Sample 202726
NavDat sample number 50169 · DACITE
Sample
| Sample ID | 202726 |
|---|---|
| Rock name | DACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Trachyte |
Location
| Latitude | 46.0697 |
|---|---|
| Longitude | -110.318 |
| 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 | 68.33 | WT% | XRF | |
| AL2O3 | 15.59 | WT% | XRF | |
| FE2O3 | 0.35 | WT% | XRF | |
| FEO | 2.83 | WT% | XRF | |
| MGO | 1.83 | WT% | XRF | |
| CAO | 2.43 | WT% | XRF | |
| NA2O | 3.8 | WT% | XRF | |
| K2O | 4.15 | WT% | XRF | |
| TIO2 | 0.49 | WT% | XRF | |
| P2O5 | 0.16 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| LOI | 2.53 | WT% | XRF | |
| RB | 66 | PPM | EDXRF | |
| SR | 876 | PPM | EDXRF | |
| Y | 12 | PPM | EDXRF | |
| ZR | 113 | PPM | EDXRF | |
| NB | 13 | PPM | EDXRF | |
| BA | 2723 | PPM | EDXRF | |
| LA | 47 | PPM | EDXRF | |
| CE | 60 | PPM | EDXRF | |
| ND | 34 | PPM | EDXRF |