|
|
|
|
|
|
| Thermal-Infrared Spectroscopy of Garnet Minerals |
| DAI Jing-jing1, ZHAO Long-xian2, WANG Hai-yu2 |
1. MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
2. China University of Geosciences (Beijing), Beijing 100083, China |
|
|
|
|
Abstract Hyperspectral technology is a new non-damaging method for mineral detection and identification. In recent years, short-wave infrared (SWIR) technology with a wavelength of 1.1~2.5 μm had been successfully applied in alteration minerals and correlated ore deposits studies. However, SWIR technology was more suitable for hydrated and hydroxyl-bearing minerals, and was not sensitive for minerals containing SinOk, SO4, CO3, PO4. Then thermal-infrared technology with the wavelength of 3~14 μm could remedy the technical defect, and was more detectable for minerals without hydro and hydroxyl. Garnet is an important neosilicate mineral containing SinOk, divided into many groups according to the chemical components including grossular, andradite, pyrope, almandine, spessartine et al., and garnet is indicative for temperature, pressure and other mineral forming conditions and ore prospecting. Recently, little research on thermal-infrared spectroscopy of garnet minerals has been conducted. In this paper, sixteen garnet minerals with different components and colors were collected, and thermal-infrared spectroscopy of these garnet minerals was firstly studied using Agilent 4300 thermal-infrared spectrometer. What’s more, the content of principal elements including SiO2，MgO，Al2O3，K2O，CaO，Fe2O3 of these garnet minerals was measured using Niton XRF analyzer at the same position, and the relationship between the content of principal elements and absorption wavelength were analyzed. The result indicated that garnet minerals had diagnostic features with twin peaks in the thermal-infrared band region of 10~13 μm, which presented the main absorption at about 11.5 μm and a secondary absorption at about 12 μm. The wavelength at these two absorption was well correlated with the Al2O3 and Fe2O3 content of garnet minerals, which was linear negative correlated with the content of Al2O3, and was linear positive correlated with the content of Fe2O3. The results can help quickly identify the chemical components of garnet minerals and add alteration zoning of skarn ore deposits in the field that indicate ore prospecting. The study started an application of Agilent4300 thermal-infrared spectrometer in the mineral study and gave a good example of thermal-infrared spectroscopy of garnet minerals study, which could provide the fundamental basis for thermal-infrared spectroscopy of other tectosilicates, neosilicates, single-chain silicates, carbonates and sulphates.
|
|
Received: 2020-06-17
Accepted: 2020-10-28
|
|
|
|
[1] Clark R N, Swayze G A. Journal of Geophysical Research, 2003, 108(E12): 5131.
[2] Tappert M C, Rivard B, Giles D, et al. Ore Geology Reviews, 2013，53: 26.
[3] ZHANG Xia, WU Xing, YANG Hang, et al(张 霞, 吴 兴, 杨 杭, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2016, 36(12): 3996.
[4] YANG Zhi-ming, HOU Zeng-qian, YANG Zhu-sen, et al（杨志明, 侯增谦, 杨竹森, 等）. Mineral Deposits（矿床地质）, 2012, 31(4): 699.
[5] Carrino T A, Crósta A P, Toledo C L B, et al. Ore Geology Reviews, 2015, 64: 299.
[6] Neal L C, Wilkinsona J J, Mason P J, et al. Journal of Geochemical Exploration, 2018, 184: 179.
[7] Mauger A J, Ehrig K, Kontonikas-Charos A, et al. Journal of the Geological Society of Australia, 2016, 63(8): 959.
[8] Cudahy T J, Wilson J, Hewson R, et al. Mapping Porphyry-Skarn Alteration at Yerington, Nevada, Using Airborne Hyperspectral VNIR-SWIR-TIR Imaging Data. IEEE International Geoscience & Remote Sensing Symposium，2002. 631.
[9] GAO Xue, DENG Jun, MENG Jian-yin, et al（高 雪, 邓 军, 孟健寅, 等）. Acta Petrologica Sinica（岩石学报）, 2014, 30(9): 2695.
[10] Meinert L D, Dipple G M, Nicolescu S. World Skarn Deposits, Economic Geology 100th Anniversary Volume I: 2005, 299.
[11] YING Li-juan, TANG Ju-xing, WANG Deng-hong, et al（应立娟, 唐菊兴, 王登红, 等）. Acta Geologica Sinica（地质学报）, 2012, 86(11): 1735.
[12] ZHANG Zhi, TANG Ju-xing, CHEN Yu-chuan, et al（张 志, 唐菊兴, 陈毓川, 等). Acta Petrologica et Mineralogica（岩石矿物学杂志）, 2013, 32(3): 305. |
| [1] |
GAO Ran1, 2, CHEN Quan-li1, 3*, REN Yue-nan4, BAO Pei-jin1, HUANG Hui-zhen1. Study on the Gemmological and Spectral Characteristics of Emeralds From Kagem, Zambia[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(10): 3186-3192. |
| [2] |
ZHAO An-di1, 3, CHEN Quan-li1, 2, 3*, ZHENG Xiao-hua2, LI Xuan1, 3, WU Yan-han1, 3, BAO Pei-jin1, 3. Study on Spectroscopic Characteristics of Turquoise Treated With
Phosphate and Porcelain[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(04): 1192-1198. |
| [3] |
WANG Ren-jie1, 2, FENG Peng1*, YANG Xing3, AN Le3, HUANG Pan1, LUO Yan1, HE Peng1, TANG Bin1, 2*. A Denoising Algorithm for Ultraviolet-Visible Spectrum Based on
CEEMDAN and Dual-Tree Complex Wavelet Transform[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(03): 976-983. |
| [4] |
YE Da-wei1, 2, DING Fang1*, LI Ke-dong1, 2, CHEN Xia-hua1, 2, LUO Yu1, 2, ZHANG Qing1, 2, MENG Ling-yi1, 2, LUO Guang-nan1, 2. Study on Time Delay of Impurity Line Emissions Between in the Edge and Core Plasmas in EAST Tokamak[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3507-3511. |
| [5] |
LÜ Yang1, PEI Jing-cheng1*, ZHANG Yu-yang2. Chemical Composition and Spectra Characteristics of Hydrothermal Synthetic Sapphire[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3546-3551. |
| [6] |
HU Xin-yu1, 2, XU Zhang-hua1, 2, 3, 5, 6*, HUANG Xu-ying1, 2, 8, ZHANG Yi-wei1, 2, CHEN Qiu-xia7, WANG Lin1, 2, LIU Hui4, LIU Zhi-cai1, 2. Relationship Between Chlorophyll and Leaf Spectral Characteristics and Their Changes Under the Stress of Phyllostachys Praecox[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(09): 2726-2739. |
| [7] |
DAI Lu-lu1, YANG Ming-xing1, 2*, WEN Hui-lin1. Study on Chemical Compositions and Origin Discriminations of Hetian Yu From Maxianshan, Gansu Province[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(05): 1451-1458. |
| [8] |
LÜ Yang, PEI Jing-cheng*, GAO Ya-ting, CHEN Bo-yu. Chemical Constituents and Spectra Characterization of Gem-Grade
Triplite[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(04): 1204-1208. |
| [9] |
YAO Na1, CHEN Zi-fan2, ZHAO Xiong2, WEI Shu-ya1*. Scientific Research on Warring States Ink Unearthed From Jiangling Jiudian Tomb in Hubei Province[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(11): 3418-3423. |
| [10] |
HUANG Li-ying, CHEN Quan-li*, GAO Xin-xin, DU Yang, XU Feng-shun. Study on Composition and Spectral Characteristics of Turquoise Treated by “Porcelain-Added”[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(07): 2245-2250. |
| [11] |
KU Ya-lun1, YANG Ming-xing1, 2*, LIU Jia1, XU Xing1. Spectral Study on Natural Seleniumin Turquoise From Shiyan, Hubei Province[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(07): 2251-2257. |
| [12] |
LIU Ting-yue1, DAI Jing-jing2*, TIAN Shu-fang1. A Neural Network Recognition Method for Garnets Subclass Based on Hyper Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(06): 1758-1763. |
| [13] |
GUI Xiang-yang1,2, LIU Chen3, XU Ji-hong1, DUAN Fang-lei1, FANG Shu-wei1, LI Fei-yue1*. Two-Dimensional Perturbation Correlation Infrared Spectroscopy Analysis of Animal Manure Biochar[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(11): 3606-3612. |
| [14] |
KU Ya-lun1, YANG Ming-xing1, 2*, LIU Jia1. Spectroscopic Characteristics of Turquoise With Reddish-Brown Stripes From Shiyan, Hubei Province[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(11): 3639-3643. |
| [15] |
ZHANG Hao1,2, GAO Qing1, HAN Xiang-xiang1, RUAN Gao-yang1, LIU Xiu-yu1. Mechanism Analysis of Formaldehyde Degradation by Hot Braised Slag Modified Activated Carbon Based on XRF and XRD[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(05): 1447-1451. |
|
|
|
|
