Institutional Repository of Key Laboratory of Earth and Planetary Physics, Chinese Academy of Sciences
| Intricate Regolith Reworking Processes Revealed by Microstructures on Lunar Impact Glasses | |
Yan, Pan1; Xiao, Zhiyong1,2; Wu, Yunhua1; Yang, Wei3; Li, Jin-Hua3; Gu, Li-Xin3; Liao, Shiyong4; Yin, Zongjun5,6; Wang, Hao7 ; Tian, Heng-Ci3; Zhang, Chi3; Wu, Suping5,6; Ma, Hong-Xia3; Tang, Xu3; Wu, Shi-Tou7; Hui, Hejiu8,9; Xu, Yuchen10; Hsu, Weibiao4; Li, Qiu-Li3; Luo, Fanglu1; Liu, Yang10; Li, Xian-Hua3
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| 2022-12-01 | |
| Source Publication | JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
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| ISSN | 2169-9097 |
| Volume | 127Issue:12Pages:36 |
| Abstract | Glasses cooled from impact melt and vapor are a common component in lunar regolith, carrying important information about protolith composition, regolith formation, and impact flux on the Moon. Interpretations, however, are frequently challenged due to widespread ambiguity in determining their provenances. Regolith samples returned by China's Chang'E-5 mission provide a unique opportunity to study the microscopic mechanism of regolith reworking on the Moon, because as evidenced by the coherent radioisotope ages and petrographic characteristics of basaltic clasts in the regolith, the Chang'E-5 regolith was mainly evolved from local mare materials, containing minor exotic components. Here, we report 153 glass particles larger than 20 mu m in diameters that were screened from 500 mg of Chang'E-5 regolith. Most glass particles have rotational shapes and contain structural and/or compositional heterogeneities in interiors, and geochemical analyses reveal a dominant origin as impact melt of local mare materials. Surfaces of the impact glasses are observed to have abundant protruded and dented microstructures, which are classified as different groups based on their morphology and geochemistry. Similar microstructures were observed on impact spherules collected by the Apollo and Luna missions, but those on the Chang'E-5 impact glasses were formed without substantial involvement of exotic ejecta. Microstructures such as silicate melt pancakes that frequently exhibit flow spikes at margins, nano-phase iron-rich mounds that are arranged with semi-equidistant spaces in curves and patches, spatially clustered microcraters that are indicative of secondary impacts, and blunt linear scratches with terminal particles all suggest that regolith reworking mainly occurred among local materials at low speeds. |
| Keyword | lunar regolith Chang'E-5 impact glass space weathering impact spherule |
| DOI | 10.1029/2022JE007260 |
| Funding Organization | Strategic Priority Research Program of Chinese Academy of Science ; Strategic Priority Research Program of Chinese Academy of Science ; Key Research program of Chinese Academy of Sciences ; Key Research program of Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Science ; Strategic Priority Research Program of Chinese Academy of Science ; Key Research program of Chinese Academy of Sciences ; Key Research program of Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Science ; Strategic Priority Research Program of Chinese Academy of Science ; Key Research program of Chinese Academy of Sciences ; Key Research program of Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Science ; Strategic Priority Research Program of Chinese Academy of Science ; Key Research program of Chinese Academy of Sciences ; Key Research program of Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences |
| WOS Keyword | AUSTRALASIAN MICROTEKTITES ; 40AR/39AR AGES ; LANDING SITE ; SURFACE ; CRATERS ; ORIGIN ; MOON ; FRACTIONATION ; PROVENANCE ; CHEMISTRY |
| Language | 英语 |
| Funding Project | Strategic Priority Research Program of Chinese Academy of Science[XDB41000000] ; Key Research program of Chinese Academy of Sciences[ZDBS-SSW-JSC007-13] ; institute of Geology and Geophysics, Chinese Academy of Sciences[IGGCAS-202101] |
| Funding Organization | Strategic Priority Research Program of Chinese Academy of Science ; Strategic Priority Research Program of Chinese Academy of Science ; Key Research program of Chinese Academy of Sciences ; Key Research program of Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Science ; Strategic Priority Research Program of Chinese Academy of Science ; Key Research program of Chinese Academy of Sciences ; Key Research program of Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Science ; Strategic Priority Research Program of Chinese Academy of Science ; Key Research program of Chinese Academy of Sciences ; Key Research program of Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Science ; Strategic Priority Research Program of Chinese Academy of Science ; Key Research program of Chinese Academy of Sciences ; Key Research program of Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences ; institute of Geology and Geophysics, Chinese Academy of Sciences |
| WOS Research Area | Geochemistry & Geophysics |
| WOS Subject | Geochemistry & Geophysics |
| WOS ID | WOS:000908346300007 |
| Publisher | AMER GEOPHYSICAL UNION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.iggcas.ac.cn/handle/132A11/106889 |
| Collection | 地球与行星物理院重点实验室 岩石圈演化国家重点实验室 |
| Corresponding Author | Xiao, Zhiyong |
| Affiliation | 1.Sun Yat Sen Univ, Sch Atmospher Sci, Planetary Environm & Astrobiol Res Lab, Zhuhai, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Comparat Planetol, Hefei, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 4.Chinese Acad Sci, Key Lab Planetary Sci, Purple Mt Observ, Nanjing, Peoples R China 5.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China 6.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing, Peoples R China 7.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 8.Nanjing Univ, State Key Lab Mineral Deposits Res, Nanjing, Peoples R China 9.Nanjing Univ, Lunar & Planetary Sci Inst, Sch Earth Sci & Engn, Nanjing, Peoples R China 10.Chinese Acad Sci, Natl Space Sci Ctr, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Yan, Pan,Xiao, Zhiyong,Wu, Yunhua,et al. Intricate Regolith Reworking Processes Revealed by Microstructures on Lunar Impact Glasses[J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,2022,127(12):36. |
| APA | Yan, Pan.,Xiao, Zhiyong.,Wu, Yunhua.,Yang, Wei.,Li, Jin-Hua.,...&Li, Xian-Hua.(2022).Intricate Regolith Reworking Processes Revealed by Microstructures on Lunar Impact Glasses.JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,127(12),36. |
| MLA | Yan, Pan,et al."Intricate Regolith Reworking Processes Revealed by Microstructures on Lunar Impact Glasses".JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS 127.12(2022):36. |
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