构造地球化学找矿方法在山东沂南金矿的应用及效果

发布时间：2018-02-09 13:47

本文关键词： 金矿断裂构造地球化学测量沂南山东　出处：《矿物岩石地球化学通报》2017年04期 　论文类型：期刊论文

【摘要】：为提高危机矿山找矿效果,运用构造地球化学测量,辅以坑道地质调查及编图、构造蚀变带填图和岩矿测试分析等手段在山东沂南金矿进行了找矿研究。结果表明,中性、酸性岩体接触带附近的寒武系和上元古界层间滑动带控制了矽卡岩型层状金铜矿体的产出,而在远离接触带的部位,高角度次级北北东、北西西-北西向断裂控制了构造蚀变岩型金铜矿体及异常的展布,其亦是矿区重要的控岩和控矿构造类型。Au、Ag、Cu、Mo、As、Sb、Hg是矿液带入的元素,Ti、Cr、V、Rb是围岩经蚀变带出的元素。Au、Cu具有共同迁移和沉淀的特征。构造地球化学找矿在堆金山片区和燕子湖片区取得了重要突破,下一步工作要重视沂沭断裂带附近第四纪覆盖区低缓构造地球化学异常之下隐伏的构造蚀变岩型金矿的找矿。
[Abstract]:In order to improve the prospecting effect of the crisis mine, ore prospecting was carried out in Yinan Gold Mine, Shandong Province by means of structural geochemistry survey, along with tunnel geological survey and mapping, structural alteration zone mapping and rock ore test analysis. The results show that the gold deposit is neutral. The Cambrian and Upper Proterozoic interlaminar slip zones near the contact zone of acidic rock bodies control the occurrence of skarn layered gold and copper orebodies. NW-NW faults control the distribution of structural altered rock type gold and copper orebodies and anomalies. It is also an important type of rock-controlling and ore-controlling tectonics in the mining area. Au-Ag-Ag-Cu-Mo-Mo-As-Sb-Hg is the element brought in by ore solution. The element. Au-Cu is the element of the wall rock meridional alteration belt. The tectonic geochemical prospecting is in Duijinshan area and Yanzi Lake, and it is characterized by the common migration and sedimentation of the elements of the ore-controlling and ore-controlling tectonics. Major breakthroughs have been made in the region. In the next step, attention should be paid to the prospecting of the tectonic-altered rock type gold deposits in the Quaternary overlying area near the Yishu fault zone.
【作者单位】：桂林理工大学地球科学学院;
【基金】：国家自然科学基金项目(41263003) 矿床地球化学国家重点实验室开放课题(201308) 山东黄金地质矿产勘查公司项目(2012-2013)
【分类号】：P618.51;P632

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