Sample 202735
NavDat sample number 50171 · ANDESITE
Sample
| Sample ID | 202735 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
Location
| Latitude | 46.1098 |
|---|---|
| Longitude | -110.387 |
| 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 | 55.2 | WT% | XRF | |
| AL2O3 | 17.29 | WT% | XRF | |
| FE2O3 | 0.88 | WT% | XRF | |
| FEO | 7.11 | WT% | XRF | |
| MGO | 4.45 | WT% | XRF | |
| CAO | 7.4 | WT% | XRF | |
| NA2O | 3.39 | WT% | XRF | |
| K2O | 2.48 | WT% | XRF | |
| TIO2 | 1.24 | WT% | XRF | |
| P2O5 | 0.42 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| LOI | 1.84 | WT% | XRF | |
| RB | 51 | PPM | EDXRF | |
| SR | 1011 | PPM | EDXRF | |
| Y | 23 | PPM | EDXRF | |
| ZR | 167 | PPM | EDXRF | |
| NB | 17 | PPM | EDXRF | |
| BA | 1536 | PPM | EDXRF | |
| LA | 51 | PPM | EDXRF | |
| CE | 86 | PPM | EDXRF | |
| ND | 35 | PPM | EDXRF |