TY - RPRT TI - Mineral chemistry of the Pioneer Batholith, Beaverhead County, southwestern Montana; microprobe data tables for feldspar, amphibole, mica, pyroxene, and necessary minerals AU - J. M. Hammarstrom PY - 1990 DO - 10.3133/ofr90652 UR - https://pubs.usgs.gov/publication/ofr90652 ID - ofr90652 ER -