论文部分内容阅读
老厂矿田东部是个旧矿区重要的成矿区域之一,矿床地质特征、控矿因素和成矿规律的综合结果表明,该区矿床的产出受地层、构造和岩浆岩的联合控制,矿床的分布以老卡花岗岩体为中心,呈北东向展布,且矿床在平面和垂直方向上具有等间距产出的规律,而成矿元素在平面上具有明显的分带性,其中,内接触带以锡矿化为主,外接触带则以铜矿化为主,在垂向上,上部为锡铜共生,下部以铜为主并伴生锡。根据实际勘探资料,结合前人研究成果,对深部进行了成矿预测,提出了蒙自庙断裂南北部区域两个重点找矿靶区,在该理论指导下,新增铜和锡资源金属储量5万余吨,这对缓解矿山资源危机,保障矿山生产持续和开展深部找矿具有重要现实意义。
The eastern part of Laochang ore field is one of the important metallogenic areas in Gejiu Mining Area. The comprehensive results of ore deposit geological features, ore-controlling factors and metallogenic regularities show that the output of the ore deposit in this area is controlled by the combination of strata, structure and magmatic rocks. The distribution is centered on the Laocca granite body and is distributed in the northeast direction. The ore deposit has equidistant output regularity in the plane and the vertical direction. However, the ore-forming elements have obvious zonation in the plane, in which the inner contact Belt dominated by tin mineralization, the outer contact with the main copper mineralization, vertically, the upper part of tin and copper symbiosis, the lower part of the main copper and associated with tin. According to the actual exploration data, combined with the previous research results, the deep metallogenic prediction was made and two key ore prospecting targets in the northern and southern parts of the Mengzimiao fault were proposed. Under the guidance of this theory, new metal reserves of copper and tin resources 50,000 tons, which have important practical significance in alleviating the crisis of mine resources, ensuring the continuous production of mines and carrying out deep prospecting.