Sample BP-S20
NavDat sample number 30343 · SHONKINITE
Sample
| Sample ID | BP-S20 |
|---|---|
| Rock name | SHONKINITE |
| Rock type | PLUTONIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | mafic olivine-pseudoleucite shonkinite |
Location
| Latitude | 48.1652 |
|---|---|
| Longitude | -109.685 |
| 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 | 48.08 | WT% | XRF | |
| AL2O3 | 7.7 | WT% | XRF | |
| TIO2 | 0.485 | WT% | XRF | |
| FEOT | 8.11 | WT% | XRF | |
| MNO | 0.166 | WT% | XRF | |
| CAO | 10.8 | WT% | XRF | |
| MGO | 16.62 | WT% | XRF | |
| K2O | 6.17 | WT% | XRF | |
| NA2O | 0.64 | WT% | XRF | |
| P2O5 | 1.226 | WT% | XRF | |
| NI | 448 | PPM | XRF | |
| CR | 630 | PPM | XRF | |
| SC | 38 | PPM | XRF | |
| V | 110 | PPM | XRF | |
| BA | 1802 | PPM | XRF | |
| RB | 277 | PPM | XRF | |
| SR | 884 | PPM | XRF | |
| ZR | 66 | PPM | XRF | |
| Y | 21 | PPM | XRF | |
| NB | 7 | PPM | XRF | |
| GA | 8 | PPM | XRF | |
| CU | 30 | PPM | XRF | |
| ZN | 68 | PPM | XRF |