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Gold Science and Technology ›› 2017, Vol. 25 ›› Issue (3): 54-60.doi: 10.11872/j.issn.1005-2518.2017.03.054

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Short Wave Infrared Spectral Characteristics of Alteration Minerals of Gold Deposit in the Northern Sea of Sanshandao and Its Implications for Deep Prospecting

SONG Yingxin   

  1. Shandong Geological Sciences Institute,Jinan    250013,Shandong,China
  • Received:2017-03-17 Revised:2017-05-04 Online:2017-06-30 Published:2017-09-11

Abstract:

New superlarge gold deposit is found in the northern sea of Sanshandao,Shandong Province.The hydrothermal alteration minerals of orebody mainly include muscovite,lepidolite,ilite,spodumene,epidote,kaolinite,hornblende,dolomite,calcite and smectite,as identified by short wave infrared measurement.The muscovite has close relationship with gold mineralization.Gold grade has the positive correlation with peak intensity,contrast of intensity,symmetry of peak in short wave infrared spectrum.Aluminum-poor muscovite have the indicate significance of heat center.Aluminum-poor muscovite distribute in the deep drill.With the increase of depth,there have still stable trend of aluminum-poor muscovite distribution.This shows that the depth of metallogenic heat source is deeper,indicating that the depth of gold deposit has great potential for prospecting.

Key words: short wave infrared spectroscopy, gold deposit in the northern sea of Sanshandao, aluminum-poor muscovite, Al-OH absorption peak of muscovite, metallogemic heat source, deep prospecting, spectral characteristic

CLC Number: 

  • P618.51 

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