J4 ›› 2011, Vol. 41 ›› Issue (4): 1048-1054.

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Analysis of Structural Ore-Controlling Rules and Mechanism of the Sidaogou Gold Deposit in Dandong City|Liaoning Province

WANG Ke-yong1| WAN Duo1| LIU Zheng-hong1| SUN Feng-yue1| BIAN Hong-ye2|ZHANG Xiao-dong3| HUANG Jun-peng3   

  1. 1.College of Earth Sciences|Jilin University |Changchun130061|China;
    2.No.1 Brigade|Division of Gold|People’s Armed Police Force| Harbin150086 |China;
    3.Sidaogou Gold Deposit in Dandong City,Liaoning Province| |Dandong118000| Liaoning, China
  • Received:2010-10-05 Online:2011-07-26 Published:2011-07-26

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Abstract:

Located in Dandong City，Liaoning Province，Sidaogou gold deposit is of medium-temperature hydrothermal type, mainly occurs in the meta-sandstone strata of Liaohe Group of Early Proterozoic era，and is genetically related to the intermediate-felsic magmatic activities of the Yanshan episode. The spatial distribution of ore-bodies was jointly controlled by the NE strike F3 fault and the Shujing anticline developed in the hanging wall of F3. The structural ore-controlling regularities are as follows: 1)The ore-bodies occur mainly in the interbedded brecciation zones developed in the Shujing anticline and spatially display in belts; 2)The major ore-bodies display in a broom-shaped way from east to west; and 3)The ore-bodies in each ore belt mainly distribute at the western side of the hinge zone of Shujing anticline and clearly flank dip toward SE with the flank dipping angle between 30° to 35°. Based on this comprehensive study, we propose that the regular spatial occurrences of the ore-bodies in the mining district are closely related to the dextrorotation-oblique thrust motion of the NE faults. All these structural ore-controlling rules have both great theoretical and practical significances to the subsequent exploration work in the mining district.

Key words: Sidaogou gold deposit, structural ore-controlling rules, mechanism of spatial location of ore-body, Dandong County in Liaoning Province, gold deposit

CLC Number: 

  • P618.51
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