New Members of the Gering Formation (Miocene) in Western Nebraska, Including a Geological Map of Wildcat Ridge and Related Outliers (GSP-18)

Vondra, C. F., Schultz, C. B., Stout, T. M., 1969. New Members of the Gering Formation (Miocene) in Western Nebraska, Including a Geological Map of Wildcat Ridge and Related Outliers (GSP-18): 18 pp., size 6" x 9". Description: As a result of the Gering field conference (August 20-23, 1967), definition of units assigned formal names to the two members of the Gering Formation and to certain beds within them, now recognized at many localities in the Wildcat Ridge and Pine Ridge of western Nebraska. Elsewhere in western Nebraska and adjacent areas, where division has not been attempted, the Gering must be considered undifferentiated. The division of the Gering into two members, by emphasizing certain key beds and horizions, should aid in establishing regional correlations. Out of print, unbound copy available.