Sample 18
NavDat sample number 52802 · RHYOLITE
Sample
| Sample ID | 18 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.6802 |
|---|---|
| Longitude | -121.59 |
| State / province | California |
| Volcanic field | Medicine Lake |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.313 | 0.029 | 0.549 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 72.6 | WT% | XRF | |
| AL2O3 | 14.4 | WT% | XRF | |
| FEOT | 2.15 | WT% | XRF | |
| MGO | 0.39 | WT% | XRF | |
| CAO | 1.22 | WT% | XRF | |
| NA2O | 4.4 | WT% | XRF | |
| K2O | 4.32 | WT% | XRF | |
| TIO2 | 0.43 | WT% | XRF | |
| P2O5 | 0.06 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| TOTAL | 100.25 | WT% | XRF | |
| LOI | 0.98 | WT% | XRF | |
| RB | 112 | PPM | XRF | |
| SR | 96 | PPM | XRF | |
| Y | 35 | PPM | XRF | |
| ZR | 349 | PPM | XRF | |
| NB | 13 | PPM | XRF | |
| BA | 893 | PPM | XRF | |
| NI | 9 | PPM | XRF | |
| CU | 9 | PPM | XRF | |
| ZN | 33 | PPM | XRF | |
| CR | 2 | PPM | XRF | |
| SC | 6.6 | PPM | INAA | |
| CO | 2 | PPM | INAA | |
| RB | 112 | PPM | INAA | |
| ZR | 301 | PPM | INAA | |
| SB | 0.93 | PPM | INAA | |
| CS | 7.04 | PPM | INAA | |
| BA | 883 | PPM | INAA | |
| LA | 24.4 | PPM | INAA | |
| CE | 49.5 | PPM | INAA | |
| ND | 22.5 | PPM | INAA | |
| SM | 4.87 | PPM | INAA | |
| EU | 0.783 | PPM | INAA | |
| GD | 4.78 | PPM | INAA | |
| TB | 0.79 | PPM | INAA | |
| DY | 4.84 | PPM | INAA | |
| TM | 0.56 | PPM | INAA | |
| YB | 3.61 | PPM | INAA | |
| LU | 0.585 | PPM | INAA | |
| HF | 7.82 | PPM | INAA | |
| TA | 0.966 | PPM | INAA | |
| TH | 11.2 | PPM | INAA | |
| U | 4.46 | PPM | INAA | |
| MN | 396 | PPM | INAA |