Analytical method: INAA
| Technique | INAA |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Institution | USGS RESTON, RESTON, VA 22092, USA |
| Reference | MacDonald, R; Upton, B G J; Collerson, K D; Hearn, B C, Jr; James, D (1992) Potassic mafic lavas of the Bearpaw Mountains, Montana; mineralogy,chemistry, and origin. Journal of Petrology, vol.33, no.2, pp.305-346, Apr 1992 |