Sample 20
NavDat sample number 10787 · ANDESITE
Sample
| Sample ID | 20 |
|---|---|
| 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 | 60.84 | WT% | ICP | |
| AL2O3 | 17.95 | WT% | ICP | |
| TIO2 | 0.83 | WT% | ICP | |
| FE2O3 | 2.4 | WT% | ICP | |
| FEO | 3.17 | WT% | ICP | |
| MNO | 0.09 | WT% | ICP | |
| MGO | 1.75 | WT% | ICP | |
| CAO | 4.01 | WT% | ICP | |
| BAO | 0.18 | WT% | ICP | |
| NA2O | 3.96 | WT% | ICP | |
| K2O | 4.46 | WT% | ICP | |
| P2O5 | 0.35 | WT% | ICP | |
| H2O | 2.59 | WT% | ICP | |
| CO2 | 0.08 | WT% | ICP | |
| CD | 1 | PPM | ICP | |
| CO | 20 | PPM | ICP | |
| CR | 29 | PPM | ICP | |
| CU | 18 | PPM | ICP | |
| MO | 1 | PPM | ICP | |
| NI | 49 | PPM | ICP | |
| PB | 30 | PPM | ICP | |
| SB | 168 | PPM | ICP | |
| V | 178 | PPM | ICP | |
| ZN | 100 | PPM | ICP |