Sample 95ID-91
NavDat sample number 38674 · RHYOLITE
Sample
| Sample ID | 95ID-91 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | fine grained porphyritic with phenos of plag, bio, amph, k-feldspar(?), opaques; cryptocrystalline g.m. |
Location
| Latitude | 44.7767 |
|---|---|
| Longitude | -114.567 |
| Location | Baker Creek |
| 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 | 70.58 | WT% | XRF | |
| TIO2 | 0.47 | WT% | XRF | |
| AL2O3 | 14.66 | WT% | XRF | |
| FEOT | 3.09 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| MGO | 1.46 | WT% | XRF | |
| CAO | 2.26 | WT% | XRF | |
| NA2O | 2.8 | WT% | XRF | |
| K2O | 4.45 | WT% | XRF | |
| P2O5 | 0.16 | WT% | XRF | |
| LOI | 3.79 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| NI | 19 | PPM | XRF | |
| CR | 34 | PPM | XRF | |
| SC | 2 | PPM | XRF | |
| V | 52 | PPM | XRF | |
| GA | 17 | PPM | XRF | |
| CU | 10 | PPM | XRF | |
| ZN | 49 | PPM | XRF | |
| ZR | 178 | PPM | XRF | |
| NB | 25 | PPM | XRF | |
| BA | 1606 | PPM | XRF | |
| RB | 134 | PPM | XRF | |
| SR | 300 | PPM | XRF | |
| PB | 25 | PPM | XRF | |
| TH | 22 | PPM | XRF | |
| Y | 19 | PPM | XRF | |
| LA | 52 | PPM | XRF | |
| CE | 64 | PPM | XRF |