Sample 81M016
NavDat sample number 18248 · ANDESITE
Sample
| Sample ID | 81M016 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 43.8667 |
|---|---|
| Longitude | -122.519 |
| State / province | Oregon |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 21 | 17 | 25 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 58.09 | WT% | ICP | |
| TIO2 | 1.65 | WT% | ICP | |
| AL2O3 | 15.91 | WT% | ICP | |
| FEOT | 8.87 | WT% | ICP | |
| MNO | 0.18 | WT% | ICP | |
| MGO | 3.19 | WT% | ICP | |
| CAO | 6.99 | WT% | ICP | |
| NA2O | 3.72 | WT% | ICP | |
| K2O | 0.94 | WT% | AAS | |
| P2O5 | 0.46 | WT% | ICP | |
| TOTAL | 99.32 | WT% | ICP | |
| BA | 420 | PPM | ICP | |
| RB | 41 | PPM | XRF | |
| SR | 426 | PPM | XRF | |
| Y | 31 | PPM | XRF | |
| ZR | 188 | PPM | XRF | |
| NB | 12 | PPM | XRF | |
| NI | -10 | PPM | XRF | |
| V | 257 | PPM | ICP | |
| CU | 43 | PPM | XRF | |
| PB | 12 | PPM | XRF | |
| ZN | 99 | PPM | XRF |