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内蒙古敖汉旗大黑山金矿床地质特征与构造控矿作用

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文章导航 > 地质力学学报 > 1998 > 4(2): 14-20

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孟宪刚, 曲玮, 石磊, 杨玉东, 田晓娟, 贾洪杰, 刘志滨. 内蒙古敖汉旗大黑山金矿床地质特征与构造控矿作用[J]. 地质力学学报, 1998, 4(2): 14-20.
引用本文: 孟宪刚, 曲玮, 石磊, 杨玉东, 田晓娟, 贾洪杰, 刘志滨. 内蒙古敖汉旗大黑山金矿床地质特征与构造控矿作用[J]. 地质力学学报, 1998, 4(2): 14-20.
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Meng Xiangang, Qu Wei, Shi Lei, Yang Yudong, Tian Xiaojuan, Jia Hongjie, Liu Zhibin. CHARACTERISTICS OF THE DAHEISHAN GOLD DEPOSIT IN-AOHAN QI,INNER MONGOLIA,AND THE STRUCTURAL-CONTROL OF MINERALIZATION[J]. Journal of Geomechanics, 1998, 4(2): 14-20.
Citation: Meng Xiangang, Qu Wei, Shi Lei, Yang Yudong, Tian Xiaojuan, Jia Hongjie, Liu Zhibin. CHARACTERISTICS OF THE DAHEISHAN GOLD DEPOSIT IN-AOHAN QI,INNER MONGOLIA,AND THE STRUCTURAL-CONTROL OF MINERALIZATION[J]. Journal of Geomechanics, 1998, 4(2): 14-20.
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内蒙古敖汉旗大黑山金矿床地质特征与构造控矿作用

  • 1.

    中国地质科学院地质力学研究所

  • 2.

    地矿部科技司

  • 3.

    内蒙古敖汉旗金厂沟梁金矿

CHARACTERISTICS OF THE DAHEISHAN GOLD DEPOSIT IN-AOHAN QI,INNER MONGOLIA,AND THE STRUCTURAL-CONTROL OF MINERALIZATION

  • 1.

    Institute of Geomechanics, CAGS

  • 2.

    Department of Science and Technology, MGMR

  • 3.

    The Jinchanggouliang Gold Deposit in Aohan, Inner Mongolia

    摘要
  • 大黑山金矿产于华北地台北缘努鲁儿虎隆起带太古代深变质杂岩中,与燕山期侵入的大黑山花岗质杂岩体具密切的成因联系。金矿床属于破碎蚀变岩和蚀变岩-石英脉型,其W18O为2.89-14.74‰,W34S为-1.30-4.27‰,成矿温度在235-300℃之间,故为中温岩浆热液矿床。矿区内广泛发育近EW向、NE向和NW向三组断裂构造,主要工业矿体受近EW向破碎带控制,而NE向和NW向破碎带矿化较弱,但二者与近EW向破碎带的复合部位往往形成富矿体。地质调查表明,金矿床主要受控于中浅层次的脆性断裂,而与深层次的韧性剪切带无直接联系。
    The Daheishan gold deposit located in the Nuluerhu uplift belt in the northern margin of the North China Platform developed in the Archean high-grade metamorphic complex.The origin of the gold deposit is closely related to the Yanshanian Daheishan granitic intrusion.The gold deposit belonging to fragmentation-alteration type and or alteration-quartz vein type is regarded as a mesothermal ore deposit since its mineralization temperature ranges from 235℃ to 300℃,W18O from 2.89‰ to 14.74‰,and W34S from-1.30‰ to 4.27‰.The nearly W-E-trending faults,which are the major fractures that control industrial ore bodies,and NE-and NW-trending ones with weak mineralization developed widely in the mining area.The pay shoot,however,was usually formed where the W-E-trending faults join the NW-and NE-trending ones.Detailed study in the field suggests that the gold mineralization is mainly controlled by the brittle faults formed at shallow and medium depth,rather than by a ductile-shear zone formed at a deep level.
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出版历程
收稿日期:  1997-12-10
修回日期:  1998-04-10
刊出日期:  1998-04-28

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