Analytical method: EPMA
| Technique | EPMA |
|---|---|
| Material | MINERAL |
| Mineral | AMPHIBOLE |
| Institution | RICE UNIVERSITY, DEPARTMENT OF GEOLOGY AND GEOPHYSICS, USA |
| Reference | Smith, Diane R; Leeman, William P (1993) The origin of Mount St. Helens andesites. Journal of Volcanology and Geothermal Research. 55; 3-4, Pages 271-303. 1993. |