veinlet-disseminated ore.The characteristics of the ore are low grade,homogeneous mineralization,the main minerals from the paragenetic magma,typical porphyry copper deposit.The deposit shows typical changing mineralization regulation of the constitution,rock type,alteration,minerals and elements of mineralization in the space age,and also is related with the minerals concentration.