Sample IG 39
NavDat sample number 11652 · GRANITE
Sample
| Sample ID | IG 39 |
|---|---|
| Rock name | GRANITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | medium grained, equigranular |
Location
| Latitude | 46.4983 |
|---|---|
| Longitude | -114.365 |
| State / province | Montana |
| Volcanic field | Idaho batholith, Bitterroot lobe |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 62 | 60 | 80 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 66.12 | WT% | XRF | |
| AL2O3 | 16.1 | WT% | XRF | |
| FE2O3T | 3.74 | WT% | XRF | |
| CAO | 2.75 | WT% | XRF | |
| K2O | 4.06 | WT% | XRF | |
| TIO2 | 0.48 | WT% | XRF | |
| NA2O | 3.88 | WT% | EPMA | |
| MGO | 0.89 | WT% | EPMA | |
| LOI | 0.62 | WT% | XRF | |
| TOTAL | 98.65 | WT% | XRF | |
| ZR | 327 | PPM | XRF | |
| NB | 13 | PPM | XRF | |
| Y | 11 | PPM | XRF | |
| RB | 125 | PPM | XRF | |
| SR | 634 | PPM | XRF | |
| BA | 2274 | PPM | XRF | |
| LA | 82 | PPM | NAA | |
| CE | 177 | PPM | NAA | |
| SM | 6.4 | PPM | NAA | |
| EU | 1 | PPM | NAA | |
| SR87_SR86 | 0.709 | TIMS | ||
| PB206_PB204 | 18.063 | TIMS | ||
| PB207_PB204 | 15.565 | TIMS | ||
| PB208_PB204 | 37.974 | TIMS |