Sample 1727
NavDat sample number 53204 · RHYOLITE
Sample
| Sample ID | 1727 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.6117 |
|---|---|
| Longitude | -121.47 |
| 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 | 62.8 | WT% | XRF | |
| AL2O3 | 16.8 | WT% | XRF | |
| FEOT | 5.69 | WT% | XRF | |
| MGO | 2.04 | WT% | XRF | |
| CAO | 4.66 | WT% | XRF | |
| NA2O | 4.59 | WT% | XRF | |
| K2O | 2.12 | WT% | XRF | |
| TIO2 | 0.97 | WT% | XRF | |
| P2O5 | 0.23 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| TOTAL | 98.87 | WT% | XRF | |
| LOI | 1.01 | WT% | XRF | |
| RB | 62 | PPM | XRF | |
| SR | 427 | PPM | XRF | |
| Y | 32 | PPM | XRF | |
| ZR | 205 | PPM | XRF | |
| NB | 8 | PPM | XRF | |
| BA | 551 | PPM | XRF | |
| NI | 5 | PPM | XRF | |
| CU | 49 | PPM | XRF | |
| ZN | 75 | PPM | XRF | |
| CR | 9 | PPM | XRF |