DOI: 10.1002/2017JE005401
Scopus记录号: 2-s2.0-85040177230
论文题名: The Mars Science Laboratory (MSL) Bagnold Dunes Campaign, Phase I: Overview and introduction to the special issue
作者: Bridges N.T. ; Ehlmann B.L.
刊名: Journal of Geophysical Research: Planets
ISSN: 21699097
出版年: 2018
卷: 123, 期: 1 起始页码: 3
结束页码: 19
语种: 英语
英文关键词: bed forms
; Mars
; sand chemistry
; sand dunes
; sand grains
; volatiles
Scopus关键词: basalt
; bedform
; crystal chemistry
; dune field
; eolian process
; Mars
; mineralogy
; sand
; sedimentary rock
; soil
; volatile substance
; wind velocity
英文摘要: The Bagnold dunes in Gale Crater, Mars, are the first active aeolian dune field explored in situ on another planet. The Curiosity rover visited the Bagnold dune field to understand modern winds, aeolian processes, rates, and structures; to determine dune material composition, provenance, and the extent and type of compositional sorting; and to collect knowledge that informs the interpretation of past aeolian processes that are preserved in the Martian sedimentary rock record. The Curiosity rover conducted a coordinated campaign of activities lasting 4 months, interspersed with other rover activities, and employing all of the rover's science instruments and several engineering capabilities. Described in 13 manuscripts and summarized here, the major findings of the Bagnold Dunes Campaign, Phase I, include the following: the characterization of and explanation for a distinctive, meter-scale size of sinuous aeolian bedform formed in the high kinetic viscosity regime of Mars' thin atmosphere; articulation and evaluation of a grain splash model that successfully explains the occurrence of saltation even at wind speeds below the fluid threshold; determination of the dune sands' basaltic mineralogy and crystal chemistry in comparison with other soils and sedimentary rocks; and characterization of chemically distinctive volatile reservoirs in sand-sized versus dust-sized fractions of Mars soil, including two volatile-bearing types of amorphous phases. ©2017. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114871
Appears in Collections: 气候减缓与适应
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作者单位: Applied Physics Laboratory, The Johns Hopkins University, Laurel, MD, United States; United States; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Recommended Citation:
Bridges N.T.,Ehlmann B.L.. The Mars Science Laboratory (MSL) Bagnold Dunes Campaign, Phase I: Overview and introduction to the special issue[J]. Journal of Geophysical Research: Planets,2018-01-01,123(1)