Sample 202515
NavDat sample number 50143 · ANDESITE
Sample
| Sample ID | 202515 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
Location
| Latitude | 46.0738 |
|---|---|
| Longitude | -110.422 |
| 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 | 59.77 | WT% | XRF | |
| AL2O3 | 17.86 | WT% | XRF | |
| FE2O3 | 0.7 | WT% | XRF | |
| FEO | 5.7 | WT% | XRF | |
| MGO | 2.08 | WT% | XRF | |
| CAO | 5.12 | WT% | XRF | |
| NA2O | 4.19 | WT% | XRF | |
| K2O | 3.06 | WT% | XRF | |
| TIO2 | 0.89 | WT% | XRF | |
| P2O5 | 0.5 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| LOI | 1.79 | WT% | XRF | |
| RB | 69 | PPM | EDXRF | |
| SR | 925 | PPM | EDXRF | |
| Y | 31 | PPM | EDXRF | |
| ZR | 182 | PPM | EDXRF | |
| NB | 17 | PPM | EDXRF | |
| BA | 1674 | PPM | EDXRF | |
| LA | 53 | PPM | EDXRF | |
| CE | 103 | PPM | EDXRF | |
| ND | 60 | PPM | EDXRF |