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Gold Science and Technology ›› 2014, Vol. 22 ›› Issue (6): 1-6.doi: 10.11872/j.issn.1005-2518.2014.06.001

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Characteristics of Primary Halo of Qiuling Ore Block in Jinlongshan Gold Belt,Shaanxi Province

LI Qiang1,GAO Jinggang2   

  1. 1.School of Geosciences,Yangtze University,Wuhan   430100,Hubei,China;
    2.College of Earth Science and Resources,Chang’an University,Xi’an   710054,Shaanxi,China
  • Received:2014-06-17 Revised:2014-07-10 Online:2014-12-28 Published:2015-01-14

Abstract:

inlongshan gold belt is a super large carlin-type disseminate gold deposit in Qinling Mountains.Ore belt are divided into the Guloushan,Qiuling,Yaojian and Jinlongshan four ore block from west to east.At present,the primary halo of ore deposit research degree is relatively low,which restricted the deep mine prospecting and forecasting.Based on systematical drilling sample collection of the 118 to 94 exploration line in Qiuling mines,using the correlation analysis and cluster analysis to determine the combination characteristics of gold primary halos.The correlation coefficient of Au and As element is 0.776,which are close paragenesis.The paragenetic relationship of As,Sb and Hg element is stable.It is front anomaly combination of the gold deposit.We research the change law of primary halos of orebodies by primary halo anomalies in different prospecting line and middle section.There are two high backgrounds in 1 000 m and 700 m of the front elements of As,Sb,Hg.The maximum of anomaly intensity of Pb and Zn are in depth of 950 m and 700 m.The largest anomaly scale of Cu,Co and Ni is at 800 m to 700 m depth.The anomaly combination characteristics show that there may have concealed orebody below 700 m between 118 to 70 exploration line.

Key words: carlin-type gold deposit, primary halo, Qiuling ore block, hidden orebody

CLC Number: 

  • P618.51

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