豫西洛宁县铁炉坪Ag多金属矿床的CSAMT剖面及找矿意义

发布时间：2018-01-30 21:48

本文关键词： 铁炉坪 Ag多金属矿 CSAMT剖面深部找矿　出处：《地质与勘探》2016年02期 　论文类型：期刊论文

【摘要】：为获得新的深部找矿靶区,在铁炉坪Ag多金属矿床实施了CSAMT法测深。CSAMT剖面中,高、中、低电阻率异常体边界清晰、形态各异,高阻异常体具有上、下双层结构,低阻异常体出露较小,多呈孤立形态产出,主要有400m低阻异常体和1400m低阻异常体。高阻异常体被解释为浅部和深部两层岩浆和深部流体活动的产物,推测深部高阻异常体以岩浆体系为主,浅部高阻异常体应是岩浆体系、深部流体体系及围岩硅化蚀变等的综合反映。400m低阻异常体对应于于地表剖面线400m~600m之间的主矿脉,表明它是深部成矿流体的显示,提出1400m低阻异常体为新的深部找矿靶区。
[Abstract]:In order to obtain the new deep prospecting target, the CSAMT sounding method is used in the section of the Tietaoping Ag polymetallic deposit. The boundaries of the anomaly bodies with high, middle and low resistivity are clear and the shapes are different. The high resistivity anomaly body has upper and lower double layer structure, and the low resistivity anomaly body is small, and it is mostly produced in isolated form. There are mainly 400m low-resistivity anomaly bodies and 1400m low-resistivity anomaly bodies. The high-resistivity anomaly bodies are interpreted as the products of shallow and deep magma and deep fluid activities. It is assumed that the deep high-resistivity anomaly bodies are dominated by magmatic system. The shallow high resistivity anomaly body should be a magmatic system, the deep fluid system and the wall rock silication alteration reflect the. 400m low resistivity anomaly body corresponding to the main ore vein between 400m and 600m of the surface profile. It shows that it is the display of deep ore-forming fluid, and it is suggested that 1400m low resistivity anomaly body is a new deep ore-prospecting target area.
【作者单位】：河南省有色金属地质勘查总院;河南省有色金属深部找矿勘查技术研究重点实验室;
【基金】：国家自然科学基金项目(U1504405) 河南省国土资源厅科技攻关项目(2011-622-25、2011-622-36、2014-06和2016-08)资助
【分类号】：P618.2
【正文快照】： 歐意义。0引百熊耳山两端的沙沟-龙门店Ag多金属矿集1地质特区,是河南省最大的Ag金属产地典型矿床有沙沟-龙n店Ag多金属矿集区地处华北克沙沟Ag多金属矿、月亮沟Ag多金属矿、蒿坪沟拉通北缘(图la),矿集区内主要出露太古代太Ag多金属矿、铁炉坪Ag多金属矿、龙门店Ag多华群变质

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