Sample 202725
NavDat sample number 50168 · ANDESITE
Sample
| Sample ID | 202725 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
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 | 51.06 | WT% | XRF | |
| AL2O3 | 14.56 | WT% | XRF | |
| FE2O3 | 1.37 | WT% | XRF | |
| FEO | 11.12 | WT% | XRF | |
| MGO | 6.61 | WT% | XRF | |
| CAO | 6.83 | WT% | XRF | |
| NA2O | 3.3 | WT% | XRF | |
| K2O | 2.15 | WT% | XRF | |
| TIO2 | 2.08 | WT% | XRF | |
| P2O5 | 0.74 | WT% | XRF | |
| MNO | 0.19 | WT% | XRF | |
| LOI | 1.536 | WT% | XRF | |
| RB | 70 | PPM | EDXRF | |
| SR | 798 | PPM | EDXRF | |
| Y | 30 | PPM | EDXRF | |
| ZR | 152 | PPM | EDXRF | |
| NB | 20 | PPM | EDXRF | |
| BA | 868 | PPM | EDXRF | |
| LA | 56 | PPM | EDXRF | |
| CE | 91 | PPM | EDXRF | |
| ND | 50 | PPM | EDXRF |