Sample 215
NavDat sample number 30772 · RHYOLITE
Sample
| Sample ID | 215 |
|---|---|
| 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 |
|---|---|---|---|---|---|
| 1.77 | 1.593 | 1.947 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 77.2 | WT% | EDXRF | |
| TIO2 | 0.04 | WT% | EDXRF | |
| AL2O3 | 12.5 | WT% | EDXRF | |
| FE2O3 | 0.8 | WT% | EDXRF | |
| MNO | 0.04 | WT% | EDXRF | |
| CAO | 0.39 | WT% | EDXRF | |
| NA2O | 4.22 | WT% | EDXRF | |
| K2O | 4.66 | WT% | EDXRF | |
| LOI | 0.99 | WT% | EDXRF | |
| LA | 23.5 | PPM | INAA | |
| CE | 52.9 | PPM | INAA | |
| ND | 20 | PPM | INAA | |
| SM | 4.6 | PPM | INAA | |
| EU | 0.021 | PPM | INAA | |
| GD | 4.6 | PPM | INAA | |
| TB | 0.63 | PPM | INAA | |
| YB | 2.25 | PPM | INAA | |
| LU | 0.301 | PPM | INAA | |
| SC | 3.22 | PPM | INAA | |
| CO | 0.04 | PPM | INAA | |
| ZN | 31.5 | PPM | INAA | |
| HF | 3.78 | PPM | INAA | |
| TA | 2.71 | PPM | INAA | |
| TH | 17.4 | PPM | INAA | |
| U | 6.3 | PPM | INAA | |
| RB | 168 | PPM | INAA | |
| CS | 4.71 | PPM | INAA | |
| BA | 45 | PPM | INAA | |
| RB | 170 | PPM | EDXRF | |
| Y | 19 | PPM | EDXRF | |
| ZR | 102 | PPM | EDXRF | |
| NB | 28 | PPM | EDXRF |