Sample 202621
NavDat sample number 50157 · ANDESITE
Sample
| Sample ID | 202621 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
Location
| Latitude | 46.1232 |
|---|---|
| Longitude | -110.271 |
| 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 | 61.17 | WT% | XRF | |
| AL2O3 | 17.18 | WT% | XRF | |
| FE2O3 | 0.66 | WT% | XRF | |
| FEO | 5.38 | WT% | XRF | |
| MGO | 2.35 | WT% | XRF | |
| CAO | 4.56 | WT% | XRF | |
| NA2O | 4.46 | WT% | XRF | |
| K2O | 2.92 | WT% | XRF | |
| TIO2 | 0.76 | WT% | XRF | |
| P2O5 | 0.45 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| LOI | 1.55 | WT% | XRF | |
| RB | 56 | PPM | EDXRF | |
| SR | 1018 | PPM | EDXRF | |
| Y | 26 | PPM | EDXRF | |
| ZR | 194 | PPM | EDXRF | |
| NB | 18 | PPM | EDXRF | |
| BA | 2263 | PPM | EDXRF | |
| LA | 64 | PPM | EDXRF | |
| CE | 112 | PPM | EDXRF | |
| ND | 39 | PPM | EDXRF |