TY - RPRT TI - Comparison of the chemical composition of mineralized and unmineralized (barren) samples of the Morrison Formation in the Ambrosia Lake uranium area, New Mexico AU - Charles S. Spirakis AU - Charles Thomas Pierson AU - Harry Clifford Granger PY - 1981 DO - 10.3133/ofr81508 UR - https://pubs.usgs.gov/publication/ofr81508 ID - ofr81508 ER -