Sample BP-S36a
NavDat sample number 30351 · SHONKINITE
Sample
| Sample ID | BP-S36a |
|---|---|
| Rock name | SHONKINITE |
| Rock type | PLUTONIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | aegerine-pseudoleucite shonkinite |
Location
| Latitude | 48.173 |
|---|---|
| Longitude | -109.431 |
| Location | Bearpaw Mountains |
| State / province | Montana |
| Volcanic field | Bearpaw Mountains igneous complex, Montana Alkalic Province |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 48 | 42 | 54 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 49.88 | WT% | XRF | |
| AL2O3 | 13.47 | WT% | XRF | |
| TIO2 | 1.146 | WT% | XRF | |
| FEOT | 11.83 | WT% | XRF | |
| MNO | 0.349 | WT% | XRF | |
| CAO | 9.32 | WT% | XRF | |
| MGO | 3.65 | WT% | XRF | |
| K2O | 0.34 | WT% | XRF | |
| NA2O | 9.39 | WT% | XRF | |
| P2O5 | 0.623 | WT% | XRF | |
| NI | 53 | PPM | XRF | |
| CR | 80 | PPM | XRF | |
| SC | 19 | PPM | XRF | |
| V | 452 | PPM | XRF | |
| BA | 8577 | PPM | XRF | |
| RB | 23 | PPM | XRF | |
| SR | 2581 | PPM | XRF | |
| ZR | 457 | PPM | XRF | |
| Y | 39 | PPM | XRF | |
| NB | 44.8 | PPM | XRF | |
| GA | 11 | PPM | XRF | |
| CU | 213 | PPM | XRF | |
| ZN | 137 | PPM | XRF |