Sample 118.6
NavDat sample number 19730 · DACITE
Sample
| Sample ID | 118.6 |
|---|---|
| Rock name | DACITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 46.32 |
|---|---|
| Longitude | -115.356 |
| Location | Lochsa River / Route 12 section; sample name is its milepost location |
| State / province | Idaho |
| Volcanic field | Idaho batholith, Bitterroot lobe |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 77 | 70 | 85 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 68.24 | WT% | XRF | |
| TIO2 | 0.57 | WT% | XRF | |
| AL2O3 | 16.05 | WT% | XRF | |
| FE2O3 | 1.57 | WT% | XRF | |
| FEO | 1.8 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| MGO | 1.7 | WT% | XRF | |
| CAO | 3.61 | WT% | XRF | |
| NA2O | 2.68 | WT% | XRF | |
| K2O | 3.57 | WT% | XRF | |
| P2O5 | 0.174 | WT% | XRF | |
| BA | 619 | PPM | ICP | |
| RB | 147 | PPM | ICP | |
| CO | 33 | PPM | ICP | |
| CR | 60 | PPM | ICP | |
| CU | 17 | PPM | ICP | |
| LI | 27 | PPM | ICP | |
| NB | 13 | PPM | ICP | |
| NI | 18 | PPM | ICP | |
| SC | 7 | PPM | ICP | |
| SR | 320 | PPM | ICP | |
| V | 49 | PPM | ICP | |
| Y | 10 | PPM | ICP | |
| ZN | 58 | PPM | ICP | |
| ZR | 45 | PPM | ICP | |
| LA | 38.72 | PPM | ICP | |
| CE | 72.81 | PPM | ICP | |
| PR | 7.67 | PPM | ICP | |
| ND | 28.52 | PPM | ICP | |
| SM | 4.75 | PPM | ICP | |
| EU | 1.09 | PPM | ICP | |
| GD | 3.28 | PPM | ICP | |
| DY | 2.05 | PPM | ICP | |
| HO | 0.39 | PPM | ICP | |
| ER | 1.2 | PPM | ICP | |
| YB | 0.96 | PPM | ICP | |
| LU | 0.13 | PPM | ICP |