TY - RPRT TI - Allanite-bearing calc-silicate rocks, southern Bighorn Mountains, Wyoming; geologic setting and resources of thorium, uranium, and rare-earth elements AU - Theodore J. Armbrustmacher AU - Kenneth A. Sargent PY - 1982 DO - 10.3133/ofr82298 UR - https://pubs.usgs.gov/publication/ofr82298 ID - ofr82298 ER -