TY - RPRT TI - Fracture studies in Cretaceous and Paleocene strata in and around the Piceance Basin, Colorado; preliminary results and their bearing on a fracture-controlled natural-gas reservoir at the MWX site AU - E.R. Verbeek AU - M. A. Grout PY - 1984 DO - 10.3133/ofr84156 UR - https://pubs.usgs.gov/publication/ofr84156 ID - ofr84156 ER -