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Sample No Sample Name
NavDat sample number 29426 · BASALTIC ANDESITE
Sample
| Sample ID | No Sample Name |
|---|
| Rock name | BASALTIC ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 29.866 |
|---|
| Longitude | -109 |
|---|
| Location | Chih.-Sonora boundary |
|---|
| State / province | SONORA |
|---|
| Country | Mexico |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 28.5 |
|
28.5 |
28.5 |
|
|
Analyses
No chemical analyses are stored for this sample.
References
- Montigny, R; Demant, A; Delpretti, P; Piguet, P; Cocheme, J J (1987) Chronologie K/A des sequences volcaniques tertiaires du Nord de la Sierra Madre Occidental Mexique. K/Ar geochronology of the Tertiary volcanic sequences of the northern portion of the Sierra Madre Occidental, Mexico. Comptes Rendus de l'Academie des Sciences, Serie 2, Mecanique, Physique, Chimie, Sciences de l'Univers, Sciences de la Terre, vol.304, no.16, pp.987-992, 1987
