Cycles of change: Long and short term aeolian evolution at the Olympus Maculae, Mars

被引：0
|
作者：
Runyon, Kirby [1 ]
Detelich, Charlie [2 ]
Seelos, Kim [3 ]
Viviano, Christina [3 ]
Buczkowski, Debra [3 ]
O'Connor, Ryan [4 ]
Harryman, Jessica [5 ]
Pena, Adriana [1 ,3 ]
机构：
[1] Planetary Sci Inst, 1700 East Ft Lowell,Suite 106, Tucson, AZ 85719 USA
[2] Cornell Univ, Dept Astron, Ithaca, NY USA
[3] Johns Hopkins Univ, Appl Phys Lab, 11100 Johns Hopkins Rd, Laurel, MD 20723 USA
[4] Catalent Pharm Solut, Baltimore, MD USA
[5] NOAA, Washington, DC USA
来源：
PLANETARY AND SPACE SCIENCE | 2025年 / 255卷
关键词：
Aeolian; Geomorphology; Geology; Surface-atmosphere coupling; Change detection; Mars;
D O I：
10.1016/j.pss.2024.106013
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The low-dust Olympus Maculae are a unique geologic window to the local volcanic and aeolian stratigraphy on Mars. The Maculae display dust-cover changes associated with the 2018 global dust storm and dust devils confined to the dark maculae. Regional yardangs and sand patches indicate erosion and deposition and thus strong wind, yet we have not observed meter-scale ripple movement within the dark sand deposits nor decameter-scale ripple movement more regionally. On longer timescales, yardangs along a continuum of morphologies point to cycles of abrasion, infilling, lithification, and re-abrasion. Together, the dust changes and yardang evolution bracket the timescales for landscape evolution in and around the Maculae.
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页数：11
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