TY - RPRT TI - Chemical analyses of selected Tertiary and Quaternary volcanic rocks, Cascade Range, Washington AU - K.M. Ort AU - R. W. Tabor AU - Virgil A. Frizzell PY - 1983 DO - 10.3133/ofr831 UR - https://pubs.usgs.gov/publication/ofr831 ID - ofr831 ER -