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现代矿业 ›› 2020, Vol. 36 ›› Issue (05): 1-4.

• 地质·测量 •    下一篇

尖峰顶花岗岩体群与尖峰顶钼矿的成因关系及地球化学特征

王忠伟 钱红丽 赵震云 黄英   

  1. 广西壮族自治区区域地质调查研究院
  • 出版日期:2020-05-26 发布日期:2021-09-16

Genesis and Geochemical Characteristics of the Granite Groups and the Molybdenum Deposits

Wang Zhongwei Qian Hongli Zhao Zhenyun Huang Ying   

  1. Guangxi Zhuang Autonomous Region,Regional Geological Survey Research Institute
  • Online:2020-05-26 Published:2021-09-16

摘要: 为分析尖峰顶花岗岩体群与尖峰顶钼矿的成因关系及地球化学特征,结合相关地质工作成果,分析了尖峰顶地区花岗体群主要特征,地球化学特征,在此基础上分别进行了花岗岩体高精度的LAMCICPMS锆石UPb精确定年、全岩、稀土及微量元素分析、1∶5万水系沉积物测量及1∶1万地化剖面测量工作,对测量结果进行了详细的解译。①获得尖峰顶岩体群207Pb/235U加权平均年龄为(108.34±0.88)Ma,时代属早白垩世,呈浅成相花岗闪长斑岩脉成群展布。表明其深部可能存在隐伏岩体,且与区内Mo、W等多金属成矿关系密切;②经过地球化学测量,圈定Mo、Pb元素异常5处,发现2处钼矿化带及6个Pb矿化体。分析表明,尖峰顶地区找矿潜力巨大,特别是对于该区进一步开展深部找矿勘查有一定参考价值。

Abstract: In order to analysis Genesis and Geochemical Characteristics of the Granite Groups and the Molybdenum Deposits,In combination with relevant analysis of geological work,the jianfengding crest region granite body of main characteristics,geochemical characteristics,on the basis of the granite rock mass respectively highprecision LAMCicpms zircon UPb determine years,whole rock,rare earth and trace elements analysis,1∶50 000 stream sediment survey and 1∶10 000 geochemical profile measurement,the measurement results are detailed interpretation,①obtain peak rock group of top 207 Pb/235 U weighted average age was (108.34 + 0.88) Ma,age belong to the early cretaceous,The granodiorite porphyry veins in the shallow facies are distributed in groups,which indicates that there may be hidden rock mass in the deep part of the granodiorite veins,and it is closely related to Mo,W and other polymetallic metallogenesis in the area.②After geochemical measurements,5 anomalies of Mo and Pb elements were delineated,2 molybdenum mineralization zones and 6 Pb mineralization bodies were found.The above analysis shows that the prospecting potential of the peak area is huge,especially for the further exploration in the depth of the area has certain reference value.

Key words: Granite group, Molybdenum ore, Geological characteristics, Geochemical characteristics