Sample 12A
NavDat sample number 76268 · DIORITE
Sample
| Sample ID | 12A |
|---|---|
| Rock name | DIORITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | quartz diorite |
Location
| Latitude | 46.6997 |
|---|---|
| Longitude | -112.513 |
| Location | South of Black Mountain |
| State / province | Montana |
| Pluton | Boulder batholith, Union Granodiorite |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 78.2 | 77.4 | 79 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 52.36 | WT% | XRF | |
| AL2O3 | 15.2 | WT% | XRF | |
| FEO | 10.34 | WT% | XRF | |
| MGO | 6.86 | WT% | XRF | |
| CAO | 9.46 | WT% | XRF | |
| NA2O | 2.42 | WT% | FPHOT | |
| K2O | 2.14 | WT% | XRF | |
| TIO2 | 0.86 | WT% | XRF | |
| P2O5 | 0.36 | WT% | XRF | |
| NB | 8.6 | PPM | XRF | |
| Y | 22.9 | PPM | XRF | |
| ZR | 127.8 | PPM | XRF | |
| SR | 621.3 | PPM | XRF | |
| RB | 49.9 | PPM | XRF | |
| SM | 4.61 | PPM | TIMS_ID | |
| ND | 23.66 | PPM | TIMS_ID | |
| SM147_ND144 | 0.1187 | TIMS_ID | ||
| ND143_ND144 | 0.511475 | TIMS_ID | ||
| SR87_SR86 | 0.70758 | TIMS_ID | ||
| RB87_SR86 | 0.2326 | TIMS_ID | ||
| PB206_PB204 | 17.535 | TIMS | ||
| PB207_PB204 | 15.51 | TIMS | ||
| PB208_PB204 | 38.072 | TIMS |