Journal of Guangxi Normal University(Natural Science Edition) ›› 2012, Vol. 30 ›› Issue (1): 115-124.

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Ore-Forming Model of Super-large Vermiculite Ore Deposits in Xinjiang,China

ZHOU Ke-fa1,2, SUN Bao-sheng3, WANG Jin-lin2, ZHANG Nan-nan2, ZHANG Hai-bo2, WANG Wei2, LIAO Shi-bin2   

  1. 1.Key Laboratory of Orogen and Crust Evolution,Peking University,Beijing 100871,China;
    2.Xinjiang ResearchCenter for Mineral Resources,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,UrumqiXinjiang 830011,China;
    3.College of Geology and Exploration Engineering,Xinjiang University,Urumqi Xinjiang 830046,China
  • Received:2011-11-30 Online:2012-01-20 Published:2018-12-03

Abstract: The Yuli vermiculite deposit is the largest vermiculite deposit in China and also one of the Super-large vermiculite deposits in theworld.Through comparative studies on similar deposits in other areas of the word,other Super-Large vermiculite deposits are characterized by existence of associated peralkaline rocks,e.g.ijolite,urtite and nepheline syenite etc.,indicating that vermiculite mineralization are linked to peralkaline magmatism.However,the Yuli vermiculite deposit has different rock type and mineral series.Because ofabsence of such kind of peralkaline rocks,the Yuli vermiculite deposit is suggested to have a close relation with alkali-rich ultramafic rocks and carbonatites.Based on detailed studies on regional geological background,rock,petrochemistry and geochemistry,a petrogenic and metallogenic model of this deposit is established.The metallogenetic process is followed by mantle metasomatism,rifting,magmatic activity,hydrothermal alteration and supergene weathering.This model has both profound theoretical and practical significance to survey new vermiculite deposits around the Tarim Basin.

Key words: Yuli,Xinjiang,China, super-large vermiculite deposits, ore-forming model

CLC Number: 

  • P571
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