Sample 202741
NavDat sample number 50177 · ANDESITE
Sample
| Sample ID | 202741 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
Location
| Latitude | 45.9942 |
|---|---|
| Longitude | -110.352 |
| 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 | 58.51 | WT% | XRF | |
| AL2O3 | 16.97 | WT% | XRF | |
| FE2O3 | 0.76 | WT% | XRF | |
| FEO | 6.17 | WT% | XRF | |
| MGO | 3.51 | WT% | XRF | |
| CAO | 5.24 | WT% | XRF | |
| NA2O | 4.23 | WT% | XRF | |
| K2O | 3.03 | WT% | XRF | |
| TIO2 | 1.02 | WT% | XRF | |
| P2O5 | 0.45 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| LOI | 1.56 | WT% | XRF | |
| RB | 53 | PPM | EDXRF | |
| SR | 903 | PPM | EDXRF | |
| Y | 22 | PPM | EDXRF | |
| ZR | 205 | PPM | EDXRF | |
| NB | 14 | PPM | EDXRF | |
| BA | 1838 | PPM | EDXRF | |
| LA | 67 | PPM | EDXRF | |
| CE | 79 | PPM | EDXRF | |
| ND | 49 | PPM | EDXRF |