TY - RPRT TI - Coal geology of the Paleocene-Eocene Calvert Bluff Formation (Wilcox Group) and the Eocene Manning Formation (Jackson Group) in east-central Texas: Field trip guidebook for the Society for Organic Petrology, Twelfth Annual Meeting, The Woodlands, Texas, August 30, 1995 AU - Peter D. Warwick AU - Sharon S. Crowley PY - 1995 DO - 10.3133/ofr95595 UR - https://pubs.usgs.gov/publication/ofr95595 ID - ofr95595 ER -