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New in the GSA Store

  • Field Guide 55 Field Guide 55:
    Geologic Excursions in Southwestern North America
  • Special Paper 542 Special Paper 542:
    250 Million Years of Earth History in Central Italy: Celebrating 25 Years of the Geological Observatory of Coldigioco
  • Memoir 215 Memoir 215:
    The Edwards Aquifer: The Past, Present, and Future of a Vital Water Resource

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