A Polygonal Terrain on Southern Martian Polar Cap: Implications for Its Formation Mechanism
文献类型：期刊论文
| 作者 | Zhang, Lei1,2; Lu, Yang3; Zhang, Jinhai1,2 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 14期号:22页码:9 |
| 关键词 | polygonal terrain Mars southern polar cap formation mechanism gravity-driven plastic deformation and creep |
| DOI | 10.3390/rs14225789 |
| 英文摘要 | Polygonal terrains on a Martian southern polar cap have been observed in high-resolution images by the Mars Orbiter Camera. However, their formation mechanism is enigmatic due to the lack of constraints from their geometric and physical properties. Here we proposed a series of recognition procedures on an image of polygonal terrain located at Australe Scopuli taken by a High-Resolution Imaging Science Experiment. Then, we quantitatively analyzed the areas, orientations and polygon edge densities (similar to 0.10 to similar to 0.06 in different subregions) of the polygonal terrain. Based on the recognition results, three elevation-related subregions can be distinguished according to the distributions of polygon size and orientation. The two side subregions distribute relatively small and relatively large polygons, respectively. The middle subregion can be regarded as an intermediate zone along the slope (similar to 1 degrees). The intermediate zone is squeezed by the surrounding polygons, indicating a possible uplift or subsidence on previous or present Mars. This paper found a possible formation mechanism of the polygonal terrain located at the south pole of Mars, suggesting that polar-icecap polygons are formed during the process of lateral sliding gravity-driven plastic creep and the deformation of ice, with the polygon boundaries being reshaped during the alignment at high slopes and partially compressed at low slopes. These properties and possible formation mechanisms could provide more constraints on understanding ancient and/or present climates on Mars. |
| WOS关键词 | ICE-RELATED LANDFORMS ; NORTHERN PLAINS ; LIQUID WATER ; MARS ; SURFACE ; TEMPERATURE ; PATTERNS ; DEPOSITS ; FEATURES ; CRACKING |
| 资助项目 | National Natural Science Foundation of China[42204178] ; National Natural Science Foundation of China[41941002] ; China Postdoctoral Science Foundation[2021M703193] ; Key Research Program of the Chinese Academy of Sciences[ZDBS-SSWTLC00104] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000887725400001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/107677]  |
| 专题 | 地质与地球物理研究所_深部资源勘探装备研发 |
| 通讯作者 | Zhang, Jinhai |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Engn Lab Deep Resources Equipment & Technol, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Hohai Univ, Coll Water Conservancy & Hydropower Engn, Nanjing 210098, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Lei,Lu, Yang,Zhang, Jinhai. A Polygonal Terrain on Southern Martian Polar Cap: Implications for Its Formation Mechanism[J]. REMOTE SENSING,2022,14(22):9. |
| APA | Zhang, Lei,Lu, Yang,&Zhang, Jinhai.(2022).A Polygonal Terrain on Southern Martian Polar Cap: Implications for Its Formation Mechanism.REMOTE SENSING,14(22),9. |
| MLA | Zhang, Lei,et al."A Polygonal Terrain on Southern Martian Polar Cap: Implications for Its Formation Mechanism".REMOTE SENSING 14.22(2022):9. |
入库方式： OAI收割
来源：地质与地球物理研究所
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