Sample 95ID-85
NavDat sample number 38664 · RHYOLITE
Sample
| Sample ID | 95ID-85 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | fine grained porphyritic with phenos of plag, bio, amph, opaques; g.m. with feldspar, quartz, and opaques |
Location
| Latitude | 44.7917 |
|---|---|
| Longitude | -114.577 |
| 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 | 71.67 | WT% | XRF | |
| TIO2 | 0.48 | WT% | XRF | |
| AL2O3 | 14.6 | WT% | XRF | |
| FEOT | 3.11 | WT% | XRF | |
| MNO | 0.03 | WT% | XRF | |
| MGO | 0.67 | WT% | XRF | |
| CAO | 2.07 | WT% | XRF | |
| NA2O | 3.1 | WT% | XRF | |
| K2O | 4.09 | WT% | XRF | |
| P2O5 | 0.18 | WT% | XRF | |
| LOI | 2.22 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| NI | 13 | PPM | XRF | |
| CR | 30 | PPM | XRF | |
| SC | 6 | PPM | XRF | |
| V | 50 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| CU | 5 | PPM | XRF | |
| ZN | 49 | PPM | XRF | |
| ZR | 183 | PPM | XRF | |
| NB | 24 | PPM | XRF | |
| BA | 1434 | PPM | XRF | |
| RB | 135 | PPM | XRF | |
| SR | 433 | PPM | XRF | |
| PB | 27 | PPM | XRF | |
| TH | 24 | PPM | XRF | |
| Y | 16 | PPM | XRF | |
| SR87_SR86 | 0.71067 | TIMS | ||
| LA | 56 | PPM | XRF | |
| CE | 124 | PPM | XRF |