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Differences in Scattering Properties of the Shallow Crusts of Earth, Mars, and the Moon Revealed by P-Wave Receiver Functions

文献类型：期刊论文

作者Shi, Jing3,4; Wang, Tao3; Chen, Han3; Yang, Minghan3; Chen, Ling1,5; Hui, Hejiu2,3; Xu, Zongbo4; Lognonne, Philippe4; Kawamura, Taichi4
刊名JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
出版日期2023-08-01
卷号128期号:8页码:20
ISSN号2169-9097
DOI10.1029/2022JE007676
英文摘要The scattering properties of terrestrial planetary bodies can provide valuable insights into their shallow seismic structure, meteoritic impact history, and geological activity. Scattering properties of the shallow crusts of Earth, Mars, and the Moon are investigated by constructing P-wave receiver functions (PRFs) from teleseismic waveforms with high signal-to-noise ratios. The authors' analysis reveals that strong coda waves lead to significant variations in the PRF waveforms calculated using different time windows, and the stability of the PRF is primarily influenced by the fractional velocity fluctuation. Synthetic PRFs for various scattering media confirm these observations. Comparing the observed and synthetic PRFs, it is found that the fractional velocity fluctuation in the shallow crust is greater than similar to 0.2 for the Moon but less than similar to 0.2 for Earth and Mars. The authors further discuss possible mechanisms that could have affected the fractional velocity fluctuation and suggest that the distinct fractional velocity fluctuation between the Moon and Earth/Mars is mainly due to differences in the water content of the crustal rocks of the three planetary bodies. Plain Language Summary Coda waves follow direct P or S waves and comprise scattered waves generated when seismic waves travel through a heterogeneous medium. These incoherent coda waves may interfere with seismic waves from coherent structures and complicate the interpretation of seismic structures. The authors compute P-wave receiver functions (PRFs) of Earth, Mars, and the Moon using teleseismic waveforms with high signal-to-noise ratios. It is found that the PRFs of Earth and Mars are reliable and that the crustal converted waves can be effectively recovered. However, the PRF of the Moon calculated using different time windows is unstable even for direct P waves. The authors demonstrate that the stability of the PRF can be used to characterize the strength of the seismic scattering. Increased scattering by the medium leads to the degradation of the PRF stability. The PRF stability is mainly affected by the fractional velocity fluctuation of the shallow crust, which is larger on the Moon than on Earth and Mars. The fractional velocity fluctuation of the shallow crust is smaller on Earth and Mars because their shallow crusts are hydrous, whereas the shallow crust of the Moon is anhydrous.
WOS关键词SEISMIC-WAVES ; WATER ; ATTENUATION ; VELOCITY ; INSIGHT ; HETEROGENEITY ; FLUCTUATIONS ; EVOLUTION ; MINERALS ; BEHAVIOR
资助项目National Natural Science Foundation of China[42288201] ; Fundamental Research Funds for the Central Universities[202106190130] ; China Scholarship Council[42125303] ; [020614380122] ; [42174214]
WOS研究方向Geochemistry & Geophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:001041822000001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council ; China Scholarship Council
源URL[http://ir.iggcas.ac.cn/handle/132A11/111356]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Wang, Tao
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Comparat Planetol, Hefei, Peoples R China
3.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, Sch Earth Sci & Engn, Nanjing, Peoples R China
4.Univ Paris Cite, Inst Phys globe Paris, CNRS, Paris, France
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Shi, Jing,Wang, Tao,Chen, Han,et al. Differences in Scattering Properties of the Shallow Crusts of Earth, Mars, and the Moon Revealed by P-Wave Receiver Functions[J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,2023,128(8):20.
APA Shi, Jing.,Wang, Tao.,Chen, Han.,Yang, Minghan.,Chen, Ling.,...&Kawamura, Taichi.(2023).Differences in Scattering Properties of the Shallow Crusts of Earth, Mars, and the Moon Revealed by P-Wave Receiver Functions.JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,128(8),20.
MLA Shi, Jing,et al."Differences in Scattering Properties of the Shallow Crusts of Earth, Mars, and the Moon Revealed by P-Wave Receiver Functions".JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS 128.8(2023):20.

入库方式： OAI收割

来源：地质与地球物理研究所

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