Crustal thickness beneath the Andes and Sierras Pampeanas at 30 S inferred from Pn apparent phase velocities

@inproceedings{Fromm2004CrustalTB,
  title={Crustal thickness beneath the Andes and Sierras Pampeanas at 30 S inferred from Pn apparent phase velocities},
  author={Reinhard Fromm and George Zandt and Susan L. Beck},
  year={2004}
}
[1] We obtained a 2D crustal model beneath central Chile and western Argentina using apparent Pn phase velocities recorded along an EW trending transect at 30 S. This model is characterized by a thick (65 km) crustal root beneath the High Cordillera, a 60 km thick crust beneath the Precordillera, and a gradual shallowing of Moho depths beneath the Sierras Pampeanas from 55 km in the west to 40 km in the east. Beneath the Sierras Pampeanas, where very little crustal shortening is observed, the… CONTINUE READING
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