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

doi:10.1089/ast.2022.0075

NIGPAS OpenIR

	Traces of Ancient Life in Oceanic Basalt Preserved as Iron-Mineralized Ultrastructures: Implications for Detecting Extraterrestrial Biosignatures
通讯作者	Qu, Yuangao(qu_yuangao@hotmail.com) ; Ivarsson, Magnus(magnus.ivarsson@nrm.se)
	Qu, Yuangao 1; Yin, Zongjun2 ; Kustatscher, Evelyn 3,4,5; Nuetzel, Alexander 4,5,6; Peckmann, Joern 7; Vajda, Vivi 8; Ivarsson, Magnus 8
	2023-05-24
发表期刊	ASTROBIOLOGY
ISSN	1531-1074
页码	17
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.
关键词	Ultrastructures Iron minerals Oceanic basalt Subsurface biosignatures
DOI	10.1089/ast.2022.0075
收录类别	SCI
语种	英语
关键词[WOS]	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
WOS类目	Astronomy & Astrophysics ; Biology ; Geosciences, Multidisciplinary
WOS记录号	WOS:000993932100001
项目资助者	Swedish Research Council ; Hundred Talents Program of China ; National Key R&D Program of China ; Interdisciplinary Innovation Team of Chinese Academy of Sciences
出版者	MARY ANN LIEBERT, INC
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/42197
专题	中国科学院南京地质古生物研究所
通讯作者	Qu, Yuangao; Ivarsson, Magnus
作者单位	1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China 3.Museum Nat South Tyrol, Bozen Bolzano, Italy 4.Ludwig Maximilians Univ Munchen, Dept Geound Umweltwissensch Palaontol & Geobiol, Munich, Germany 5.SNSB Bayer Staatssammlung Palaontol & Geobiol, Munich, Germany 6.Ludwig Maximilians Univ Munchen, GeoBioctr, Munich, Germany 7.Univ Hamburg, Ctr Erdsyst Forsch & Nachhaltigkeit, Inst Geol, Hamburg, Germany 8.Swedish Museum Nat Hist, Dept Paleobiol, Stockholm, Sweden
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.