TY - RPRT TI - Mineralogy and diagenesis of core samples of Upper Cretaceous sandstones, Twin Arrow Inc. 4-14X C and K well, Piceance Creek basin, northwestern Colorado AU - Paula L. Hansley PY - 1981 DO - 10.3133/ofr81845 UR - https://pubs.usgs.gov/publication/ofr81845 ID - ofr81845 ER -