光谱学与光谱分析 |
|
|
|
|
|
Infrared Spectroscopy and XRD Studies of Coral Fossils |
CHEN Quan-li1, ZHOU Guan-min2, YIN Zuo-wei1 |
1. Gemology Institute, China University of Geosciences, Wuhan 430074, China 2. Guangdong Zhaoqing Supervision Testing Institute of Quality and Metrology, Zhaoqing 526060, China |
|
|
Abstract Coral fossil is an old remain of multicellular animal on the earth, and formed by various geological processes. The structural characteristics and compositions of the coral fossils with different color and radial texture on the surface were studied by infrared absorption spectroscopy and X-ray powder diffraction analyses. The results show that the studied coral fossils mainly are composed of SiO2, and the radial microstructure characterized by the calcareous coral cross-section is preserved. It is formed by metasomatism by SiO2. The infrared absorption spectra of the coral fossil with different color and texture are essentially the same, showing typical infrared absorption spectra of the quartz jade. XRD analysis shows that the main components of the coral fossils with different color and texture are consistent and mainly composed of SiO2 with a trace amount of other minerals and without CaCO3.
|
Received: 2012-02-16
Accepted: 2012-05-15
|
|
Corresponding Authors:
CHEN Quan-li
E-mail: chenquanli_0302@163.com
|
|
[1] WU Wangshi. Acta Palaeontologica Sinica, 1962, 10(3): 326. [2] WANG Jian-hui, ZHANG Ji-yan(王建辉,张继淹). Guangxi Geology(广西地质),2000, 13(1): 7. [3] Schaffer H, Chance R, Silbey R, et al. Journal of Chemistry and Physics, 1991, 94: 4161. [4] Kaczorowska B, Hacura A, Kupka T, et al. Analytical and Bioanalytical Chemistry,2003, 377(6): 1032. [5] Rolandi V, Brajkovic A, Adamo I, et al. Australian Gemmologist,2005, 22(7): 285. [6] CAI Jia,LIU Chun-hua,YU Xiao-yan(蔡 佳,刘春花,余晓艳). Journal of Gems and Gemmology(宝石和宝石学杂志),2008, 10(2): 13. [7] LI Yu-lin, DI Jing-ru(李玉霖,狄敬如). Journal of Gems and Gemmology(宝石和宝石学杂志),2009, 11(2): 15. [8] Farmer V C. Infrared Spectroscopy of Mineral(矿物的红外光谱). Translated by YING Yu-pu, WANG Shou-song, LI Chun-geng(应育浦, 汪寿松, 李春庚,等译). Beijing: Science Press(北京: 科学出版社), 1982. 304. [9] Klein C,Hurlcut C S jr. Manual of Mineralogy, The 22nd Edition. New York: John Wiley and Sons, Inc., 2002.
|
[1] |
LIU Jia, ZHENG Ya-long, WANG Cheng-bo, YIN Zuo-wei*, PAN Shao-kui. Spectra Characterization of Diaspore-Sapphire From Hotan, Xinjiang[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 176-180. |
[2] |
XU Ya-fen1, LIU Xian-yu1*, CHEN Quan-li2, XU Chang3. Study on Mineral Composition and Spectral Characteristics of “Middle East Turquoise”[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2862-2867. |
[3] |
JIA Yu-ge1, YANG Ming-xing1, 2*, YOU Bo-ya1, YU Ke-ye1. Gemological and Spectroscopic Identification Characteristics of Frozen Jelly-Filled Turquoise and Its Raw Material[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2974-2982. |
[4] |
LIU Xian-yu1, YANG Jiu-chang1, 2, TU Cai1, XU Ya-fen1, XU Chang3, CHEN Quan-li2*. Study on Spectral Characteristics of Scheelite From Xuebaoding, Pingwu County, Sichuan Province, China[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(08): 2550-2556. |
[5] |
WEN Hui-lin1, YANG Ming-xing1, 2*, LIU Ling1. Mineralogical and Spectral Characteristics of Alunite From Xiaodonggou Turquoise Deposit, Baihe, Shaanxi[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(04): 1088-1094. |
[6] |
XU Feng-shun1, CHEN Quan-li1*, DING Wei1, WANG Hai-tao2. Study on Fluorescence Spectrometry of Natural and Organic Filling Treated Turquoise[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(09): 2918-2923. |
[7] |
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. |
[8] |
HE Qi-xin, LI Jia-kun, FENG Qi-bo*. Development of a Mid-Infrared Cavity Enhanced Formaldehyde Detection System[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(07): 2077-2081. |
[9] |
LIU Jia-jun1, LUO Jie1*, YUE Su-wei1, XU Ya-lan2. Study on the Mineral Composition and Spectral Characteristics of “Bumblebee Stone”[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(06): 1936-1941. |
[10] |
CHEN Quan-li1, DING Wei1, XU Feng-shun1, LIU Xian-yu2*, WANG Hai-tao3. Infrared Spectral Characteristics and Composition of the “Oily Turquoise” in Zhushan, Hubei[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(04): 1246-1252. |
[11] |
ZHANG Nan, ZHUANG Ling-hua. Spectral Analysis and Structural Identification of Remifentanil Acid[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(07): 2059-2065. |
[12] |
CHEN Quan-li1, WANG Hai-tao2*, LIU Xian-yu3, QIN Chen1, BAO De-qing1. Study on Gemology Characteristics of the Turquoise from Mongolia[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(07): 2164-2169. |
[13] |
KU Ya-lun1, YANG Ming-xing1, 2*, LI Yan1. Spectroscopic Study of Green-Yellow and Green Turquoise Associated Minerals from Zhushan, Hubei Province[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(06): 1815-1820. |
[14] |
ZHANG Huai-lin, WU Tao*, HE Xing-dao. Progress of Measurement of Infrared Absorption Spectroscopy Based on QCL[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(09): 2751-2757. |
[15] |
XIAO Rui-hong1, WANG Li-sheng1, CHEN Wen-jun2, SHI Guang-hai2*. Spectral Characteristics of Natural and Heated Blood-Red Ambers[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(04): 1053-1058. |
|
|
|
|