Geochemical Exploration Model Of Gold Deposits In Western South China Metallogenetic Province

Western South China Metallogenic Province is an important gold producing area,many large and large gold deposits are located in this area.Yunnan Jinping Chang'an gold deposit,Hainan Ledong Panglun gold deposit,Guizhou Zhenfeng Shuiyantong gold deposit and Guangxi Guigang Longtoushan gold deposit are four representative gold deposits in this area.This paper research including three aspect,including geology of ore deposit,1:200000 stream sediment date and the date of rock geochemical.Through the study,establish the wastern Southern China Metallogenetic Province typical deposit geochemical exploration models,on this basis,then establish the geochemical prospecting modle of the wastern Southern China Metallogenetic Province.Chang'an gold deposit is located in Yunnan province,the type of this deposit is magmatic hydrothermal,the ore body is exposed state,it's obviously controlled by the fault structure,the shape of the ore body is lenticular and like layer.The region geochemical exploration prospecting indicator elements of the deposit including Au,W,Mo,Bi,Cu,Pb,Zn,Cd,Ag,As and Sb.The rock geochemical exploration prospecting indicator elements of the deposit including Au,Mo,Cu,Pb,Ag,As,Sb,Hg,B,Sr and Ba.Baolun gold deposit is located in Hainan province,the type of this deposit is magmatic hydrotherma,the ore body was hidden state,by the fracture control was obvious,the shape of the ore body is vein.The region geochemical exploration prospecting indicator elements of this deposit including Au,W,Zr,Th.The rock geochemical exploration prospecting indicator elements of the deposit including Au,Mo,Bi,Cu,Pb,Ag,As,Li,Be,La,Y,Co,V,Cr.Shuiyindong gold deposit is located in Guizhou province,the type of the deposit is micro disseminate,the ore body was hidden state,it is obviously controlled by the fault structure,the shape of the ore body is lens.The region geochemical exploration prospecting indicator elements of the deposit including Mo,Cu,Pb,As,Sb,Hg,Sr,Ba,Th,U.The rock geochemical exploration prospecting indicator elements of the deposit including Au,W,Mo,Cu,Cd,Ag,As,Sb,Hg,Sr,Th,Co,Ni,V.Longtoushan gold deposit is located in Guangxi province,the type of the deposit is continental volcanic rock,the ore body is exposed.The volcanic rock mass and fault control are obvious,the shape of the orebody is lenticular and Veins.The region geochemical exploration prospecting indicator elements of the deposit including Au,Ag,As,Sb,W,Sn,Mo,Bi,Pb,Cd,B.The rock geochemical exploration prospecting indicator elements of the deposit including Au,Ag,As,Sb,Hg,W,Sn,Mo,Bi,Cu,Pb,Zn,B,U,Co.In the western South China Metallogenetic Province,the region geochemical exploration prospecting indicator elements of gold deposit are(Au,Ag,As,Mo,Bi,Cu,Cd,Pb,Sb,W,Sr,Th).The grade of main metallogenic element(Au)greater than 3;the anomalous intensity of the associated elements(Ag,As,B,Bi,Cd,Cu,Pb and Sb)are greater than 2;the abnormal intensity of the associated elements(Mo,Sr,Th and W)are greater than 1.The rock geochemical exploration prospecting indicator elements of the gold deposit are(Au,Ag,As,Mo,Bi,Cu,Pb,Cd,Sb,Hg,W,B,Sr,Th,Co and V).The grade of main metallogenic element(Au and Th)greater than 5;the grade of associated elements(Bi and Cd)greater than 4;the grade of associated elements(As,Sb and W)greater than 3;the grade of associated elements(Ag,Cu and Hg)greater than 2,the grade of associated elements(B,Co,Mo,Pb,Sr and V)greater than 1.In the wastern South China Metallogenetic Province,the elements in region geochemical exploration and rock geochemical exploration all have abnormal included Au,Ag,As,Mo,Bi,Cu,Cd,Pb,Sb,W,Sr and Th.