Regional Correlations in the Layered Deposits of Arabia Terra, Mars

被引:24
作者
Annex, Andrew M. [1 ]
Lewis, Kevin W. [1 ]
机构
[1] Johns Hopkins Univ, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA
关键词
Mars; MERIDIANI-PLANUM; SEDIMENTARY-ROCKS; GALE CRATER; HISTORY; STRATIGRAPHY; PYROCLASTS; THICKNESS; TRANSPORT; EROSION; ORIGIN;
D O I
10.1029/2019JE006188
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
In the mid-equatorial region of Arabia Terra, Mars, dozens of moderately sized impact craters (10 to 100 km diameter) contain layered sedimentary deposits. Previous work has found that these layers are resolvable at the meter scale and that they are quasiperiodic in expression. However, the interrelationships of these deposits, along with their formative depositional process, has not yet been determined. Proposed formation mechanisms include fluviolacustrine deposition, groundwater upwelling and evaporation, and aeolian or distal volcanic air fall. For this study, we measured layer thicknesses from stereo image-derived topography within nine craters. We find two regionally extensive layered units with characteristic average bed thicknesses of 12 and 3.5 m and a possible third unit of intermediate thickness. Each unit was identified in a number of craters forming regionally consistent groups. These proposed units represent the first regional correlations of isolated sedimentary deposits in Arabia Terra and point to blanketing regional deposition over at least two separate geologic periods.
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页数:14
相关论文
共 65 条
[1]  
ANDERSON RY, 1972, GEOL SOC AM BULL, V83, P59, DOI 10.1130/0016-7606(1972)83[59:PCVESW]2.0.CO
[2]  
2
[3]   Meridiani Planum and the global hydrology of Mars [J].
Andrews-Hanna, Jeffrey C. ;
Phillips, Roger J. ;
Zuber, Maria T. .
NATURE, 2007, 446 (7132) :163-166
[4]   Early Mars hydrology: Meridiani playa deposits and the sedimentary record of Arabia Terra [J].
Andrews-Hanna, Jeffrey C. ;
Zuber, Maria T. ;
Arvidson, Raymond E. ;
Wiseman, Sandra M. .
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2010, 115
[5]   Early Mars hydrology: 2. Hydrological evolution in the Noachian and Hesperian epochs [J].
Andrews-Hanna, Jeffrey C. ;
Lewis, Kevin W. .
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2011, 116
[6]  
[Anonymous], PLANETARY SPACE SCI
[7]   The Ames Stereo Pipeline: NASA's Open Source Software for Deriving and Processing Terrain Data [J].
Beyer, Ross A. ;
Alexandrov, Oleg ;
McMichael, Scott .
EARTH AND SPACE SCIENCE, 2018, 5 (09) :537-548
[8]   Global mineralogical and aqueous mars history derived from OMEGA/Mars express data [J].
Bibring, JP ;
Langevin, Y ;
Mustard, JF ;
Poulet, F ;
Arvidson, R ;
Gendrin, A ;
Gondet, B ;
Mangold, N ;
Pinet, P ;
Forget, F .
SCIENCE, 2006, 312 (5772) :400-404
[9]   Phyllosilicate diversity and past aqueous activity revealed at Mawrth Vallis, Mars [J].
Bishop, Janice L. ;
Dobrea, Eldar Z. Noe ;
McKeown, Nancy K. ;
Parente, Mario ;
Ehlmann, Bethany L. ;
Michalski, Joseph R. ;
Milliken, Ralph E. ;
Poulet, Francois ;
Swayze, Gregg A. ;
Mustard, John F. ;
Murchie, Scott L. ;
Bibring, Jean-Pierre .
SCIENCE, 2008, 321 (5890) :830-833
[10]   Thickness variations and volume estimates of tephra fall deposits: the importance of particle Reynolds number [J].
Bonadonna, C ;
Ernst, GGJ ;
Sparks, RSJ .
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH, 1998, 81 (3-4) :173-187