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Traces of Ancient Life in Oceanic Basalt Preserved as Iron-Mineralized Ultrastructures: Implications for Detecting Extraterrestrial Biosignatures

文献类型：期刊论文

作者Qu, Yuangao8; Yin, Zongjun7; Kustatscher, Evelyn4,5,6; Nuetzel, Alexander3,4,5; Peckmann, Joern2; Vajda, Vivi1; Ivarsson, Magnus1
刊名ASTROBIOLOGY
出版日期2023-05-24
页码17
ISSN号1531-1074
关键词Ultrastructures Iron minerals Oceanic basalt Subsurface biosignatures
DOI10.1089/ast.2022.0075
通讯作者Qu, Yuangao(qu_yuangao@hotmail.com) ; Ivarsson, Magnus(magnus.ivarsson@nrm.se)
英文摘要Benefiting from their adaptability to extreme environments, subsurface microorganisms have been discovered in sedimentary and igneous rock environments on Earth and have been advocated as candidates in the search for extraterrestrial life. In this article, we study iron-mineralized microstructures in calcite-filled veins within basaltic pillows of the late Ladinian Fernazza group (Middle Triassic, 239 Ma) in Italy. These microstructures represent diverse morphologies, including filaments, globules, nodules, and micro-digitate stromatolites, which are similar to extant iron-oxidizing bacterial communities. In situ analyses including Raman spectroscopy have been used to investigate the morphological, elemental, mineralogical, and bond-vibrational modes of the microstructures. According to the Raman spectral parameters, iron minerals preserve heterogeneous ultrastructures and crystallinities, coinciding with the morphologies and precursor microbial activities. The degree of crystallinity usually represents a microscale gradient decreasing toward previously existing microbial cells, revealing a decline of mineralization due to microbial activities. This study provides an analog of possible rock-dwelling subsurface life on Mars or icy moons and advocates Raman spectroscopy as an efficient tool for in situ analyses. We put forward the concept that ultrastructural characteristics of minerals described by Raman spectral parameters corresponding to microscale morphologies could be employed as carbon-lean biosignatures in future space missions.
WOS关键词CARBONACEOUS-MATERIAL GEOTHERMOMETER ; RAMAN-SPECTROSCOPY ; MICROBIAL LIFE ; GOETHITE ; BIOMASS ; DIVERSITY ; DOLOMITES ; ENERGY ; CRUST ; IDENTIFICATION
资助项目Swedish Research Council[2017-04129] ; Swedish Research Council[2019-04061] ; Hundred Talents Program of China[E01X070201] ; National Key R&D Program of China[2018YFC0309800] ; Interdisciplinary Innovation Team of Chinese Academy of Sciences[JCTD-2020-18]
WOS研究方向Astronomy & Astrophysics ; Life Sciences & Biomedicine - Other Topics ; Geology
语种英语
出版者MARY ANN LIEBERT, INC
WOS记录号WOS:000993932100001
资助机构Swedish Research Council ; Hundred Talents Program of China ; National Key R&D Program of China ; Interdisciplinary Innovation Team of Chinese Academy of Sciences
源URL[http://ir.idsse.ac.cn/handle/183446/10480]  
专题深海科学研究部_地外海洋系统研究室
通讯作者Qu, Yuangao; Ivarsson, Magnus
作者单位1.Swedish Museum Nat Hist, Dept Paleobiol, Stockholm, Sweden
2.Univ Hamburg, Ctr Erdsyst Forsch & Nachhaltigkeit, Inst Geol, Hamburg, Germany
3.Ludwig Maximilians Univ Munchen, GeoBioctr, Munich, Germany
4.SNSB Bayer Staatssammlung Palaontol & Geobiol, Munich, Germany
5.Ludwig Maximilians Univ Munchen, Dept Geound Umweltwissensch Palaontol & Geobiol, Munich, Germany
6.Museum Nat South Tyrol, Bozen Bolzano, Italy
7.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China
8.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China
推荐引用方式
GB/T 7714		 Qu, Yuangao,Yin, Zongjun,Kustatscher, Evelyn,et al. Traces of Ancient Life in Oceanic Basalt Preserved as Iron-Mineralized Ultrastructures: Implications for Detecting Extraterrestrial Biosignatures[J]. ASTROBIOLOGY,2023:17.
APA Qu, Yuangao.,Yin, Zongjun.,Kustatscher, Evelyn.,Nuetzel, Alexander.,Peckmann, Joern.,...&Ivarsson, Magnus.(2023).Traces of Ancient Life in Oceanic Basalt Preserved as Iron-Mineralized Ultrastructures: Implications for Detecting Extraterrestrial Biosignatures.ASTROBIOLOGY,17.
MLA Qu, Yuangao,et al."Traces of Ancient Life in Oceanic Basalt Preserved as Iron-Mineralized Ultrastructures: Implications for Detecting Extraterrestrial Biosignatures".ASTROBIOLOGY (2023):17.

入库方式： OAI收割

来源：深海科学与工程研究所

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