Large-scale cross-beds in the Paleogene Coalmont Formation
By Geosciences and Environmental Change Science Center
2014 (approx.)
Detailed Description
Large-scale cross-beds in the Paleogene Coalmont Formation southwest of Walden, Colorado, formed as a delta complex within a persistent lake. Sediments were chiefly eroded from the Proterozoic basement of the Park Range block to the west and transported a short distance to the Colorado Headwaters Basin.