Sample 202705
NavDat sample number 50161 · DACITE
Sample
| Sample ID | 202705 |
|---|---|
| Rock name | DACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Trachyte |
Location
| Latitude | 46.0525 |
|---|---|
| Longitude | -110.327 |
| 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 | 69.3 | WT% | XRF | |
| AL2O3 | 15.39 | WT% | XRF | |
| FE2O3 | 0.28 | WT% | XRF | |
| FEO | 2.27 | WT% | XRF | |
| MGO | 1.4 | WT% | XRF | |
| CAO | 3.63 | WT% | XRF | |
| NA2O | 3.19 | WT% | XRF | |
| K2O | 3.91 | WT% | XRF | |
| TIO2 | 0.45 | WT% | XRF | |
| P2O5 | 0.15 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| LOI | 5.21 | WT% | XRF | |
| RB | 55 | PPM | EDXRF | |
| SR | 665 | PPM | EDXRF | |
| Y | 8 | PPM | EDXRF | |
| ZR | 113 | PPM | EDXRF | |
| NB | 12 | PPM | EDXRF | |
| BA | 2658 | PPM | EDXRF | |
| LA | 47 | PPM | EDXRF | |
| CE | 51 | PPM | EDXRF | |
| ND | 37 | PPM | EDXRF |