论文部分内容阅读
通过对萨热克铜矿床典型勘探线和坑道构造岩相学填图及相体解剖工作,对其沉积相类型、储矿相体结构、成矿作用等进行了研究,认为本区沉积相类型主要为山麓冲积扇相、旱地扇扇中亚相、湿地扇扇中亚相、湖泊沼泽相、滨湖相、浅湖‐半浅湖相、辫状河三角洲前缘亚相等。上侏罗统库孜贡苏组形成以旱地扇±残余山间湖泊相(尾闾湖)湿地扇的叠加复合扇扇中亚相(库孜贡苏组上段),叠加复合扇扇中亚相紫红色和灰黑色铁质杂砾岩类为萨热克铜矿床的储矿相体,其微相类型分为水道微相、席状片流微相、叠加复合扇微相、冲刷面微相、筛积微相和泥石流微相。切层断裂‐层间滑动构造形成的碎裂岩化及后期沥青类盆地流体叠加改造部位,矿体具有明显富集作用,显示构造‐岩性‐岩相多重耦合特征。
Based on the lithofacies mapping and facies anatomy of the typical exploration line and tunnel structure of the Sagyok copper deposit, the types of sedimentary facies, the structure of the ore body and the metallogenesis were studied. It is concluded that the sedimentary facies The main types are alluvial fan facies, dry fan fan mid-facies, wet fan fan subphase, lacustrine facies, lacustrine facies, shallow lacustrine-semi-shallow lacustrine facies, and braided delta deltas. The Upper Jurassic kuizigongsu Formation formed a superimposed compound fan-fan middle-subfacies (the upper part of the Kuzigongsu Formation) in the dry fan ± remnant lacustrine facies (tail lake) Fuchsia and gray-black iron-bearing conglomerate rocks are the ore-body facies of the Sagrek copper deposit. The microfacies are divided into water channel microfacies, sheet-like sheet microfacies, superimposed composite fan microfacies, Phase, sieve microfacies and debris flow microfacies. The results show that the ore bodies have obvious enrichment and show the multi-coupling features of tectonic, lithologic and lithofacies.