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Prospect Appraisal of the Jinlongshan Style Micrograined Disseminated Gold Deposits in Zhen’an-Xunyang Area, Shaanxi, China

Guo Lihong，Zhu Hongzhou，Li Jing，Yuan Xudong，Li Xinlin， Chen Yan   

  1. Shaanxi Center of Geological Survey,Xi’an710016，China
  • Received:2012-11-25 Online:2013-07-26 Published:2013-07-26

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Abstract:

The authors take the Jinlongshan style micrograined disseminated gold deposit  in Zhen’an-Xunyang in  Shaanxi as example and makes a  through study of the metallogenic regularities of typical deposits. It is concluded that: the ore-bearing strata are mainly the Devonian Gudaoling Group (D2g), Upper Devonian Nanyangshan Group (D3n), Xinghongpu Group (D3x) and Lower Carboniferous Yuanjiagou Group (C1y); the clastic rocks are the main, and the carbonates are minor orebearing rocks; the distribution and development of gold ore bodies are closely related to the faults structures; Au, As, Hg, Sb combination is direct indication of gold deposits and Au and As abnormalities are most closely fitted. Take above ore constrains as regional prognosis factors, use overlay analysis method to delineate metallogenic prediction units and employ characteristic analysis for optimization in the MARS software application, six gold metallogenetic prospective tracts are finally outlined.

Key words: Zhen’an-]Xunyang areas, Jinlongshan type, gold deposits, metallogenetic prospect

CLC Number: 

  • P624.6
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