TY - RPRT TI - Acid-extractable alumina and water-soluble sodium analyses and histograms of Eocene Green River Formation from U.S. Geological Survey coreholes CR-1 and CR-2, Piceance Creek basin, Rio Blanco County, Colorado AU - John R. Donnell AU - Marjorie C. Smith PY - 1980 DO - 10.3133/ofr80663 UR - https://pubs.usgs.gov/publication/ofr80663 ID - ofr80663 ER -