变化周期：火星奥林匹斯Maculae的长期和短期风成演变

IF 1.7 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Planetary and Space Science Pub Date : 2025-01-01 DOI:10.1016/j.pss.2024.106013

Kirby Runyon , Charlie Detelich , Kim Seelos , Christina Viviano , Debra Buczkowski , Ryan O’Connor , Jessica Harryman , Adriana Peña

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引用次数: 0

摘要

低尘的奥林匹斯山是了解火星当地火山和风成地层学的独特地质窗口。黄斑图显示了与2018年全球沙尘暴有关的沙尘覆盖变化，以及被限制在黑色黄斑图中的沙尘暴。区域沙塘和沙斑表明侵蚀和沉积，因此有很强的风，但我们没有观测到米尺度的暗沙层波纹运动，也没有观测到更多的10米尺度的区域波纹运动。在更长的时间尺度上，沿着连续的形态的波动指向磨损、填充、岩化和再磨损的循环。沙尘变化和尺度演化共同构成了黄斑区内及周边景观演化的时间尺度。

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

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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来源期刊

Planetary and Space Science 地学天文-天文与天体物理

CiteScore

5.40

自引率

4.20%

发文量

126

审稿时长

15 weeks

期刊介绍： Planetary and Space Science publishes original articles as well as short communications (letters). Ground-based and space-borne instrumentation and laboratory simulation of solar system processes are included. The following fields of planetary and solar system research are covered: • Celestial mechanics, including dynamical evolution of the solar system, gravitational captures and resonances, relativistic effects, tracking and dynamics • Cosmochemistry and origin, including all aspects of the formation and initial physical and chemical evolution of the solar system • Terrestrial planets and satellites, including the physics of the interiors, geology and morphology of the surfaces, tectonics, mineralogy and dating • Outer planets and satellites, including formation and evolution, remote sensing at all wavelengths and in situ measurements • Planetary atmospheres, including formation and evolution, circulation and meteorology, boundary layers, remote sensing and laboratory simulation • Planetary magnetospheres and ionospheres, including origin of magnetic fields, magnetospheric plasma and radiation belts, and their interaction with the sun, the solar wind and satellites • Small bodies, dust and rings, including asteroids, comets and zodiacal light and their interaction with the solar radiation and the solar wind • Exobiology, including origin of life, detection of planetary ecosystems and pre-biological phenomena in the solar system and laboratory simulations • Extrasolar systems, including the detection and/or the detectability of exoplanets and planetary systems, their formation and evolution, the physical and chemical properties of the exoplanets • History of planetary and space research