You are browsing the archive for 25 December 2012 - Mountain Beltway.
25 December 2012
Stromatolites of the Green River Formation
The summer before last (2011), I spent some time in Wyoming on an energy resources field trip run by Sheridan College, and one stop we made was to look at “oil shale” (really kerogen-rich marlstone) of the Green River Formation, an Eocene lake deposit in southwestern Wyoming. The oil shale is exposed on the east side of the White Mountain escarpment in the Green River Basin. Here’s the view to …