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学科主题: Spectroscopy
题名: Vibrational spectroscopic characterization of growth bands in Porites coral from South China Sea
作者: [Song, Yinxian ; Yu, Kefu ; Shi, Qi] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China ; [Song, Yinxian ; Ayoko, Godwin A. ; Frost, Ray L.] Queensland Univ Technol, Fac Sci & Engn, Sch Chem Phys & Mech Engn, Discipline Nanotechnol & Mol Sci, Brisbane, Qld 4001, Australia ; [Song, Yinxian ; Yu, Kefu ; Feng, Yuexing ; Zhao, Jianxin] Univ Queensland, Sch Earth Sci, Radiogen Isotope Facil, Brisbane, Qld 4072, Australia
通讯作者: songyinxian@gmail.com
关键词: Raman ; Infrared reflectance spectroscopy ; Porties coral
刊名: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
发表日期: 2013
卷: 112, 页:95-100
部门归属: 海洋地质
资助者: This work was funded by the National Key Basic Research Program of China (Nos. 2013CB956102 and 2010CB950101), the "Strategic Priority Research Program" of the Chinese Academy of Sciences (Grant No. XDA05080301), the National Natural Science Foundation of China (Nos. 40830852, 41025007 and 41203074), and an Australian Research Councile discovery project (DP0773081).
摘要: A series of samples from different growth bands of Porites coral skeleton were studied using Raman, infrared reflectance methods. The Raman spectra proved that skeleton samples from different growth bands have the same mineral phase as aragonite, but a band at 133 cm(-1) for the top layer shows a transition from similar to 120 cm(-1) for vaterite to similar to 141 cm(-1) for aragonite. It is inferred that the vaterite should be the precursor of aragonite of coral skeleton. The positional shift in the infrared spectra of the skeleton samples from growth bands correlate significantly to their minor elements (Li, Mg, Sr, Mn, Fe and U) contents. Mg, Sr and U especially have significant negative correlations with the positions of the antisymmetric stretching band v(3) at similar to 4469 cm(-1). And Li shows a high negative correlation with v(2) band (similar to 855 cm(-1)), while Sr and Mn show similar negative correlation with v(4) band (similar to 712 cm(-1)). And Mn also shows a negative correlation with v(1) band (similar to 1082 cm(-1)). A significantly negative correlation is observed for U with v(1) + v(4) band (similar to 1786 cm(-1)). However, Fe shows positive correlation with v(1), v(2), v(3), v(4) and v(7) + v(4) bands shifts, especially a significant correlation with v(1) band (similar to 1082 cm(-1)). New insights into the characteristics of coral at different growth bands of skeleton are given in present work. (C) 2013 Elsevier B.V. All rights reserved.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000321404300013
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/11123
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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[Song, Yinxian; Yu, Kefu; Shi, Qi] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Song, Yinxian; Ayoko, Godwin A.; Frost, Ray L.] Queensland Univ Technol, Fac Sci & Engn, Sch Chem Phys & Mech Engn, Discipline Nanotechnol & Mol Sci, Brisbane, Qld 4001, Australia; [Song, Yinxian; Yu, Kefu; Feng, Yuexing; Zhao, Jianxin] Univ Queensland, Sch Earth Sci, Radiogen Isotope Facil, Brisbane, Qld 4072, Australia.Vibrational spectroscopic characterization of growth bands in Porites coral from South China Sea,SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2013,112():95-100
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