Analytical method: UNKNOWN
| Technique | UNKNOWN |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Institution | Unknown, Unknown, USA |
| Reference | Demant, Alain (1979) Vulcanologia y petrografia del sector occidental del Eje Neovolcanico. Revista - Instituto de Geologia. 3; 1, Pages 39-57. 1979. |
Samples analysed with this method
275, 276, 277, 278, 279, 289, 331, 496, 508, 510, 517, 518, 519, 520, 521, 524, 525, 528, 547, 549, 550, 551, 558, 559, 561, 602, 603, 604, 608, 609, 610, 611, 612, 615, 616, 617, 618, 619, 620, 621, 625, 627, 630, 633, 634, 635, 636, 638, 650, 653, 657, 659, 661, 662, M40, M42