紫金山金铜矿明矾石的拉曼光谱特征

doi:10.3964/j.issn.1000-0593(2014)02-0415-06

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Abstract The Zijinshan gold-copper deposit is the first one of high sulfidation epithermal hydrothermal deposits. The gold bodies up, and the copper bodies down. The gold bodies mainly occur above the ground water table associated with strong silicification, and the copper bodies mainly occur below the ground water table associated with alunitization. The alunite of the Zijinshan gold-copper deposit has four types of occurrence status, that is the altered rock type, the intergrowth-with-Cu-sulphide type, the vein type and the powder type. Different types of the alunite are of different Raman spectra characteristics and fluorescence scattering background. Laser Raman spectra of inclusions in the alunite show that: (1) The characteristics of the Laser Raman spectra of the alunite are of characteristic spectral bands of alunite, just fluorescent scattering weaken gradually from the altered rock type, the intergrowth-with-Cu-sulphide type to the vein type; the alunite in the Powder type has different bands of the Laser Raman spectra relative to the former three types, the intensity of each band is weaker, and it’s fluorescent scattering intensity is strongger. (2) The bands in 100～700 cm^-1 of the Laser Raman spectra can be used as "fingerprint" bands indicating the condition of the cation replacement in the molecular structure of alunite. The intensities at 161 and 234 peak change obviously in the bands of the alunite in the altered rock type, which indicating a wide replacement between K and Na; the intensities at 381 and 484 peak in the bands of the alunite in the intergrowth-with-Cu-sulphide type change significantly, indicating Al can be replaced with Cu, Ga, etc.; the larger and stable intensities of the alunite in the vein type in the bands at the peaks about 161, 234, 484, 508, etc. indicate that there are less chances with the replacement between K and Na, Al and Si; fluorescence scatorescent scattering is very strong and the intensity of each band is weaker in the bands of the alunite in the powder type, which indicate that the alunite formed in the underground water condition. (3) The laser Raman spectra of the alunite can be used together with it’s infrared spectra, and provide the characteristics of complete vibration spectra of the alunite and the structure information with the mineral research. Based on the mineralography, the petrography, the ore deposit geology, the geochemistry of mineral deposits, the regional geological features, the Laser Raman spectra of the alunite (Combined with fluorescence scattering background) can further the evolution process for the Zijinshan gold-copper deposit as a typical high sulfidation epithermal hydrothermal deposit.

Key words：Zijinshan;Gold-copper deposit;Alunite;Laser Raman spectra;Fluorescent scattering

Received: 2013-08-23 Accepted: 2013-12-05

ZTFLH:

P619.21+2

Corresponding Authors: WANG Cui-zhi E-mail: Wcuizhi@163.com;826594853@qq.com

Cite this article:

WANG Cui-zhi,XIONG Xin. Raman Spectra Characteristics of Alunite in the Zijinshan Gold-Copper Deposit [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(02): 415-420.

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https://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593(2014)02-0415-06 OR https://www.gpxygpfx.com/EN/Y2014/V34/I02/415

[1] ZHANG De-quan, LI Da-xin, ZHAO Yi-ming，et al(张德全，李大新，赵一鸣, 等). Geological Review(地质论评)，1991，37(6): 481.
[2] ZHANG De-quan, FENG Cheng-you, LI Da-xin, et al(张德全，丰成友，李大新，等). Acta Geoscientica Sinica(地球学报)，2005, 26(2): 127.
[3] HUANG Ren-sheng(黄仁生). Journal of Geomechanics(地质力学学报)，2008, 14(1): 74.
[4] QIU Xiao-ping, LAN Yue-zhang, LIU Yu(邱小平，蓝岳彰，刘羽). Acta Geoscientica Sinica (地球学报), 2010, 31(4): 209.
[5] ZHONG Jun, CHEN Yan-jing, CHEN Jing, et al(钟军，陈衍景，陈静，等). Acta Petrologica Sinia (岩石学报), 2011, 27(5): 1410.
[6] CHEN Jing, CHEN Yan-jing, ZHONG Jun, et al(陈静，陈衍景，钟军，等). Acta Petrologica Sinia (岩石学报), 2011, 27(5): 1425.
[7] LIAO Li-bing, WANG Li-juan, YIN Jing-wu, et al(廖立兵，王丽娟，尹京武，等). Mineral Material-Modern Testing Technology(矿物学材料—现代测试技术). Beijing: Chemical Industry Press(北京：化学工业出版社), 2012. 125.
[8] ZHU Ming-hua，HU Ping(朱明华，胡平). Instrumental Analysis(仪器分析). Beijing: Higher Education Press(北京：高等教育出版社)，2008. 325.
[9] WANG Cui-zhi，ZHANG Wen-yuan(王翠芝，张文媛). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2013，33(7)：1969.
[10] WANG Cui-zhi，QUE Hong-hua(王翠芝，阙洪华). Acta Mineralogica Sinica(矿物学报)，2013，33(3)：521.
[11] WU Yan-shuang，WANG Li-jin，ZHOU Ke-fa，et al(吴艳爽，汪立今，周可法，等). Rock and Mineral Analysis(岩矿测试)，2012，31(3)：507.
[12] Maubec N，Lahfid A，Lerouge C，et al. Spectrochimica Acta Part A：Molecular and Biomolecular Spectroscopy，2012，96：925.
[13] WANG Cui-zhi，QI Jin-ping，LAN Rong-gui(王翠芝，祁进平，兰荣贵). China Mining Magazine(中国矿业)，2013，22(3)：76.
[14] Charles G C, Robert O R, Barnaby W R, et al. Chemical Geology, 2005, 215:317.
[15] Deyell C L, Dipple G M. Chemical Geology, 2005, 215: 219.
[16] WANG Fu-sheng，LAN Xiang，LIANG Xiang-qi(王福生，兰翔，梁祥济). Zhejiang Geology(浙江地质)，1997，13(1)：55.
[17] TANG Min-hui, ZHOU Tao-fa, FAN Yu, et al(唐敏惠，周涛发，范裕，等). Jouranl of Hefei University of Technology (合肥工业大学·自然科学版), 2011, 34(9): 1402.