Slope streaks in the Yingxiong Range, the western Qaidam Basin and implications for Mars
Morphological features on slope areas of Mars (such as gullies, slope streaks, and recurring slope lineae) are intriguing because they are the reflection of the mineralogy, climate, and atmosphere. However, the debate as to whether martian slope features represent dry and wet formation mechanisms re...
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ftchacadscgigcas:oai:ir.gig.ac.cn:344008/67631 2023-05-15T13:42:06+02:00 Slope streaks in the Yingxiong Range, the western Qaidam Basin and implications for Mars Cheng, Rui-Lin He, Hongping Michalski, Joseph R. Li, Yi-Liang Li, Long 2022-02-01 http://ir.gig.ac.cn/handle/344008/67631 https://doi.org/10.1016/j.geomorph.2021.108062 英语 eng ELSEVIER GEOMORPHOLOGY http://ir.gig.ac.cn/handle/344008/67631 doi:10.1016/j.geomorph.2021.108062 Physical Geography Geology Slope streaks Qaidam Basin Arid-zone geomorphology Mars surface Geography Physical Geosciences Multidisciplinary TIBETAN PLATEAU NW CHINA TERRESTRIAL ANALOG EVOLUTION HISTORY VALLEY PLAYA WATER DUST 期刊论文 2022 ftchacadscgigcas https://doi.org/10.1016/j.geomorph.2021.108062 2022-12-19T19:17:00Z Morphological features on slope areas of Mars (such as gullies, slope streaks, and recurring slope lineae) are intriguing because they are the reflection of the mineralogy, climate, and atmosphere. However, the debate as to whether martian slope features represent dry and wet formation mechanisms remains ongoing. Finding more dry and wet terrestrial analogs is one of the means to increase our understanding of these features. On the slope areas in the Yingxiong Range, the western Qaidam Basin, we observed slope streaks and surrounding features, including gullies, debris flows, and white patches. These slope streaks are light-toned, ranging from tens of meters to more than one hundred meters long, located on the slopes less than 20 degrees. The slope streaks at one study site were observed to disappear in the next year. The morphology of slope streaks and their relations with gullies and debris flows suggest that liquid flow played a role in the formation of slope streaks. According to the analyses of the mineralogical compositions and the particle size distributions of slope streaks, the light tone of the streak features was caused by the fine particle size of the materials carried by liquid flows. The disappearance of slope streaks occurred due to the covering of the coarse-particle materials brought by aeolian processes. The alternation of aqueous and aeolian processes led to the changes of slope streaks. The forming mechanism of slope streaks in the Qaidam Basin is not related to salts or brines, which is different from other terrestrial analogs of martian slope streaks (in Antarctica and Bolivia) reported so far. This new terrestrial analog suggests that both wet and dry processes get involved in the formation of slope streaks.(c) 2021 Elsevier B.V. All rights reserved. Report Antarc* Antarctica Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences) Geomorphology 398 108062 |
institution |
Open Polar |
collection |
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchacadscgigcas |
language |
English |
topic |
Physical Geography Geology Slope streaks Qaidam Basin Arid-zone geomorphology Mars surface Geography Physical Geosciences Multidisciplinary TIBETAN PLATEAU NW CHINA TERRESTRIAL ANALOG EVOLUTION HISTORY VALLEY PLAYA WATER DUST |
spellingShingle |
Physical Geography Geology Slope streaks Qaidam Basin Arid-zone geomorphology Mars surface Geography Physical Geosciences Multidisciplinary TIBETAN PLATEAU NW CHINA TERRESTRIAL ANALOG EVOLUTION HISTORY VALLEY PLAYA WATER DUST Cheng, Rui-Lin He, Hongping Michalski, Joseph R. Li, Yi-Liang Li, Long Slope streaks in the Yingxiong Range, the western Qaidam Basin and implications for Mars |
topic_facet |
Physical Geography Geology Slope streaks Qaidam Basin Arid-zone geomorphology Mars surface Geography Physical Geosciences Multidisciplinary TIBETAN PLATEAU NW CHINA TERRESTRIAL ANALOG EVOLUTION HISTORY VALLEY PLAYA WATER DUST |
description |
Morphological features on slope areas of Mars (such as gullies, slope streaks, and recurring slope lineae) are intriguing because they are the reflection of the mineralogy, climate, and atmosphere. However, the debate as to whether martian slope features represent dry and wet formation mechanisms remains ongoing. Finding more dry and wet terrestrial analogs is one of the means to increase our understanding of these features. On the slope areas in the Yingxiong Range, the western Qaidam Basin, we observed slope streaks and surrounding features, including gullies, debris flows, and white patches. These slope streaks are light-toned, ranging from tens of meters to more than one hundred meters long, located on the slopes less than 20 degrees. The slope streaks at one study site were observed to disappear in the next year. The morphology of slope streaks and their relations with gullies and debris flows suggest that liquid flow played a role in the formation of slope streaks. According to the analyses of the mineralogical compositions and the particle size distributions of slope streaks, the light tone of the streak features was caused by the fine particle size of the materials carried by liquid flows. The disappearance of slope streaks occurred due to the covering of the coarse-particle materials brought by aeolian processes. The alternation of aqueous and aeolian processes led to the changes of slope streaks. The forming mechanism of slope streaks in the Qaidam Basin is not related to salts or brines, which is different from other terrestrial analogs of martian slope streaks (in Antarctica and Bolivia) reported so far. This new terrestrial analog suggests that both wet and dry processes get involved in the formation of slope streaks.(c) 2021 Elsevier B.V. All rights reserved. |
format |
Report |
author |
Cheng, Rui-Lin He, Hongping Michalski, Joseph R. Li, Yi-Liang Li, Long |
author_facet |
Cheng, Rui-Lin He, Hongping Michalski, Joseph R. Li, Yi-Liang Li, Long |
author_sort |
Cheng, Rui-Lin |
title |
Slope streaks in the Yingxiong Range, the western Qaidam Basin and implications for Mars |
title_short |
Slope streaks in the Yingxiong Range, the western Qaidam Basin and implications for Mars |
title_full |
Slope streaks in the Yingxiong Range, the western Qaidam Basin and implications for Mars |
title_fullStr |
Slope streaks in the Yingxiong Range, the western Qaidam Basin and implications for Mars |
title_full_unstemmed |
Slope streaks in the Yingxiong Range, the western Qaidam Basin and implications for Mars |
title_sort |
slope streaks in the yingxiong range, the western qaidam basin and implications for mars |
publisher |
ELSEVIER |
publishDate |
2022 |
url |
http://ir.gig.ac.cn/handle/344008/67631 https://doi.org/10.1016/j.geomorph.2021.108062 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
GEOMORPHOLOGY http://ir.gig.ac.cn/handle/344008/67631 doi:10.1016/j.geomorph.2021.108062 |
op_doi |
https://doi.org/10.1016/j.geomorph.2021.108062 |
container_title |
Geomorphology |
container_volume |
398 |
container_start_page |
108062 |
_version_ |
1766162715142782976 |