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Gold Science and Technology ›› 2017, Vol. 25 ›› Issue (4): 1-9.doi: 10.11872/j.issn.1005-2518.2017.04.001

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Prospecting Effect of Stream Sediment Survey in Zhongzhai-Shilipu Area of West Qinling Mountains

CHEN Caihua，SUN Bing，CHEN Ji，CHEN Lizi   

  1. No.5 Gold Geological Party of CAPF，Xi’an   710100，Shaanxi，China
  • Received:2017-02-22 Revised:2017-04-22 Online:2017-08-30 Published:2017-10-30

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Abstract:

Zhongzhai-Shilipu area is located in the west of the Zhaishang super-large gold mine area，and its metallogenic conditions are favorable.The 1∶50 000 stream sediment survey is carried out in this area.The geochemical characteristics of 17 elements in this area are studied，which showed that the stratigraphic units of Zhongzhai-Shilipu area are the favorable geochemical blocks.Using the method of mathematical statistics，the relative abundance，relative coefficient of variation and enrichment degree of ore-forming elements were analyzed，and the favorable parts of polymetallic mineralization were pointed out.The metallogenic potential of each stratigraphic unit was evaluated by calculating prospecting potential index（k× Cv） of ore-forming elements in different strata.The correlative character and spatial distribution of elements are studied，the spatial distribution characteristics and combination relations are discussed by R cluster analysis of 17 elements from 3 904 samples in the working area.According to the abnormal geochemical characteristics，strata and fault structure，four mineralization prospects are selected.On the basis of carrying out abnormal verification and deploying the project，three  Au-Sb ore occurrences were found，and achieved good prospecting effect.

Key words: stream sediment survey, element correlation characteristics, anomalous element combination, metallogenic potential, prospecting effect, Zhongzhai-Shilipu area, west Qinling mountains

CLC Number: 

  • P618.51 

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