Geochemical Exploration Model Of Gold Deposits In Shandong Province

Shandong province is a big province of gold mine in China.The output and reserves of gold resources rank first in the country.This paper selects the Linglong gold deposit in Zhaoyuan County,the Qibaoshan gold-copper deposit in Wulian County and the Guilaizhuang gold deposit in Pingyi County as the research objects.Through the study of the geological characteristics and exploration geochemical characteristics of these three typical gold deposits,the geochemical prospecting models for the three gold deposits are established separately.Based on the geochemical prospecting models of the three gold deposits,a geochemical prospecting model for gold deposits in Shandong Province is established.The auriferous strata of Linglong gold deposit is granite in Jurassic.The ore body is exposed and mainly controlled by fault structures.Gold mineralization is closely related to pyritesericite-quartz alteration.The indicator element for prospecting in regional geochemical exploration are 6 elements(Au,Ag,As,Cu,Hg,Pb)in total.The indicator elements for prospecting during rock geochemical exploration are 22elements(Au,Ag,As,Ba,Bi,Cd,Co,Cr,Cu,F,La,Mo,Nb,Ni,Pb,Sb,Sn,Sr,V,W,Zn,Zr)in total.The universal indicator elements for prospecting are 5 elements(Au,Ag,As,Cu,Pb)in total.The auriferous pluton of Qibaoshan gold-copper deposit is Qibaoshan subvolcanic complex.The ore body is exposed and mainly controlled by ancient volcanic structures and cryptoexplosive breccia bodies.Gold mineralization is related to silicified and potassium long petrochemical.The indicator element for prospecting in regional geochemical exploration are 12 elements(Au,Ag,Ba,Bi,Cu,La,Mo,Pb,Sr,Th,W,Zr)in total.The indicator elements for prospecting during rock geochemical exploration are 2 elements(Au,Cu)in total.The universal indicator elements for prospecting are 11 elements(Au,Ag,Ba,Bi,Cu,La,Mo,Sr,Th,W,Zr)in total.The auriferous strata of Guilaizhuang gold depositis is Carbonatein in Cambrian-Ordovician.The ore body is exposed and mainly controlled by fault Structures.Gold mineralization is related to silicification and petrochemical.The indicator element for prospecting in regional geochemical exploration are 14 elements(Au,As,B,Bi,Co,Cu,F,Li,Mo,Ni,Sb,Sn,W,Zn)in total.The indicator elements for prospecting during rock geochemical exploration are 12 elements(Au,Ag,Be,Cd,Cu,F,Hg,Sb,Sn,V,W,Zr)in total.The universal indicator elements for prospecting are 6 elements(Au,Cu,F,Sb,Sn,W)in total.The universal indicator elements for prospecting in Shandong Province are 4 elements(Au,Ag,Cu,W)in total.