Sample 1663
NavDat sample number 53171 · RHYOLITE
Sample
| Sample ID | 1663 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.3833 |
|---|---|
| Longitude | -121.742 |
| State / province | California |
| Volcanic field | Medicine Lake |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.29 | 0.029 | 0.549 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 61 | WT% | XRF | |
| AL2O3 | 19.2 | WT% | XRF | |
| FEOT | 6.08 | WT% | XRF | |
| MGO | 2.16 | WT% | XRF | |
| CAO | 4.58 | WT% | XRF | |
| NA2O | 3.72 | WT% | XRF | |
| K2O | 1.77 | WT% | XRF | |
| TIO2 | 1.08 | WT% | XRF | |
| P2O5 | 0.27 | WT% | XRF | |
| MNO | 0.12 | WT% | XRF | |
| TOTAL | 93.13 | WT% | XRF | |
| LOI | 6.21 | WT% | XRF | |
| RB | 46 | PPM | XRF | |
| SR | 345 | PPM | XRF | |
| Y | 33 | PPM | XRF | |
| ZR | 234 | PPM | XRF | |
| NB | 9 | PPM | XRF | |
| BA | 593 | PPM | XRF | |
| NI | 8 | PPM | XRF | |
| CU | 38 | PPM | XRF | |
| ZN | 85 | PPM | XRF | |
| CR | 11 | PPM | XRF |