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Geoscience ›› 2004, Vol. 18 ›› Issue (2): 193-196.

• Engineering Geology and Environmental Geology • Previous Articles     Next Articles

METALLOGENIC EPOCH OF HULUNXIBAI GOLD DEPOSIT IN ALASHAN AREA.INNER MONGOLIA  AUTONOMOUS REGION

LI Jun-jian1,2,LUO Hui2,ZHOU Xue-wu1,ZHOU Hong-ying1,2,SUN zheng-pin3,WANG shou-guang3   

  1. 1 China University of Geoscience, Beijing 10083,China 2 Tianjin Institute of Geology and Mineral Resources, Tianjin  300170,China;3 Inner Mongolia of Geological Survey ,Hohhot ,Inner Mongolia 010020,China

  • Received:2004-01-03 Revised:2004-03-14 Online:2004-02-20 Published:2004-02-20

Abstract:

In Alashan area,Inner Mongolia Autonomous Region,the Hulunxibai gold deposit locates in the inner and outer contact belts of Hulunxibai granite.The ore boods are controlled by the zones of fracturs,and consist of altered disseminated ore bodies and Au-bearing quartz vein lens.By single zircon U-Pb and quartz 40Ar/39Ar methods,the ages of Au-bearing quanz vein were directly detected.The results shown that themetallogenic epoch of Hulunxibai gold deposit is 319.5 Ma to 348.84 Ma,that is middle Variscan period.

Key words: metallogenic age, Hulunxibai gold deposit, Alashan area of Inner Mongolia Autonomous Region

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