Sample MW976
NavDat sample number 42788 · ANDESITE
Sample
| Sample ID | MW976 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Lava |
Location
| Latitude | 44.7667 |
|---|---|
| Longitude | -110.483 |
| Location | SW Washburn Range |
| State / province | MT/WY |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 53 | 52 | 55 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 62.63 | WT% | XRF | |
| TIO2 | 0.53 | WT% | XRF | |
| AL2O3 | 16.18 | WT% | XRF | |
| FE2O3 | 4.85 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| MGO | 2.33 | WT% | XRF | |
| CAO | 3.19 | WT% | XRF | |
| NA2O | 2.97 | WT% | XRF | |
| K2O | 4.96 | WT% | XRF | |
| P2O5 | 0.21 | WT% | XRF | |
| TOTAL | 97.89 | WT% | XRF | |
| BA | 1585 | PPM | XRF | |
| V | 89 | PPM | XRF | |
| CR | 63 | PPM | XRF | |
| NB | 6 | PPM | XRF | |
| NI | 30 | PPM | XRF | |
| PB | 18 | PPM | XRF | |
| RB | 81 | PPM | XRF | |
| SC | 8 | PPM | XRF | |
| SR | 535 | PPM | XRF | |
| TH | 3 | PPM | XRF | |
| Y | 14 | PPM | XRF | |
| ZR | 162 | PPM | XRF |