Sample 202724
NavDat sample number 50167 · ANDESITE
Sample
| Sample ID | 202724 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
Location
| Latitude | 46.0654 |
|---|---|
| Longitude | -110.321 |
| 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 | 58.68 | WT% | XRF | |
| AL2O3 | 16.48 | WT% | XRF | |
| FE2O3 | 0.78 | WT% | XRF | |
| FEO | 6.34 | WT% | XRF | |
| MGO | 3.51 | WT% | XRF | |
| CAO | 5.37 | WT% | XRF | |
| NA2O | 4.12 | WT% | XRF | |
| K2O | 2.81 | WT% | XRF | |
| TIO2 | 1.45 | WT% | XRF | |
| P2O5 | 0.38 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| LOI | 0.5 | WT% | XRF | |
| RB | 56 | PPM | EDXRF | |
| SR | 867 | PPM | EDXRF | |
| Y | 17 | PPM | EDXRF | |
| ZR | 161 | PPM | EDXRF | |
| NB | 23 | PPM | EDXRF | |
| BA | 1687 | PPM | EDXRF | |
| LA | 46 | PPM | EDXRF | |
| CE | 63 | PPM | EDXRF | |
| ND | 37 | PPM | EDXRF |