Another Paper on Sol1222a

Another paper published by our group in the GRL special collection “The Large Marsquake of Sol 1222”:

Li., J., Beghein, C., Lognonné, P., McLennan, S., Wieczorek, M.A., Panning, M., Knapmeyer-Endrun, B., Davis, P., and Banerdt, W. (2022), Different Martian Crustal Seismic Velocities across the Dichotomy Boundary from Multi-Orbiting Surface Waves, Geophys. Res. Let., 50, 1, doi:10.1029/2022GL101243

Main Points:

  • Analyses of the minor-arc and major-arc Rayleigh waves reveal different Martian crustal structures across the dichotomy boundary
  • The average shear-wave velocity is faster in the highlands than in the lowlands near the dichotomy boundary
  • The lower shear-wave velocity in the lowlands may be due to the presence of sedimentary rocks and relatively higher porosity