Geochemical Explorationmodel Of Gold Deposits In Eastern South China Metallogenetic Province

Eastern South China Metallogenetic Province is an important gold producing area,many large or super large gold depositslocated in the region.Four typical gold deposits are selected in the essay,there are Zhilingtou gold-silver deposit,Zijinshan gold-copper deposit,Changkeng gold-silver deposit and Hetai gold deposit.This paper research including three aspect,including geology of ore deposit,1:200000 stream sediment date and the date of rock geochemical.Throughthe study,establish the eastern Southern China Metallogenetic Province tyical deposit geochemical exploration models,on this basis,then establish the geochemical prospecting model of the eastern Southern China Metallogenetic Province.Zhilingtou gold-silver deposit is located in Zhejiang province,the type of this deposit is metamorphic clastic rock hydrothermal,the ore deposit is exposed to the surface,it's clearly controlled by fracture tectonics,the shape of the ore body is pulse and lens,the region geochemical exploration prospecting indicator elements of the deposit including Au,Bi,Pb,Zn,Ag,Hg,Ba,Zr,Th,U;the rock geochemical exploration prospecting indicator elements of the deposit including Au,W,Mo,Cu,Pb,Zn,Ag,As.Zijinshan gold-copper deposit is located in Fujian province,the type of this deposit is volcanic,the ore deposit is exposed to the surface,it's obvious controlled by fracture tectonics,the shape of the ore body is lens and vein,the region geochemical exploration prospecting indicator elements of this deposit includingAu,W,Sn,Mo,Bi,Cu,Pb,Ag,Sr,U;the rock geochemical exploration prospecting indicator elements of the deposit including Au,Sn,Mo,Bi,Cu,Pb,Ag,As,F,Nb,U.Changkeng goldsilver depositis located in Guangdong province,the type of the deposit is micro disseminate,the ore deposit is exposed to the surface,it's clearly controlled by fracture tectonics,the shape of the ore body is lens and layer,the region geochemical exploration prospecting indicator elements of the deposit includingAu,Pb,Cd,Ag,As,Sb;the rock geochemical exploration prospecting indicator elements of the deposit including Au,Mo,Cu,Pb,Zn,Cd,Ag,As,Sb,Hg,Ba,U.Hetai gold deposit is located in Guangdong province,the type of the deposit is magmatic hydrothermal,the ore deposit is exposed to surface,it's clearly controlled by fracture tectonics,the shape of the ore body is lens ? lenticular and layer,the region geochemical exploration prospecting indicator elements of the deposit including Au,Sn,Bi,Hg,Be,B,Zr,U,Y;the rock geochemical exploration prospecting indicator elements of the deposit including Au,W,Sn,Bi,Cu,Ag,As,Hg,Co,U.In the eastern South China Metallogenetic Province,the region geochemical exploration prospecting indicator elementsof gold deposit are Au,Ag,Pb,Bi,U,Th,the grade of main metallogenic element(Au)greater than 5,the grade of associated elements(Pb,Ag)greater than 3,the grade of associated elements(Bi,Th,U)greater than 1.The rock geochemical exploration prospecting indicator elements of the gold depositareAu,W,Sn,Mo,Bi,Cu,Pb,Zn,Cd,Ag,As,Hg,F,U,the grade of main metallogenic element(Au)greater than 5,the grade of associated elements(Cu,Ag,Zn)greater than 4,the grade of the associated elements(Pb,Cd)greater than 3,the grade of e associated elements(W,Mo,Bi,Hg)greater than 2,the grade of associated elements(Sn,As)greater than 2,the associated elements(F,U)exception level is 1.In the eastern South China Metallogenetic Province,the elements in region geochemical exploration and rock geochemical exploration all have abnormal included Au,Ag,Bi,Pb,and U.