气候变化领域集成服务门户(CCPortal): Inverted channel belts and floodplain clays to the East of Tempe Terra, Mars: Implications for persistent fluvial activity on early Mars

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DOI	10.1016/j.epsl.2021.116854
	Inverted channel belts and floodplain clays to the East of Tempe Terra, Mars: Implications for persistent fluvial activity on early Mars
	Liu Z.; Liu Y.; Pan L.; Zhao J.; Kite E.S.; Wu Y.; Zou Y.
发表日期	2021
ISSN	0012821X
卷号	562
英文摘要	The climate on early Mars is one of the major unsolved problems in planetary science. It is unclear whether early Mars was warm and wet or cold and icy. Morphological features on Mars such as sinuous ridges could provide critical constraints to address this issue. Here we investigate several sinuous ridges to the east of Tempe Terra, located at the dichotomy boundary of the highland terrain and lowland plains and find these ridges may have recorded persistent fluvial activity on early Mars. Our analysis indicates that these ridges may represent exhumation of the channel belts and overbank deposits formed from meandering rivers over significant geologic time. Layered smectite-bearing minerals are distributed along the flank of the ridges, and could be detrital or authigenic floodplain clays. Our interpretation of the stratigraphic relationships indicates that the layered smectite-bearing materials lie between channel belt deposits, which has rarely been previously reported on Mars and supports the floodplain interpretation. Our results suggest a persistent warm period, perhaps triggered by volcanism, impacts, and/or variations in planetary obliquity, that persisted for a geologically significant interval (tens of thousands of years) during the Noachian period of Mars. © 2021 Elsevier B.V.
关键词	early Mars floodplain clays fluvial activity sinuous ridges warming events
英文关键词	Banks (bodies of water); Deposits; Floods; Stratigraphy; Bearing materials; Critical constraints; Dichotomy boundary; Lowland plains; Meandering rivers; Morphological features; Planetary science; Unsolved problems; Rivers; authigenesis; channel flow; floodplain; Mars; Martian atmosphere; satellite data; satellite imagery; smectite
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203195
作者单位	State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Science, Beijing, 100049, China; Center for Excellence in Comparative Planetology, Chinese Academy of Sciences, Hefei, 230026, China; University of Copenhagen, GLOBE Institute, Center for Star and Planet Formation, Denmark; Planetary Science Institute, China University of Geosciences, Wuhan, 430074, China; University of Chicago, Chicago, IL 6063, United States
推荐引用方式 GB/T 7714	Liu Z.,Liu Y.,Pan L.,et al. Inverted channel belts and floodplain clays to the East of Tempe Terra, Mars: Implications for persistent fluvial activity on early Mars[J],2021,562.
APA	Liu Z..,Liu Y..,Pan L..,Zhao J..,Kite E.S..,...&Zou Y..(2021).Inverted channel belts and floodplain clays to the East of Tempe Terra, Mars: Implications for persistent fluvial activity on early Mars.Earth and Planetary Science Letters,562.
MLA	Liu Z.,et al."Inverted channel belts and floodplain clays to the East of Tempe Terra, Mars: Implications for persistent fluvial activity on early Mars".Earth and Planetary Science Letters 562(2021).