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Thermally induced phase transition of troilite during Micro-Raman spectroscopy analysis

文献类型：期刊论文

作者Li, Xiaoguang3; Chen, Yi3; Tang, Xu4; Gu, Lixin4; Yuan, Jiangyan3; Su, Wen3; Tian, Hengci5; Luo, Huiqian6; Cai, Shuhui3; Komarneni, Sridhar1,2
刊名ICARUS
出版日期2023-01-15
卷号390页码:10
ISSN号0019-1035
关键词Troilite Raman spectroscopy Laser irradiation Magnetite Nanophase metallic iron
DOI10.1016/j.icarus.2022.115299
英文摘要Troilite is one type of FeS polymorph formed under reducing environmental conditions. However, its phase transition by laser heating during Raman analysis has not been investigated in detail. This study focuses on identifying changes to Raman spectra of troilite resulted by laser heating during Raman analysis so as to determine optimized analytical conditions for characterizing iron sulfides. We comfirm that iron sulfides exposed in air are easily transformed to magnetite and hematite after a high-power laser (> 200 mW/mu m(2) for pyrite and > 14 mW/mu m(2) for troilite) irradiation. Troilite crystal structure is also broken easily by laser (>12 mW/mu m(2)) under the vacuum conditions due to the volatilization of S and Fe, possibly inducing the formation of nanophase metallic iron. Therefore, iron sulfides are expected to be sensitive to laser heating. Here, we have confirmed the laser heating effect through a set of heating experiments from ambient temperature to 500 degrees C with various laser powers. Our results suggest that Raman analysis for troilite should be performed with a low laser power of <1.50 mW (12 mW/mu m(2)) both in air and vacuum environments. The heating effects on troilite phase transition can be responsible for the formation of magnetite, hematite, and nanophase metallic iron in lunar samples. The thermally induced phase transition of troilite observed in this study is important because it undoubtedly modifies both the redox state and magnetic property of extraterrestrial samples and would trigger a misleading interpretation of planetary evolution.
WOS关键词COMET 81P/WILD 2 ; MAGNETIC-PROPERTIES ; SHOCK METAMORPHISM ; OPAQUE MINERALS ; IRON SULFIDES ; LUNAR ; METAL ; FE ; IDENTIFICATION ; HEMATITE
资助项目Key Research Program of the Chinese Academy of Sciences[ZDBS-SSW-JSC007-15] ; pre-research project on Civil Aerospace Technologies of China National Space Administration[D020203] ; Key Research Program[IGGCAS-202101] ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences[E0518504]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号WOS:000872598000001
资助机构Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; Key Research Program ; Key Research Program ; Key Research Program ; Key Research Program ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; Key Research Program ; Key Research Program ; Key Research Program ; Key Research Program ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; Key Research Program ; Key Research Program ; Key Research Program ; Key Research Program ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; pre-research project on Civil Aerospace Technologies of China National Space Administration ; Key Research Program ; Key Research Program ; Key Research Program ; Key Research Program ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Experimental Technology Innovation Fund of the Institute of Geology and Geophysics, Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/107747]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Chen, Yi
作者单位1.Penn State Univ, Dept Ecosyst Sci & Management, University Pk, PA 16802 USA
2.Penn State Univ, Mat Res Inst, Energy & Environm Lab 204, University Pk, PA 16802 USA
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Electron Microscope Lab, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
6.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Li, Xiaoguang,Chen, Yi,Tang, Xu,et al. Thermally induced phase transition of troilite during Micro-Raman spectroscopy analysis[J]. ICARUS,2023,390:10.
APA Li, Xiaoguang.,Chen, Yi.,Tang, Xu.,Gu, Lixin.,Yuan, Jiangyan.,...&Komarneni, Sridhar.(2023).Thermally induced phase transition of troilite during Micro-Raman spectroscopy analysis.ICARUS,390,10.
MLA Li, Xiaoguang,et al."Thermally induced phase transition of troilite during Micro-Raman spectroscopy analysis".ICARUS 390(2023):10.

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来源：地质与地球物理研究所

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