Base if Morrison formation near Alcova, a soft friable gray sandstone, 60 feet thick, resting unconformably on marine Sundance beds. Natrona County, Wyoming. 1922.
Dates
Date Taken
1922
Summary
Base if Morrison formation near Alcova, a soft friable gray sandstone, 60 feet thick, resting unconformably on marine Sundance beds and overlain by typical variegated shale of the Morrison formation. Natrona County, Wyoming. 1922. Plate 28-A, with graphics, in U.S. Geological Survey. Professional paper 149. 1927.
Summary
Base if Morrison formation near Alcova, a soft friable gray sandstone, 60 feet thick, resting unconformably on marine Sundance beds and overlain by typical variegated shale of the Morrison formation. Natrona County, Wyoming. 1922. Plate 28-A, with graphics, in U.S. Geological Survey. Professional paper 149. 1927.
This USGS product is considered to be in the U.S. public domain. For further information on the USGS Information Policies and Instructions, refer to the Copyrights and Credits section on this web page: http://www.usgs.gov/laws/info_policies.html