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内蒙古大碾子—姜家营子地区金及多金属矿床成矿条件与找矿方向

Ore-forming conditions and prospecting directions of the gold polymetallic deposits in the Danianzi-Jiangjiayingzi Region of Inner Mongolia

  • 摘要: 研究区位于重要成矿区——赤峰—朝阳矿集区的西段,矿集区内金、钼及多金属矿床集中发育。通过对研究区的成矿地质背景、典型矿床特征、地球化学异常特征、成矿条件及找矿标志的分析与总结,认为研究区具有良好成矿条件和较大找矿潜力;确定了研究区着重寻找的矿种应为Au、Ag、Zn、Mo等;主攻矿床类型应为与韧性剪切带有关的金矿床和火山岩—次火山岩型多金属矿床;研究区有多处成矿有利地段,如燕山期花岗岩体与闪长岩体接触带附近,火山断裂与区域断裂的复合部位,蚀变带内等。

     

    Abstract: The research area is located in the important mineralization zones,the west part of Chifeng-Chaoyang metallogenic province,where gold,molybdenum and polymetallic deposits concentrate and develop.Through the analysis and summary of the metallogenic geological background,typical deposit characteristics,geochemical anomalies,metallogenic conditions and prospecting signs in the research area,it is considered that the research area has good metallogenic conditions and great potential of mineralization; it is determined that the mineral species in the research area should be Au,Ag,Zn,Mo and so on; the main deposit types should be ductile-shear zone type gold deposits and volcanic-subvolcanic polymetallic deposits.The research area has many favorable places for prospecting,such as the contact zone of Yanshanian granite body and diorite body,the composite site of volcanic fracture and regional fracture,alteration zone and so on.

     

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