Differences in Scattering Properties of the Shallow Crusts of Earth, Mars, and the Moon Revealed by P-Wave Receiver Functions - INSU - Institut national des sciences de l'Univers Accéder directement au contenu
Article Dans Une Revue Journal of Geophysical Research. Planets Année : 2023

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

Résumé

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 ∼0.2 for the Moon but less than ∼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.
Fichier principal
Vignette du fichier
JGR Planets - 2023 - Shi.pdf (6.9 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

insu-04199337 , version 1 (28-09-2023)

Identifiants

Citer

Jing Shi, Tao Wang, Han Chen, Minghan Yang, Ling Chen, 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, 2023, 128 (8), pp.e2022JE007676. ⟨10.1029/2022JE007676⟩. ⟨insu-04199337⟩
27 Consultations
23 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More