Pm
l
P&all
&
Minturn Frm (Pennsylvanian)
Gray pale-yellow and red sandstone grit conglomerate and shale and scattered beds and reefs of carbonate rocks. Includes rocks of Gothic Frm. Thickness near Mintur
3000ft thick on west side of Elk Mt E. and n. of Sawatch Range; contact with overlying Maroon Fm marked by highest marine limestone; west of Sawatch Range and White River Plateau contact is at col
sedimentary
clastic
sandstone
carbonate
mixed gravel-fine grained