Sample 203
NavDat sample number 30769 · RHYOLITE
Sample
| Sample ID | 203 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.775 |
|---|---|
| Longitude | -118.708 |
| Location | Glass Mountain |
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 1.89 | 1.701 | 2.079 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 77.1 | WT% | EDXRF | |
| TIO2 | 0.05 | WT% | EDXRF | |
| AL2O3 | 12.5 | WT% | EDXRF | |
| FE2O3 | 0.79 | WT% | EDXRF | |
| MNO | 0.03 | WT% | EDXRF | |
| CAO | 0.35 | WT% | EDXRF | |
| NA2O | 4.09 | WT% | EDXRF | |
| K2O | 4.89 | WT% | EDXRF | |
| LOI | 0.66 | WT% | EDXRF | |
| LA | 21 | PPM | INAA | |
| CE | 49.1 | PPM | INAA | |
| ND | 20 | PPM | INAA | |
| SM | 4.78 | PPM | INAA | |
| EU | 0.011 | PPM | INAA | |
| GD | 5.3 | PPM | INAA | |
| TB | 0.64 | PPM | INAA | |
| YB | 2.27 | PPM | INAA | |
| LU | 0.329 | PPM | INAA | |
| SC | 3.43 | PPM | INAA | |
| CO | 0.043 | PPM | INAA | |
| ZN | 33.4 | PPM | INAA | |
| HF | 3.96 | PPM | INAA | |
| TA | 2.88 | PPM | INAA | |
| TH | 17.1 | PPM | INAA | |
| U | 6.8 | PPM | INAA | |
| RB | 182 | PPM | INAA | |
| CS | 5.25 | PPM | INAA | |
| BA | 51 | PPM | INAA | |
| RB | 180 | PPM | EDXRF | |
| Y | 21 | PPM | EDXRF | |
| ZR | 101 | PPM | EDXRF | |
| NB | 30 | PPM | EDXRF |