Sample MW978
NavDat sample number 42791 · DACITE
Sample
| Sample ID | MW978 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| 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 | 64.29 | WT% | XRF | |
| TIO2 | 0.42 | WT% | XRF | |
| AL2O3 | 15.69 | WT% | XRF | |
| FE2O3 | 4.52 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| MGO | 2.98 | WT% | XRF | |
| CAO | 3.85 | WT% | XRF | |
| NA2O | 3.23 | WT% | XRF | |
| K2O | 4.39 | WT% | XRF | |
| P2O5 | 0.17 | WT% | XRF | |
| TOTAL | 99.6 | WT% | XRF | |
| BA | 2013 | PPM | XRF | |
| V | 80 | PPM | XRF | |
| CR | 104 | PPM | XRF | |
| NB | 6 | PPM | XRF | |
| NI | 48 | PPM | XRF | |
| PB | 19 | PPM | XRF | |
| RB | 55 | PPM | XRF | |
| SC | 10 | PPM | XRF | |
| SR | 749 | PPM | XRF | |
| TH | 4 | PPM | XRF | |
| Y | 9 | PPM | XRF | |
| ZR | 132 | PPM | XRF |