Relationship Between Volcanic Activity of Gadekao Formation and Polymetallic Mining in Kaxinling Polymetallic Mining Deposit in Sanjiang Mineral Belt

Based on field geological observation and indoor analysis,we have reclassified the stratum in Kaxinling polymetallic mining deposit,and discussed the metallogenic geological features mineralization mechanism of the deposit.There are 4 sections of ore that have circled 15 ore bodies including 8 concealed ore bodies.10 of them are Fe-ore-body and 5 are Zn-ore-body.All of the ore bodies are grown in volcanic rocks of early Permain Gadekao Formation.The volcanism formed six rhythmic layers in three effusive period according to the rock association.The genesis of the deposit is a volcanic plume(VMS)zinc polymetallic deposit,and volcanic rocks are the most important regional prospecting criteria.