Sample 202718
NavDat sample number 50166 · ANDESITE
Sample
| Sample ID | 202718 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
Location
| Latitude | 46.0482 |
|---|---|
| Longitude | -110.338 |
| 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 | 61.66 | WT% | XRF | |
| AL2O3 | 15.73 | WT% | XRF | |
| FE2O3 | 0.59 | WT% | XRF | |
| FEO | 4.75 | WT% | XRF | |
| MGO | 3.96 | WT% | XRF | |
| CAO | 4.74 | WT% | XRF | |
| NA2O | 4.24 | WT% | XRF | |
| K2O | 2.89 | WT% | XRF | |
| TIO2 | 0.99 | WT% | XRF | |
| P2O5 | 0.36 | WT% | XRF | |
| MNO | 0.09 | WT% | XRF | |
| LOI | 2.79 | WT% | XRF | |
| RB | 50 | PPM | EDXRF | |
| SR | 823 | PPM | EDXRF | |
| Y | 16 | PPM | EDXRF | |
| ZR | 185 | PPM | EDXRF | |
| NB | 23 | PPM | EDXRF | |
| BA | 1988 | PPM | EDXRF | |
| LA | 55 | PPM | EDXRF | |
| CE | 84 | PPM | EDXRF | |
| ND | 28 | PPM | EDXRF |