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内蒙古敖汉旗毛头山金矿床地质特征、成矿规律与找矿标志

Geological characteristics,metallogenic regularities,and prospecting indicators of Maotoushan Gold Deposit in Aohan Banner,Inner Mongolia

  • 摘要: 毛头山金矿床位于内蒙古自治区赤峰市东部,大地构造位置处于华北克拉通北缘,区域上广泛发育金矿床。通过系统阐述毛头山金矿床地质特征,认为矿体赋存在下二叠统酒局子组中,含矿岩石为变质砂岩、红柱石板岩及碳质板岩,金赋存在热液叠加石英细脉、网脉中,与地层产状一致,为沉积-动力变质金矿床。总结了毛头山金矿床的成矿规律及控矿因素,并提出找矿标志,为华北克拉通北缘同类金矿床的找矿勘查工作提供理论参考。

     

    Abstract: Maotoushan Gold Deposit is located in the eastern part of Chifeng City,Inner Mongolia Autonomous Region.It is widely distributed in the gold deposits of the northern margin of the North China Craton.This paper systematically expounds the geological characteristics of Maotoushan Gold Deposit,suggesting that the ore bodies are located in the Lower Permian Jiujuzi Formation,and the mineralized rocks consist of metamorphic sandstone,red chert,and carbonaceous slate.Gold is present in the form of hydrothermal superimposed quartz veins and veinlets,which are consistent with the attitude of the strata,indicating a sedimentary-dynamic metamorphic gold deposit.The metallogenic regularities and ore-controlling factors of Maotoushan Gold Deposit are summarized,and prospecting indicators are proposed,providing theoretical references for the exploration and prospecting of similar gold deposits along the northern margin of the North China Craton.

     

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