TY - RPRT TI - Core porosity, permeability, and vitrinite reflectance data from the Lower Cretaceous J sandstone in 141 Denver basin coreholes AU - Debra K. Higley PY - 1988 DO - 10.3133/ofr88527a UR - https://pubs.usgs.gov/publication/ofr88527A ID - ofr88527A ER -