✔︎ Secure Shopping

Contributions, Fall 1977, 16.1

In this issue:

  • Independence Mountain thrust fault, North Park Basin, Colorado
  • Rb and Sr concentrations and Sr isotope ratios in the Preacher Creek ultramafic intrusion, Wyoming
  • Glacial geology of the Lake Marie area, Medicine Bow Mountains, Wyoming
  • Late Cenozoic grasses, borages, and hackberries from southwestern Nebraska
  • Determining fluvial channel patterns from stratification style; a Triassic example from the Colorado Plateau
  • An addition to the known geologic range of the Permian pelecypod Oriocrassatella