干旱区生态环境知识资源中心(Arid): A Rock Record of Complex Aeolian Bedforms in a Hesperian Desert Landscape: The Stimson Formation as Exposed in the Murray Buttes, Gale Crater, Mars

Arid

DOI	10.1029/2020JE006554
	A Rock Record of Complex Aeolian Bedforms in a Hesperian Desert Landscape: The Stimson Formation as Exposed in the Murray Buttes, Gale Crater, Mars
	Banham, Steven G.; Gupta, Sanjeev; Rubin, David M.; Edgett, Kenneth S.; Barnes, Robert; Van Beek, Jason; Watkins, Jessica A.; Edgar, Lauren A.; Fedo, Christopher M.; Williams, Rebecca M.; Stack, Kathryn M.; Grotzinger, John P.; Lewis, Kevin; Ewing, Ryan C.; Day, Mackenzie; Vasavada, Ashwin R.
通讯作者	Banham, SG (corresponding author), Imperial Coll London, Dept Earth Sci & Engn, London, England.
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
ISSN	2169-9097
EISSN	2169-9100
出版年	2021
卷号	126 期号:4
英文摘要	Lithified aeolian strata encode information about ancient planetary surface processes and the climate during deposition. Decoding these strata provides insight regarding past sediment transport processes, bedform kinematics, depositional landscape, and the prevailing climate. Deciphering these signatures requires a detailed analysis of sedimentary architecture to reconstruct dune morphology, motion, and the conditions that enabled their formation. Here, we show that a distinct sandstone unit exposed in the foothills of Mount Sharp, Gale crater, Mars, records the preserved expression of compound aeolian bedforms that accumulated in a large dune field. Analysis of Mastcam images of the Stimson formation shows that it consists of cross-stratified sandstone beds separated by a hierarchy of erosive bounding surfaces formed during dune migration. The presence of two orders of surfaces with distinct geometrical relations reveals that the Stimson-era landscape consisted of large dunes (draas) with smaller, superimposed dunes migrating across their lee slopes. Analysis of cross-lamination and subset bounding surface geometries indicate a complex wind regime that transported sediment toward the north, constructing oblique dunes. This dune field was a direct product of the regional climate and the surface processes active in Gale crater during the fraction of the Hesperian Period recorded by the Stimson formation. The environment was arid, supporting a large aeolian dune field; this setting contrasts with earlier humid depositional episodes, recorded by the lacustrine sediments of the Murray formation (also Hesperian). Such fine-scale reconstruction of landscapes on the ancient surface of Mars is important to understanding the planet's past climate and habitability.
英文关键词	Aeolian dune field Gale Crater Mars Mars Science Laboratory stratigraphy
类型	Article
语种	英语
开放获取类型	Green Accepted, hybrid
收录类别	SCI-E
WOS记录号	WOS:000643941100020
WOS关键词	CEDAR-MESA SANDSTONE ; DUNE FIELD ; BOUNDING SURFACES ; MERIDIANI-PLANUM ; SOUTHEASTERN CALIFORNIA ; STRATIGRAPHIC EVOLUTION ; INTERDUNE DEPOSITS ; SEDIMENTARY RECORD ; EOLIAN DEPOSITS ; MOUNT SHARP
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
来源机构	United States Geological Survey ; University of California, Los Angeles
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350846
作者单位	[Banham, Steven G.; Gupta, Sanjeev; Barnes, Robert] Imperial Coll London, Dept Earth Sci & Engn, London, England; [Rubin, David M.] Univ Calif Santa Cruz, Dept Earth & Planetary Sci, Santa Cruz, CA 95064 USA; [Edgett, Kenneth S.] Malin Space Sci Syst, San Diego, CA USA; [Van Beek, Jason; Stack, Kathryn M.; Vasavada, Ashwin R.] CALTECH, Jet Prop Lab, Pasadena, CA USA; [Watkins, Jessica A.] NASA, Lyndon B Johnson Space Ctr, Houston, TX 77058 USA; [Edgar, Lauren A.] US Geol Survey, Astrogeol Sci Ctr, Flagstaff, AZ 86001 USA; [Fedo, Christopher M.] Univ Tennessee Knoxville, Dept Earth & Planetary Sci, Knoxville, TN USA; [Williams, Rebecca M.] Planetary Sci Inst, Tucson, AZ USA; [Grotzinger, John P.] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA; [Lewis, Kevin] Johns Hopkins Univ, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA; [Ewing, Ryan C.] Texas A&M Univ, Dept Geol & Geophys, College Stn, TX USA; [Day, Mackenzie] Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA
推荐引用方式 GB/T 7714	Banham, Steven G.,Gupta, Sanjeev,Rubin, David M.,et al. A Rock Record of Complex Aeolian Bedforms in a Hesperian Desert Landscape: The Stimson Formation as Exposed in the Murray Buttes, Gale Crater, Mars[J]. United States Geological Survey, University of California, Los Angeles,2021,126(4).
APA	Banham, Steven G..,Gupta, Sanjeev.,Rubin, David M..,Edgett, Kenneth S..,Barnes, Robert.,...&Vasavada, Ashwin R..(2021).A Rock Record of Complex Aeolian Bedforms in a Hesperian Desert Landscape: The Stimson Formation as Exposed in the Murray Buttes, Gale Crater, Mars.JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,126(4).
MLA	Banham, Steven G.,et al."A Rock Record of Complex Aeolian Bedforms in a Hesperian Desert Landscape: The Stimson Formation as Exposed in the Murray Buttes, Gale Crater, Mars".JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS 126.4(2021).