Sample 13A
NavDat sample number 76271 · GABBRO
Sample
| Sample ID | 13A |
|---|---|
| Rock name | GABBRO |
| Rock type | PLUTONIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | gabbro |
Location
| Latitude | 46.9875 |
|---|---|
| Longitude | -112.355 |
| Location | South of Rogers Pass |
| State / province | Montana |
| Pluton | Boulder batholith northern outlier |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 77 | 72 | 82 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 48.88 | WT% | XRF | |
| AL2O3 | 11.21 | WT% | XRF | |
| FEO | 22.05 | WT% | XRF | |
| MGO | 2.42 | WT% | XRF | |
| CAO | 7.86 | WT% | XRF | |
| NA2O | 2.19 | WT% | FPHOT | |
| K2O | 1.09 | WT% | XRF | |
| TIO2 | 3.43 | WT% | XRF | |
| P2O5 | 0.87 | WT% | XRF | |
| NB | 17.5 | PPM | XRF | |
| Y | 72.2 | PPM | XRF | |
| ZR | 238.6 | PPM | XRF | |
| SR | 160 | PPM | XRF | |
| RB | 52.1 | PPM | XRF | |
| SM | 11.23 | PPM | TIMS_ID | |
| ND | 41.37 | PPM | TIMS_ID | |
| SM147_ND144 | 0.1641 | TIMS_ID | ||
| ND143_ND144 | 0.512631 | TIMS_ID | ||
| SR87_SR86 | 0.71632 | TIMS_ID | ||
| RB87_SR86 | 0.9434 | TIMS_ID | ||
| PB206_PB204 | 17.894 | TIMS | ||
| PB207_PB204 | 15.544 | TIMS | ||
| PB208_PB204 | 37.484 | TIMS |