TY - RPRT TI - Petrology of arkosic sandstones, Pennsylvanian Minturn Formation and Pennsylvanian and Permian Sangre de Cristo Formation, Sangre de Cristo Range, Colorado - data and preliminary interpretations AU - D. A. Lindsey PY - 2000 DO - 10.3133/ofr00474 UR - https://pubs.usgs.gov/publication/ofr00474 ID - ofr00474 ER -