Sample 202738
NavDat sample number 50174 · ANDESITE
Sample
| Sample ID | 202738 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
Location
| Latitude | 46.1129 |
|---|---|
| Longitude | -110.392 |
| 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 | 55.74 | WT% | XRF | |
| AL2O3 | 16.03 | WT% | XRF | |
| FE2O3 | 0.92 | WT% | XRF | |
| FEO | 7.45 | WT% | XRF | |
| MGO | 4.51 | WT% | XRF | |
| CAO | 5.67 | WT% | XRF | |
| NA2O | 5.05 | WT% | XRF | |
| K2O | 2.76 | WT% | XRF | |
| TIO2 | 1.12 | WT% | XRF | |
| P2O5 | 0.62 | WT% | XRF | |
| MNO | 0.15 | WT% | XRF | |
| LOI | 2.14 | WT% | XRF | |
| RB | 50 | PPM | EDXRF | |
| SR | 991 | PPM | EDXRF | |
| Y | 22 | PPM | EDXRF | |
| ZR | 164 | PPM | EDXRF | |
| NB | 19 | PPM | EDXRF | |
| BA | 2019 | PPM | EDXRF | |
| LA | 59 | PPM | EDXRF | |
| CE | 120 | PPM | EDXRF | |
| ND | 47 | PPM | EDXRF |