IGGCAS OpenIR  > 地球与行星物理院重点实验室
Orbital Identification of Hydrated Silica in Jezero Crater, Mars
Tarnas, J. D.1; Mustard, J. F.1; Lin, Honglei2; Goudge, T. A.3; Amador, E. S.4,5; Bramble, M. S.1; Kremer, C. H.1; Zhang, X.6; Itoh, Y.7; Parente, M.7
2019-11-25
Source PublicationGEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
Pages12
AbstractSilica has the highest demonstrated potential of any phase to preserve microfossils on Earth and therefore may host potential biosignatures on Mars. We detected hydrated silica in Jezero crater, the landing site of the National Aeronautics and Space Administration's Mars 2020 rover mission, by applying Dynamic Aperture Factor Analysis/Target Transformation to images from the Compact Reconnaissance Imaging Spectrometer for Mars. Hydrated silica detections with Dynamic Aperture Factor Analysis/Target Transformation were verified using commonly accepted Compact Reconnaissance Imaging Spectrometer for Mars analysis methods. The morphology of geologic units associated with silica was characterized with high-resolution imaging. Several hypotheses are presented for the formation environment of hydrated silica. All are testable via in situ investigation. We assess the likelihood of silica to preserve biosignatures in these different scenarios based on habitability considerations and biosignature preservation in Earth analog environments and materials. Also reported are possible detections of hydrated silica in the Nili Fossae basement and olivine-rich units, as well as Al-phyllosilicate within Jezero crater.
KeywordMars Jezero silica biosignature
DOI10.1029/2019GL085584
Funding OrganizationNASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program
WOS KeywordSYRTIS MAJOR ; DEPOSITS ; MINERALS ; ANCIENT ; SYSTEM ; CHERT ; CRISM ; SILICIFICATION ; STRATIGRAPHY ; PRESERVATION
Language英语
Funding ProjectNASA Mars Data Analysis Program[NNX13AK72G]
Funding OrganizationNASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program ; NASA Mars Data Analysis Program
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000498355100001
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95793
Collection地球与行星物理院重点实验室
Corresponding AuthorTarnas, J. D.
Affiliation1.Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02912 USA
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
3.Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, Austin, TX USA
4.NASA, Jet Prop Lab, Pasadena, CA USA
5.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA
6.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing, Peoples R China
7.Univ Massachusetts, Dept Elect & Comp Engn, Amherst, MA 01003 USA
Recommended Citation
GB/T 7714
Tarnas, J. D.,Mustard, J. F.,Lin, Honglei,et al. Orbital Identification of Hydrated Silica in Jezero Crater, Mars[J]. GEOPHYSICAL RESEARCH LETTERS,2019:12.
APA Tarnas, J. D..,Mustard, J. F..,Lin, Honglei.,Goudge, T. A..,Amador, E. S..,...&Parente, M..(2019).Orbital Identification of Hydrated Silica in Jezero Crater, Mars.GEOPHYSICAL RESEARCH LETTERS,12.
MLA Tarnas, J. D.,et al."Orbital Identification of Hydrated Silica in Jezero Crater, Mars".GEOPHYSICAL RESEARCH LETTERS (2019):12.
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