New Insights Into Composition Variation of Mars South Polar Layered Deposits From SHARAD Radar Sounder
文献类型：期刊论文
| 作者 | Fang, Peng1,2,3; Zhang, Jinhai1,2,3 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 128期号:9页码:17 |
| ISSN号 | 2169-9097 |
| 关键词 | Mars SPLD shadow zone radar fog lossy material |
| DOI | 10.1029/2023JE007812 |
| 英文摘要 | The south polar layered deposits (SPLD) of Mars record its Amazonian climate history. Detailed stratigraphic analyses of the SPLD will improve our understanding of the Martian depositional system. Radar reflection patterns correlate with the varying composition of the internal layers, thus providing a key to unlocking the depositional history of the SPLD and Martian paleoclimate. Using data from SHAllow RADar (SHARAD) onboard the Mars Reconnaissance Orbiter, we studied a new type of weak reflection pattern (shadow zone) across the SPLD. These shadow zones lack identifiable bases and are generally deeper than previously reported low-reflection zones interpreted as sealed CO2 ice. The discrepancy between the waveforms of shadow zones in focused and unfocused radargrams was used to identify whether the shadow zones were associated with fog-related data-processing artifacts. Numerical simulations utilizing various dielectric models demonstrate that lossy materials are most likely the cause of the shadow zone. These materials are expected to exhibit a gradual increase in concentration with depth, ranging from pure water ice to lossy materials at a scale of >50 m. The presence of such lossy materials is consistent with the compositional heterogeneity of SPLD, but their origins remain obscure. |
| WOS关键词 | CLIMATE RECORD ; ICE ; SUBSURFACE ; STRATIGRAPHY ; WATER ; EVOLUTION ; MIXTURES ; DENSITY ; EPICA ; AGES |
| 资助项目 | National Key R&D Program of China[2022YFF0503203] ; National Natural Science Foundation of China[42325406] ; National Natural Science Foundation of China[41941002] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-202203] ; Key Research Program of the Chinese Academy of Sciences[ZDBS-SSWTLC001] ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:001060976400001 |
| 资助机构 | National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; 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 ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; 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 ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; 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 ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; 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 ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences (2016) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/110827]  |
| 专题 | 地质与地球物理研究所_深部资源勘探装备研发 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Zhang, Jinhai |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Engn Lab Deep Resources Equipment & Technol, Beijing, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Peng,Zhang, Jinhai. New Insights Into Composition Variation of Mars South Polar Layered Deposits From SHARAD Radar Sounder[J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,2023,128(9):17. |
| APA | Fang, Peng,&Zhang, Jinhai.(2023).New Insights Into Composition Variation of Mars South Polar Layered Deposits From SHARAD Radar Sounder.JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,128(9),17. |
| MLA | Fang, Peng,et al."New Insights Into Composition Variation of Mars South Polar Layered Deposits From SHARAD Radar Sounder".JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS 128.9(2023):17. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。