Sample 21
NavDat sample number 10788 · ANDESITE
Sample
| Sample ID | 21 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 38 |
|---|---|
| Longitude | -106 |
| Location | Bonanza Caldera |
| State / province | Colorado |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27 | 27 | 40 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 61.74 | WT% | ICP | |
| AL2O3 | 17.3 | WT% | ICP | |
| TIO2 | 0.8 | WT% | ICP | |
| FE2O3 | 2.35 | WT% | ICP | |
| FEO | 3.41 | WT% | ICP | |
| MNO | 0.08 | WT% | ICP | |
| MGO | 2.06 | WT% | ICP | |
| CAO | 4.06 | WT% | ICP | |
| NA2O | 3.82 | WT% | ICP | |
| K2O | 4.09 | WT% | ICP | |
| P2O5 | 0.29 | WT% | ICP | |
| H2O | 1.72 | WT% | ICP | |
| CO2 | 0.03 | WT% | ICP | |
| CD | 5.84 | PPM | ICP | |
| CO | 338 | PPM | ICP | |
| CR | 20 | PPM | ICP | |
| CU | 89 | PPM | ICP | |
| MO | 58.4 | PPM | ICP | |
| NI | 22 | PPM | ICP | |
| PB | 35 | PPM | ICP | |
| SB | 35 | PPM | ICP | |
| V | 292 | PPM | ICP | |
| ZN | 127 | PPM | ICP |