TY - RPRT TI - Chemical analyses of rocks and glass separates from Crater Lake National Park and vicinity, Oregon AU - P. E. Bruggman AU - C. R. Bacon AU - P. J. Aruscavage AU - R.W. Lerner AU - L.J. Schwarz AU - K. C. Stewart PY - 1987 DO - 10.3133/ofr8757 UR - https://pubs.usgs.gov/publication/ofr8757 ID - ofr8757 ER -