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Geochemical and Biological Profiles of a Quartz Stone in the Qaidam Mars Analog Using LIBS: Implications for the Search for Biosignatures on Mars

文献类型：期刊论文

作者Shen, Jianxun2; Liu, Li1,2; Chen, Yan2; Sun, Yu2; Lin, Wei2
刊名ACS EARTH AND SPACE CHEMISTRY
出版日期2022-10-17
页码14
关键词LIBS Raman astrobiology Mars analog biosignatures multivariate analysis
ISSN号2472-3452
DOI10.1021/acsearthspacechem.2c00129
英文摘要Biosignature detection is one of the most important goals in Mars exploration missions. Since the Mars Science Laboratory (MSL) mission, the laser-induced breakdown spectrometer (LIBS) has become an essential payload due to its convenience and versatility in profiling elemental chemistry, and the most recent rovers Perseverance and Zhurong both have one onboard for the chemical characterization at their landing sites on Mars. Here, we attempt to study whether and to what extent using LIBS spectral data is possible to differentiate biotic and abiotic chemical signals. A clastic quartz stone collected from a Mars analog setting, the western Qaidam Basin of western China, was selected for LIBS analysis. Raman spectroscopy was used as a detector of organic signals to support the presence of potential hypolithic communities and the dearth of epilithic biomass on the rock. This study constructs a pseudo-three-dimensional geochemical profile of the Qaidam analog quartz stone, a representative of rocks with relatively homogeneous mineral compositions and limited bulk nonuniformity that have previously been found on Mars (Smith and Bandfield, J. Geophys. Res.: Planets, 2012 and Bandfield et al., J. Geophys. Res.: Planets, 2004), along four vertical continual lines. A total of 344 LIBS spectra were acquired, which were further statistically analyzed using principal component analysis (PCA). Our results indicate that, with a sufficient sample size, the unsupervised PCA can partially differentiate biotic and abiotic signals purely based on LIBS spectral measurements. This finding is significant since it indicates that multivariate analysis of LIBS data can be useful for biosignatures filtering in life exploration on Mars.
WOS关键词INDUCED BREAKDOWN SPECTROSCOPY ; RAMAN-SPECTROSCOPY ; UTOPIA-PLANITIA ; IN-SITU ; CLASSIFICATION ; BASIN ; QUANTIFICATION ; MICROORGANISMS ; SAMPLES ; ROCKS
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB41010403] ; National Natural Science Foundation of China (NSFC)[41621004] ; Key Research Program of the Chinese Academy of Sciences[ZDBS-SSW-TLC001] ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences[IGGCAS-201904] ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences[IGGCAS-202102]
WOS研究方向Chemistry ; Geochemistry & Geophysics
语种英语
WOS记录号WOS:000874757600001
出版者AMER CHEMICAL SOC
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Research Programs of the Institute of Geology and Geophysics, Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/107766]  
专题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Lin, Wei
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Shen, Jianxun,Liu, Li,Chen, Yan,et al. Geochemical and Biological Profiles of a Quartz Stone in the Qaidam Mars Analog Using LIBS: Implications for the Search for Biosignatures on Mars[J]. ACS EARTH AND SPACE CHEMISTRY,2022:14.
APA Shen, Jianxun,Liu, Li,Chen, Yan,Sun, Yu,&Lin, Wei.(2022).Geochemical and Biological Profiles of a Quartz Stone in the Qaidam Mars Analog Using LIBS: Implications for the Search for Biosignatures on Mars.ACS EARTH AND SPACE CHEMISTRY,14.
MLA Shen, Jianxun,et al."Geochemical and Biological Profiles of a Quartz Stone in the Qaidam Mars Analog Using LIBS: Implications for the Search for Biosignatures on Mars".ACS EARTH AND SPACE CHEMISTRY (2022):14.

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来源：地质与地球物理研究所

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