Sample 202508
NavDat sample number 50139 · DACITE
Sample
| Sample ID | 202508 |
|---|---|
| Rock name | DACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Trachyte |
Location
| Latitude | 46.0223 |
|---|---|
| Longitude | -110.337 |
| 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 | 59.26 | WT% | XRF | |
| AL2O3 | 17.69 | WT% | XRF | |
| FE2O3 | 0.51 | WT% | XRF | |
| FEO | 4.15 | WT% | XRF | |
| MGO | 2.38 | WT% | XRF | |
| CAO | 6.67 | WT% | XRF | |
| NA2O | 4.14 | WT% | XRF | |
| K2O | 3.57 | WT% | XRF | |
| TIO2 | 1.13 | WT% | XRF | |
| P2O5 | 0.43 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| LOI | 0.16 | WT% | XRF | |
| RB | 53 | PPM | EDXRF | |
| SR | 885 | PPM | EDXRF | |
| Y | 30 | PPM | EDXRF | |
| ZR | 208 | PPM | EDXRF | |
| NB | 22 | PPM | EDXRF | |
| BA | 1611 | PPM | EDXRF | |
| LA | 42 | PPM | EDXRF | |
| CE | 78 | PPM | EDXRF | |
| ND | 59 | PPM | EDXRF |