Journal of Jilin University(Earth Science Edition) ›› 2017, Vol. 47 ›› Issue (6): 1705-1716.doi: 10.13278/j.cnki.jjuese.201706110

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Ore-Controlling Structures and Deep Metallogenic Prediction of Aerhada Pb-Zn Deposit in Inner Mongolia

Ruan Dawei1, Li Shunda2, Bi Yaqiang1, Liu Xingyu1, Chen Xuhu1, Wang Xingyuan1, Wang Keyong2   

  1. 1. XilinGol Shanjin Aerhada Mining Co Ltd, XilinGol 026300, Inner Mongolia, China;
    2. College of Earth Sciences, Jilin University, Changchun 130061, China
  • Received:2017-03-25 Online:2017-11-26 Published:2017-11-26
  • Supported by:
    Supported by Geological Survey Projects of the China Geological Survey (1212011120156)

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Abstract: Aerhada Pb-Zn deposit is one representative of those in Erlianhot-Dongwuqi polymetallic metallogenic belt. The orebodies occur mainly as veins and lenticular in shape in Angeryinwula formation,and are controlled by the NW striking faults. The ore-controlling faults underwent multiple tectonic activities, formed different mineral assemblages corresponding to the ore forming stages of (Ⅰ) quartz-arsenopyrite-pyrite stage,(Ⅱ) poor sulfide-quartz stage,(Ⅲ) polymetallic sulfide stage, and (Ⅳ) poor galena-fluorite-calcite stage. The ore-controlling faults are characterized essentially by the left slipping normal faults. The positions vertically along the steep trend and horizontally along the westward faults are the favorable place for lead and zinc ore body. The thickness of the alteration zone,the thickness of orebody and its high grade position are all agreed with the structural changing position of the fractures. Both the orebody and the alteration zone have a tendency to SW lateral prostration. According to this ore enrichment pattern, we suggest a further exploration in deep level of the ore mine. Based on a detailed geological investigation and the mineralization enrichment rule above,we evaluated and predicted the favorable locations on both sides and deep level of ore vein 1 in Aerhada deposit by using numerical simulation techniques; and circled six target areas.

Key words: numerical simulation, structural ore-control, metallogenic prediction, Aerhada Pb-Zn deposit, Inner Mongolia

CLC Number: 

  • P612
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