Volume 7 Issue 3
Sep.  2001
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CHEN Xuan-hua, MA Tian-lin, SUN Li-qian, et al., 2001. THE CHARACTERISTICS OF ROCK MAGNETIC FABRIC AND ITS RELATIONSHIP TO GOLD MINERALIZATION IN SAWAYAERDUN GOLD DEPOSIT, XINJIANG. Journal of Geomechanics, 7 (3): 208-216.
Citation: CHEN Xuan-hua, MA Tian-lin, SUN Li-qian, et al., 2001. THE CHARACTERISTICS OF ROCK MAGNETIC FABRIC AND ITS RELATIONSHIP TO GOLD MINERALIZATION IN SAWAYAERDUN GOLD DEPOSIT, XINJIANG. Journal of Geomechanics, 7 (3): 208-216.

THE CHARACTERISTICS OF ROCK MAGNETIC FABRIC AND ITS RELATIONSHIP TO GOLD MINERALIZATION IN SAWAYAERDUN GOLD DEPOSIT, XINJIANG

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  • Received: 2001-05-10
  • Published:
  • The magnetic fabric characteristics and its relationship to the gold mineralization in Sawayaerdun gold deposit,Xinjiang,China,are reported here. The data given here show compression in NW-SE direction and sinistral shearing vertical to this direction. There are contraction-type and flaser-type strains occurring alternatively in NW-SE,where flaser-type strains are much more developed. Gold-bearing veins occur in en echelon,which are products of sinistral shearing. The ore vein Ⅳ,the most important gold-bearing vein,occurs in the weakly strained area close to the most strongly strained belt. Gold mineralization exists in weakly deformed rocks closely related to quartz vein,showing post-tectonic filling and crystalling of the gold -bearing fluid. Combined with the microtexture analysis of rocks in this area,Sawayaerdun gold deposit is proposed to be a shearing zone-type gold deposit,where gold bearing fluid coming from rocks in this area through pressure solution during ductile deformation,filled fractures due to tectonic compresso-shearing.

     

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