TY - RPRT TI - The isotopic and chemical evolution of Mount St. Helens AU - A. N. Halliday AU - A.E. Fallick AU - A.P. Dickin AU - A.B. Mackenzie AU - W.E. Stephens AU - W. Hildreth PY - 1983 DO - 10.1016/0012-821x(83)90040-7 UR - https://pubs.usgs.gov/publication/70011362 ID - 70011362 ER -