TY - RPRT TI - Chemistry of zeolites and zeolitic tuffs from a Pliocene lacustrine deposit near Durkee, Baker County, Oregon AU - Richard A. Sheppard AU - Arthur J. Gude PY - 1980 DO - 10.3133/ofr801260 UR - https://pubs.usgs.gov/publication/ofr801260 ID - ofr801260 ER -