J4 ›› 2011, Vol. 41 ›› Issue (6): 1667-1675.

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Distribution of Uranium and Molybdenum Deposits and Their Relations with Medium Massifs in Central Asian Orogenic Zone

SHAO Ji-an1, ZHANG Lü-qiao2, MU Bao-lei1   

  1. 1.School of Earth and Space Sciences, Peking University, Beijing100871, China；
    2.Institute of Geology and Mineral Resources,Inner Mongolia Bureau, Huhhot010020, China
  • Received:2011-08-06 Online:2011-11-26 Published:2011-11-26
  • About author:邵济安(1940-)|女|浙江宁波人|教授|主要从事构造地质学方面研究|E-mail:wangcc@mail.tsinghua.edu.cn

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Abstract:

Based upon recent research achievements on polymetallic ore deposits in the eastern section of Central Asian orogenic belt, the authors selectively studied uranium and molybdenum deposits, to explore diversity of the metallogenic sources and the various stages of mineralization in connection with the geochemical behaviors of uranium and molybdenum elements. Because there are many medium massifs, the relationship between mineralization and the medium massifs is also discussed from view of tectonics. These medium massifs have experienced cracking of continental margin, displacement, and collision orogenesis of plates. The ore-forming material was reformed many times and be concentrated. It is indicated that the Indosinian mineralization in the north margin of North China craton of Indo-Chinese epoch and in the Hinggan-Mongolian orogenic belt is related to the extension in the settings of underplating.

Key words: Central Asian orogenic zone, uranium and molybdenum deposit, element geochemistry, medium massif, Indosinian epoch

CLC Number: 

  • P618.2
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