Sample 202618
NavDat sample number 50154 · ANDESITE
Sample
| Sample ID | 202618 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Trachyandesite |
Location
| Latitude | 46.1208 |
|---|---|
| Longitude | -110.275 |
| 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 | 59.66 | WT% | XRF | |
| AL2O3 | 18.91 | WT% | XRF | |
| FE2O3 | 0.54 | WT% | XRF | |
| FEO | 4.36 | WT% | XRF | |
| MGO | 1.84 | WT% | XRF | |
| CAO | 4.62 | WT% | XRF | |
| NA2O | 4.93 | WT% | XRF | |
| K2O | 3.54 | WT% | XRF | |
| TIO2 | 1.1 | WT% | XRF | |
| P2O5 | 0.43 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| LOI | 2.74 | WT% | XRF | |
| RB | 68 | PPM | EDXRF | |
| SR | 925 | PPM | EDXRF | |
| Y | 22 | PPM | EDXRF | |
| ZR | 225 | PPM | EDXRF | |
| NB | 21 | PPM | EDXRF | |
| BA | 1960 | PPM | EDXRF | |
| LA | 79 | PPM | EDXRF | |
| CE | 114 | PPM | EDXRF | |
| ND | 40 | PPM | EDXRF |