CAJ | 학술논문

青海省沱沱河楚多曲铅锌银矿床是近几年发现并正在勘查的大型铅锌矿床。利用Linkam（林克姆） THMS600型冷-热台对其主要蚀变矿物重晶石流体包裹体的进行了测试。结果表明，包裹体主要以纯液相及气液二相为主，气液二相流体包裹体的均一温度在170～220℃，盐度为4％～12％，成矿流体密度为0．92～0．98 g/cm3，成矿压力为11～22 MPa，估算成矿深度为1．1～2．2 km。综合研究认为，楚多曲铅锌银矿床是与中酸性岩脉密切相关的、浅成中低温热液脉型矿床。
청해성타타하초다곡연자은광상시근궤년발현병정재감사적대형연자광상。이용Linkam（림극모） THMS600형랭-열태대기주요식변광물중정석류체포과체적진행료측시。결과표명，포과체주요이순액상급기액이상위주，기액이상류체포과체적균일온도재170～220℃，염도위4％～12％，성광류체밀도위0．92～0．98 g/cm3，성광압력위11～22 MPa，고산성광심도위1．1～2．2 km。종합연구인위，초다곡연자은광상시여중산성암맥밀절상관적、천성중저온열액맥형광상。
Chuduoqu Pb-Zn-Ag Deposit,located in Tuotuo River of Qinghai province,is a large Pb-Zn depos-it discovered and explored in recent years.Test results on the main alteration mineral fluid inclusions of barite made by Linkam THMS600 cold-hot station show that the main phases of inclusions are pure liquid and gas-liquid.The homoge-neous temperature of the two phases is between 170 ℃and 220 ℃.The salinity ranges from 4%to 12%NaCl.The ore-forming fluid density is from 0.92 to 0.98 g/cm3 .The ore-forming pressure is between 11 Mpa to 22 Mpa.The es-timated metallogenic depth ranges from 1.1 km to 2.2 km.Combined with ore deposit geological background,Chuduo-qu Pb-Zn-Ag Deposit is closely related to the acidic dike,which is hypabyssal and medium-low temperature fluid vein type deposit.