Sample MW975
NavDat sample number 42793 · DACITE
Sample
| Sample ID | MW975 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Lava |
Location
| Latitude | 44.7667 |
|---|---|
| Longitude | -110.467 |
| 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 | 64.65 | WT% | XRF | |
| TIO2 | 0.5 | WT% | XRF | |
| AL2O3 | 16.19 | WT% | XRF | |
| FE2O3 | 4.56 | WT% | XRF | |
| MNO | 0.07 | WT% | XRF | |
| MGO | 2.63 | WT% | XRF | |
| CAO | 4.42 | WT% | XRF | |
| NA2O | 3.69 | WT% | XRF | |
| K2O | 2.15 | WT% | XRF | |
| P2O5 | 0.2 | WT% | XRF | |
| TOTAL | 99.06 | WT% | XRF | |
| BA | 1349 | PPM | XRF | |
| V | 85 | PPM | XRF | |
| CR | 79 | PPM | XRF | |
| NB | 5 | PPM | XRF | |
| NI | 36 | PPM | XRF | |
| PB | 15 | PPM | XRF | |
| RB | 70 | PPM | XRF | |
| SC | 8 | PPM | XRF | |
| SR | 583 | PPM | XRF | |
| TH | 5 | PPM | XRF | |
| Y | 13 | PPM | XRF | |
| ZR | 183 | PPM | XRF |