Sample 202604
NavDat sample number 50149 · ANDESITE
Sample
| Sample ID | 202604 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
Location
| Latitude | 46.0103 |
|---|---|
| Longitude | -110.305 |
| 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 | 57.44 | WT% | XRF | |
| AL2O3 | 17.71 | WT% | XRF | |
| FE2O3 | 0.77 | WT% | XRF | |
| FEO | 6.25 | WT% | XRF | |
| MGO | 2.27 | WT% | XRF | |
| CAO | 5.41 | WT% | XRF | |
| NA2O | 4.81 | WT% | XRF | |
| K2O | 3.27 | WT% | XRF | |
| TIO2 | 1.17 | WT% | XRF | |
| P2O5 | 0.77 | WT% | XRF | |
| MNO | 0.13 | WT% | XRF | |
| LOI | 2.56 | WT% | XRF | |
| RB | 59 | PPM | EDXRF | |
| SR | 1312 | PPM | EDXRF | |
| Y | 21 | PPM | EDXRF | |
| ZR | 264 | PPM | EDXRF | |
| NB | 30 | PPM | EDXRF | |
| BA | 1924 | PPM | EDXRF | |
| LA | 67 | PPM | EDXRF | |
| CE | 121 | PPM | EDXRF | |
| ND | 66 | PPM | EDXRF |