Sample 116
NavDat sample number 19727 · ANDESITE
Sample
| Sample ID | 116 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 46.2861 |
|---|---|
| Longitude | -115.384 |
| 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 | 61.32 | WT% | XRF | |
| TIO2 | 1.23 | WT% | XRF | |
| AL2O3 | 16.85 | WT% | XRF | |
| FE2O3 | 3.34 | WT% | XRF | |
| FEO | 3.82 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| MGO | 2.56 | WT% | XRF | |
| CAO | 4.88 | WT% | XRF | |
| NA2O | 2.91 | WT% | XRF | |
| K2O | 2.69 | WT% | XRF | |
| P2O5 | 0.331 | WT% | XRF | |
| BA | 944 | PPM | ICP | |
| RB | 96 | PPM | ICP | |
| CO | 23 | PPM | ICP | |
| CR | 32 | PPM | ICP | |
| CU | 23 | PPM | ICP | |
| LI | 31 | PPM | ICP | |
| NB | 19 | PPM | ICP | |
| NI | 16 | PPM | ICP | |
| SC | 10 | PPM | ICP | |
| SR | 616 | PPM | ICP | |
| V | 114 | PPM | ICP | |
| Y | 17 | PPM | ICP | |
| ZN | 75 | PPM | ICP | |
| ZR | 90 | PPM | ICP | |
| LA | 39.84 | PPM | ICP | |
| CE | 77.69 | PPM | ICP | |
| PR | 8.6 | PPM | ICP | |
| ND | 32.64 | PPM | ICP | |
| SM | 5.58 | PPM | ICP | |
| EU | 1.64 | PPM | ICP | |
| GD | 4.38 | PPM | ICP | |
| DY | 3.1 | PPM | ICP | |
| HO | 0.6 | PPM | ICP | |
| ER | 1.72 | PPM | ICP | |
| YB | 1.4 | PPM | ICP | |
| LU | 0.19 | PPM | ICP |