globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL060329
论文题名:
High manganese concentrations in rocks at Gale crater, Mars
作者: Lanza N.L.; Fischer W.W.; Wiens R.C.; Grotzinger J.; Ollila A.M.; Cousin A.; Anderson R.B.; Clark B.C.; Gellert R.; Mangold N.; Maurice S.; Le Mouélic S.; Nachon M.; Schmidt M.; Berger J.; Clegg S.M.; Forni O.; Hardgrove C.; Melikechi N.; Newsom H.E.; Sautter V.
刊名: Geophysical Research Letters
ISSN: 0094-9846
EISSN: 1944-9577
出版年: 2014
卷: 41, 期:16
起始页码: 5755
结束页码: 5763
语种: 英语
Scopus关键词: Redox reactions ; Aqueous environment ; Martian surface ; Orders of magnitude ; Oxidizing conditions ; Oxidizing environments ; Redox indicator ; Redox potentials ; Surface of Mars ; Manganese ; abundance ; concentration (composition) ; manganese ; Mars ; Martian atmosphere ; planetary surface ; rock
英文摘要: The surface of Mars has long been considered a relatively oxidizing environment, an idea supported by the abundance of ferric iron phases observed there. However, compared to iron, manganese is sensitive only to high redox potential oxidants, and when concentrated in rocks, it provides a more specific redox indicator of aqueous environments. Observations from the ChemCam instrument on the Curiosity rover indicate abundances of manganese in and on some rock targets that are 1-2 orders of magnitude higher than previously observed on Mars, suggesting the presence of an as-yet unidentified manganese-rich phase. These results show that the Martian surface has at some point in time hosted much more highly oxidizing conditions than has previously been recognized. © 2014. American Geophysical Union.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84906405241&doi=10.1002%2f2014GL060329&partnerID=40&md5=7e43ebec4c4d8a2f9a59124a7e2135d0
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7110
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作者单位: Los Alamos National Laboratory, Los Alamos, NM, United States

Recommended Citation:
Lanza N.L.,Fischer W.W.,Wiens R.C.,et al. High manganese concentrations in rocks at Gale crater, Mars[J]. Geophysical Research Letters,2014-01-01,41(16).
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