Browsing Observatorio Vulcanológico y Sismológico de Costa Rica by Subject "LITOSFERA"

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    • Crustal structure along the southern Central American volcanic front 

      Mackenzie, Laura; Abers, Geoffroy A.; Fischer, Karen M.; Protti, Marino; González, Victor (American Geophysical Union, 2008-08-20)
      Subduction alters continents several ways, including accretion, magmatic addition, mantle wedge serpentinization, and crustal differentiation. These changes affect seismic velocities, so characterizing upper plate crust ...

    • Crustal Velocity Anomalies in Costa Rica from Ambient Noise Tomography 

      Nuñez Alpízar, Evelyn; Schimmel, M.; Stich, D.; Iglesias, A. (Springer Nature, 2019-08-24)
      We derive group velocity maps for crustal Rayleigh waves across Costa Rica and corresponding 3-D shear-wave velocity structure from ambient noise cross-correlations between 56 seismic broadband stations. The daily inter-station ...