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塔西地区萨热克砂砾岩型铜多金属矿床位于塔拉斯-费尔干纳北西向右旋走滑断裂带、萨瓦亚尔顿-吉根左旋走滑逆冲断裂带、帕米尔冲断褶皱前锋带构成的三角区的中心部位,苏鲁铁热克断隆区北侧的中生代巴依次级拉分断陷盆地中。围绕苏鲁铁热克隆起带分布大量的中新生代砂砾岩型铜铅锌矿床,显示该隆起带对砂砾岩型铜铅锌矿床具有重要的控制作用。萨热克铜矿区主要地层岩矿石的微量元素和稀土元素地球化学特征,显示成矿物质来源主要来自于基底隆起区的剥蚀物,为陆相沉积环境。含矿地层库孜贡苏组杂砾岩中稀土元素整体亏损,显示存在强还原性盆地流体作用,矿床在还原性盆地流体作用下改造叠加富集。音频大地电磁测深反演恢复盆地基底形态特征,揭示富矿体与基底北西向隆起及其两侧的次级洼陷之间的构造坡折带具有密切空间关系,其构造岩相特征控制的同生构造带和层间裂隙带,有利于还原性盆地流体的运移聚集,它们可能是地球化学岩相学圈闭界面并导致沉淀金属元素,为深部找矿预测的构造岩相标志。
The Tarij area Sagacity conglomerate-type copper polymetallic deposit is located in the Taras-Fergana NW-trending strike-slip strike zone, the SAWAR-JAGAN L-strike-slip thrust belt, the Pamir thrust The center of the delta zone formed by the fold forward stripe and the Mesozoic Basa on the northern side of the Sulujikeke uplift are subdivided into sub-rifted basins. A large number of Mesozoic-Cenozoic conglomerate-type Cu-Pb-Zn deposits are distributed around the uplift of the Sulutezi, indicating that these uplifts play an important role in controlling the glutenite-Cu-Pb-Zn deposits. The trace elements and REE geochemical characteristics of the rock strata of the main strata in the Sagrek copper deposit show that the source of the ore-forming material comes mainly from the ablation material in the base uplift and is the continental depositional environment. The overall depletion of rare earth elements in the conglomerate of the Kuzi-Su-Su Formation in the ore-bearing strata shows the presence of strongly reductive fluid in the basin, and the deposit is altered and superimposed enrichment by the fluid in the reducing basin. The results show that there is a close spatial relationship between the orebodies and the structural slope break between the northwest uplift of the basement and the secondary subsidences on both sides of the basement and the control of tectonic facies characteristics The syngenetic tectonic belts and interlaminar fractured zones are favorable for the migration and accumulation of fluid in the reductive basins. They may be geochemical petrography traps and lead to the precipitation of metallic elements, which are structural lithofacies markers for the prediction of deep ore prospecting.