Sample 202742
NavDat sample number 50178 · ANDESITE
Sample
| Sample ID | 202742 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
Location
| Latitude | 45.9856 |
|---|---|
| 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 | 57.01 | WT% | XRF | |
| AL2O3 | 17.51 | WT% | XRF | |
| FE2O3 | 0.83 | WT% | XRF | |
| FEO | 6.76 | WT% | XRF | |
| MGO | 3.04 | WT% | XRF | |
| CAO | 5.18 | WT% | XRF | |
| NA2O | 4.77 | WT% | XRF | |
| K2O | 3.06 | WT% | XRF | |
| TIO2 | 1.25 | WT% | XRF | |
| P2O5 | 0.44 | WT% | XRF | |
| MNO | 0.14 | WT% | XRF | |
| LOI | 1.94 | WT% | XRF | |
| RB | 61 | PPM | EDXRF | |
| SR | 1085 | PPM | EDXRF | |
| Y | 19 | PPM | EDXRF | |
| ZR | 172 | PPM | EDXRF | |
| NB | 21 | PPM | EDXRF | |
| BA | 1810 | PPM | EDXRF | |
| LA | 30 | PPM | EDXRF | |
| CE | 93 | PPM | EDXRF | |
| ND | 10 | PPM | EDXRF |