Sample 95ID-82
NavDat sample number 38666 · DACITE
Sample
| Sample ID | 95ID-82 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | fine grained porphyritic with phenos of plag, amph, bio, cpx (glomerocrysts), opaques; cryptocrystalline g.m. |
Location
| Latitude | 44.7867 |
|---|---|
| Longitude | -114.568 |
| Location | Highway 75 |
| State / province | Idaho |
| Volcanic field | Tca, Challis Volcanic Group |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 49 | 48 | 50 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 67.78 | WT% | XRF | |
| TIO2 | 0.54 | WT% | XRF | |
| AL2O3 | 13.51 | WT% | XRF | |
| FEOT | 3.75 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| MGO | 4 | WT% | XRF | |
| CAO | 3.36 | WT% | XRF | |
| NA2O | 2.94 | WT% | XRF | |
| K2O | 3.83 | WT% | XRF | |
| P2O5 | 0.21 | WT% | XRF | |
| LOI | 1.99 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| NI | 46 | PPM | XRF | |
| CR | 212 | PPM | XRF | |
| SC | 15 | PPM | XRF | |
| V | 77 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| CU | 24 | PPM | XRF | |
| ZN | 54 | PPM | XRF | |
| ZR | 166 | PPM | XRF | |
| NB | 20 | PPM | XRF | |
| BA | 1400 | PPM | XRF | |
| RB | 113 | PPM | XRF | |
| SR | 419 | PPM | XRF | |
| PB | 22 | PPM | XRF | |
| TH | 19 | PPM | XRF | |
| Y | 19 | PPM | XRF | |
| LA | 34 | PPM | XRF | |
| CE | 66 | PPM | XRF |