| 邰文星.综合物探方法在湖北大冶鸡冠咀铜金矿深部及外围找矿中的应用?[J].地质与勘探,2019,55(4):1010-1025 |
| 综合物探方法在湖北大冶鸡冠咀铜金矿深部及外围找矿中的应用? |
| Application of integrated geophysical methods to prospecting in the deep subsurface and peripheral area of the Jiguanzui copper-gold deposit in Daye of Hubei Province |
| 投稿时间：2018-08-20 修订日期：2019-05-27 |
| DOI：10.12134/j.dzykt.2019.04.011 |
| 中文关键词: 鸡冠咀铜金矿床 物探异常 找矿预测 吻合性 大冶 湖北 |
| 英文关键词: Jiguanzui copper-gold deposit geophysical anomaly,prospecting prediction, coincidence, Daye, Hubei Province |
| 基金项目:中国地质调查局专项（编号：1212011220701）资助。 |
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| 中文摘要: |
| 以鸡冠咀铜金矿床深部及其外围找矿预测为目标，在深入认识鸡冠咀铜金矿床地质特征的基础上，对研究区重力、磁测、电法测量资料进行精细反演，研究含矿地质体与物探异常的对应关系，获取矿区深部和外围物探异常信息。证实研究区岩矿石物性差异明显、与矿有关的地质体与重磁异常具有良好的吻合性，证实研究区内断裂接触带、大理岩俘虏体、隐伏岩体表现出重磁同高、重磁异常梯度带等特征，是寻找深部盲矿体的有利部位。总结了5种地球物理找矿标志，构建了“一个主要目标，两种分析，三种方法，五个找矿标志”的矽卡岩型铜金矿床的地球物理找矿模式，对鸡冠咀矿区深部及外围进行靶区优选，指导鄂东南矿集区矿产勘查工作，具有良好的示范作用。 |
| 英文摘要: |
| This study aims at prospecting prediction in the deep surface and peripheral area of the Jiguanzui copper-gold deposit.Based on geological characteristics and mineralization in this mine, refined inversion is conducted to gravity, magnetic and electrical survey data in the study area,which permits to reveal corresponding relationships between ore-bearing geological bodies and geophysical anomalies.It is confirmed that the physical properties of rock and ore are remarkably different in the study area.The ore-related geological bodies accord well with gravity-magnetic anomalies.It is proved that the fault contact zone, marble capture body, and concealed rock mass exhibitfeatures of same gravity-magnetic height and gravity-magnetic anomaly gradient zones, which are the favorable places for finding the deep blind ore bodies. Summarizing 5 geophysical prospecting indicators, a geophysical prospecting model of the skarn deposit is established as “a major goal, two analyses, three methods, and five prospecting signs”. Preferring target areasin the deep subsurface and peripheral area in Jiguanzui, are chosen as a demonstration to guide mineral exploration in the southeastern Hubei mining area. |
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