Sample SFO 12
NavDat sample number 4118 · ANDESITE
Sample
| Sample ID | SFO 12 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Andesite with high SiO2, San Francisco Mountain, NW 1/4, NE 1/4, sec 32 T23N R7E, Humphreys Peak 7.5' quadrangle Arizona |
Location
| Latitude | 35.3394 |
|---|---|
| Longitude | -111.676 |
| State / province | Arizona |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 1.9 | 0.8 | 3 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 59.2 | WT% | RAPID_ROCK | |
| TIO2 | 1.05 | WT% | RAPID_ROCK | |
| AL2O3 | 16.9 | WT% | RAPID_ROCK | |
| FE2O3 | 3.2 | WT% | RAPID_ROCK | |
| FEO | 3.5 | WT% | RAPID_ROCK | |
| MNO | 0.14 | WT% | RAPID_ROCK | |
| MGO | 2.2 | WT% | RAPID_ROCK | |
| CAO | 4.4 | WT% | RAPID_ROCK | |
| NA2O | 5.5 | WT% | RAPID_ROCK | |
| K2O | 2.5 | WT% | RAPID_ROCK | |
| P2O5 | 0.47 | WT% | RAPID_ROCK | |
| H2O | 0.19 | WT% | RAPID_ROCK | |
| H2O_MINUS | 0.48 | WT% | RAPID_ROCK | |
| CO2 | 0 | WT% | RAPID_ROCK | |
| TOTAL | 99.73 | WT% | RAPID_ROCK | |
| SR | 690 | PPM | TIMS | |
| SR87_SR86 | 0.7031 | TIMS |