Sample 202503
NavDat sample number 50138 · DACITE
Sample
| Sample ID | 202503 |
|---|---|
| Rock name | DACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Trachyte |
Location
| Latitude | 46.0404 |
|---|---|
| Longitude | -110.35 |
| Location | Crazy Mountains |
| State / province | Montana |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 50 | 49.5 | 50.5 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 67.02 | WT% | XRF | |
| AL2O3 | 16.17 | WT% | XRF | |
| FE2O3 | 0.37 | WT% | XRF | |
| FEO | 3.01 | WT% | XRF | |
| MGO | 1.12 | WT% | XRF | |
| CAO | 2.41 | WT% | XRF | |
| NA2O | 4.36 | WT% | XRF | |
| K2O | 4.61 | WT% | XRF | |
| TIO2 | 0.64 | WT% | XRF | |
| P2O5 | 0.21 | WT% | XRF | |
| MNO | 0.07 | WT% | XRF | |
| LOI | 0.33 | WT% | XRF | |
| RB | 125 | PPM | EDXRF | |
| SR | 493 | PPM | EDXRF | |
| Y | 14 | PPM | EDXRF | |
| ZR | 328 | PPM | EDXRF | |
| NB | 16 | PPM | EDXRF | |
| BA | 1341 | PPM | EDXRF | |
| LA | 49 | PPM | EDXRF | |
| CE | 86 | PPM | EDXRF | |
| ND | 28 | PPM | EDXRF |