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RMG, Spring 2009, 44.1

In this issue:

  • Concurrent growth of uplifts with dissimilar orientations in the southern Green River Basin, Wyoming: Implications for Paleocene–Eocene patterns of foreland shortening
  • 40Ar/39Ar dates for the Spanish Peaks intrusions in south-central Colorado
  • Framework for stratigraphic analysis of Pliocene fossiliferous deposits at Hagerman Fossil Beds National Monument, Idaho
  • Quaternary incision rates and drainage evolution of the Uncompahgre and Gunnison Rivers, western Colorado, as calibrated by the Lava Creek B ash