Browsing Observatorio Vulcanológico y Sismológico de Costa Rica by Author "Fischer, Karen M."

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    • Constraints on upper mantle anisotropy surrounding the Cocos slab from SK(K)S splitting 

      Abt, David L.; Fischer, Karen M.; Abers, Geoffrey A.; González, Victor; Strauch, Wilfried; Protti, Marino (American Geophysical Union, 2010-06-24)
      SKS and SKKS splitting observations are used to constrain the pattern of mantle flow in the Central American subduction zone beneath Costa Rica and Nicaragua. After removing the effects of shallow wedge anisotropy on ...

    • 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 ...