Sample 202707
NavDat sample number 50162 · ANDESITE
Sample
| Sample ID | 202707 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
Location
| Latitude | 46.0478 |
|---|---|
| Longitude | -110.332 |
| 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 | 60.75 | WT% | XRF | |
| AL2O3 | 16.09 | WT% | XRF | |
| FE2O3 | 0.62 | WT% | XRF | |
| FEO | 5.03 | WT% | XRF | |
| MGO | 3.3 | WT% | XRF | |
| CAO | 4.57 | WT% | XRF | |
| NA2O | 4.76 | WT% | XRF | |
| K2O | 3.2 | WT% | XRF | |
| TIO2 | 1.22 | WT% | XRF | |
| P2O5 | 0.38 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| LOI | 1.59 | WT% | XRF | |
| RB | 67 | PPM | EDXRF | |
| SR | 687 | PPM | EDXRF | |
| Y | 21 | PPM | EDXRF | |
| ZR | 180 | PPM | EDXRF | |
| NB | 22 | PPM | EDXRF | |
| BA | 1754 | PPM | EDXRF | |
| LA | 66 | PPM | EDXRF | |
| CE | 85 | PPM | EDXRF | |
| ND | 55 | PPM | EDXRF |