Study on the ore genesis of Saishitang skarn copper deposit,Qinghai Province

On the basis of the detailed field investigation,the paper summarizes the geological characteristics of the Saishitang copper deposit.In combination of the microscopic petro-graphic study and geochemical characteristics analysis of the deposit,the authors discussed the each evidence to support the deposit genesis as the seafloor exhalative deposit proposed by the previous researchers,and proposed different view about the deposit genesis.Furthermore,the tectonic setting,geological features of orebody and other geological and geochemical characteristics of the deposit were discussed,the mineralization process was analyzed.It is concluded that the formation of the Saishitang copper deposit is closely related to the quartz diorite porphyry and is the final product of the skarnization process.In summary,the Saishitang copper deposit belongs to the skarn type and there is no clear exhalative sedimentary process in the deposit area.