Sample 202734
NavDat sample number 50170 · DACITE
Sample
| Sample ID | 202734 |
|---|---|
| Rock name | DACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Trachyte |
Location
| Latitude | 46.1098 |
|---|---|
| Longitude | -110.387 |
| 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 | 63.34 | WT% | XRF | |
| AL2O3 | 17.04 | WT% | XRF | |
| FE2O3 | 0.54 | WT% | XRF | |
| FEO | 4.35 | WT% | XRF | |
| MGO | 1.57 | WT% | XRF | |
| CAO | 4.01 | WT% | XRF | |
| NA2O | 4.66 | WT% | XRF | |
| K2O | 3.38 | WT% | XRF | |
| TIO2 | 0.56 | WT% | XRF | |
| P2O5 | 0.42 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| LOI | 0.72 | WT% | XRF | |
| RB | 72 | PPM | EDXRF | |
| SR | 1249 | PPM | EDXRF | |
| Y | 31 | PPM | EDXRF | |
| ZR | 210 | PPM | EDXRF | |
| NB | 24 | PPM | EDXRF | |
| BA | 2619 | PPM | EDXRF | |
| LA | 73 | PPM | EDXRF | |
| CE | 129 | PPM | EDXRF | |
| ND | 29 | PPM | EDXRF |