TY  - RPRT
TI  - X-ray spectrometric major-element analyses of tephra samples from the May 18, 1980 eruption of Mt. St. Helens : samples collected from Washington, Idaho, and Montana
AU  - Joseph E. Taggart
AU  - James S. Wahlberg
AU  - Howard E. Taylor
PY  - 1980
DO  - 10.3133/ofr801130
UR  - https://pubs.usgs.gov/publication/ofr801130
ID  - ofr801130
ER  -