Sample J22A
NavDat sample number 21692 · ANDESITE
Sample
| Sample ID | J22A |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 28.33 |
|---|---|
| Longitude | -107.87 |
| Location | Tomochic volcanic center |
| State / province | CHIHUAHUA |
| Formation | Carrizo andesite |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 40 | 38 | 42 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SR87_SR86 | 0.7061 | TIMS |