Sample 1720
NavDat sample number 53197 · RHYOLITE
Sample
| Sample ID | 1720 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.765 |
|---|---|
| Longitude | -121.88 |
| 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 | 64.9 | WT% | XRF | |
| AL2O3 | 16.4 | WT% | XRF | |
| FEOT | 4.89 | WT% | XRF | |
| MGO | 1.65 | WT% | XRF | |
| CAO | 3.9 | WT% | XRF | |
| NA2O | 4.62 | WT% | XRF | |
| K2O | 2.45 | WT% | XRF | |
| TIO2 | 0.9 | WT% | XRF | |
| P2O5 | 0.26 | WT% | XRF | |
| MNO | 0.1 | WT% | XRF | |
| TOTAL | 97.16 | WT% | XRF | |
| LOI | 2.7 | WT% | XRF | |
| RB | 64 | PPM | XRF | |
| SR | 402 | PPM | XRF | |
| Y | 33 | PPM | XRF | |
| ZR | 218 | PPM | XRF | |
| NB | 9 | PPM | XRF | |
| BA | 660 | PPM | XRF | |
| NI | 12 | PPM | XRF | |
| CU | 28 | PPM | XRF | |
| ZN | 74 | PPM | XRF | |
| CR | 6 | PPM | XRF |