CAJ | 학술논문

青海铜峪沟铜矿床位于祁漫塔格-鄂拉山成矿亚带鄂拉山多金属矿带东南段。通过对铜峪沟铜矿床的矿石矿物微量元素地球化学研究及矿石矿物的稳定同位素研究，探讨该矿床的成矿物质及流体来源，确定矿床的成因。从测试结果来看，稀土元素配分模式为轻稀土较富集、重稀土亏损、分馏程度较高、Eu中度-强烈亏损，显示矿石物质来源为混合来源；硫同位素δ34 S测试结果全为负值，属轻硫型，总体上揭示出硫主要来自地层的沉积硫；铅同位素测试数据表明矿石铅部分来自沉积成岩阶段，部分与印支期造山运动有关，表明成矿物质混合来源的特征，富成矿流体在成矿之前存在均一化过程。氢、氧、硅同位素研究表明成矿热液为原生岩浆水和变质热液水，反映成矿物质来源与岩浆热液活动有关。通过研究认为，铜峪沟铜矿床为矽卡岩型铜矿床。
청해동욕구동광상위우기만탑격-악랍산성광아대악랍산다금속광대동남단。통과대동욕구동광상적광석광물미량원소지구화학연구급광석광물적은정동위소연구，탐토해광상적성광물질급류체래원，학정광상적성인。종측시결과래간，희토원소배분모식위경희토교부집、중희토우손、분류정도교고、Eu중도-강렬우손，현시광석물질래원위혼합래원；류동위소δ34 S측시결과전위부치，속경류형，총체상게시출류주요래자지층적침적류；연동위소측시수거표명광석연부분래자침적성암계단，부분여인지기조산운동유관，표명성광물질혼합래원적특정，부성광류체재성광지전존재균일화과정。경、양、규동위소연구표명성광열액위원생암장수화변질열액수，반영성광물질래원여암장열액활동유관。통과연구인위，동욕구동광상위석잡암형동광상。
Tongyugou copper deposit is located in the southeast segment of the Elashan polymetallic belt in Qimantage-Elashan ore-forming subzone.Based on the trace element geochemistry and the stable isotopes of Tonyugou copper deposit,this paper studied the source of ore-forming material and ore-forming fluids,identified the genesis of Tongyugou copper deposit.From the test results,the rare earth element distribution patterns are approximately consistent,the REE patterns are enriched in LREE and are depleted in HREE with high fraction-ation and negative Eu anomaly,demonstrating that the ore material comes from multi-source;sulfur isotope compositions δ34S measurement are full-negative,belong to light sulfur type,revealing that the whole S was from the sedimentary sulfur;the demographics of Pb isotopic compositions showing that the lead was mainly from the ore deposition diagenetic stage,and partly from the Indosinian orogeny,which is closely related to Indo-Chinese orogenic movement.Hydrogen,oxygen and silicon isotope studies shown that the metallogenic fluids stemmed from magmatic water and mixed with metamorphism hydrothermal.The overall reflection show that the ore-forming material sources was related to the magmatic-hydrothermal activities.In general,Tongyugou copper deposit is a skarn type copper deposit.