TY - RPRT TI - Porosity trends of the Lower Cretaceous J Sandstone, Denver Basin, Colorado AU - J. W. Schmoker AU - D.K. Higley PY - 1991 DO - 10.1306/d4267802-2b26-11d7-8648000102c1865d UR - https://pubs.usgs.gov/publication/70016399 ID - 70016399 ER -