Analytical method: UNKNOWN
| Technique | UNKNOWN |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Institution | Unknown, Unknown, USA |
| Reference | Luhr, James F; Allan, James F; Carmichael, Ian S E; Nelson, Stephen A; Hasenaka, Toshiaki (1989) Primitive calc-alkaline and alkaline rock types from the western Mexican volcanic belt. Journal of Geophysical Research, B, Solid Earth and Planets. 94; 4, Pages 4515-4530. 1989. |