Sample 230
NavDat sample number 30775 · RHYOLITE
Sample
| Sample ID | 230 |
|---|---|
| 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 |
|---|---|---|---|---|---|
| 1.75 | 1.575 | 1.925 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 76.8 | WT% | EDXRF | |
| TIO2 | 0.07 | WT% | EDXRF | |
| AL2O3 | 12.9 | WT% | EDXRF | |
| FE2O3 | 0.75 | WT% | EDXRF | |
| MNO | 0.1 | WT% | EDXRF | |
| CAO | 0.33 | WT% | EDXRF | |
| NA2O | 4.35 | WT% | EDXRF | |
| K2O | 4.58 | WT% | EDXRF | |
| LOI | 2.74 | WT% | EDXRF | |
| LA | 16.6 | PPM | INAA | |
| CE | 45 | PPM | INAA | |
| ND | 21 | PPM | INAA | |
| SM | 6.54 | PPM | INAA | |
| EU | 0.008 | PPM | INAA | |
| GD | 7.5 | PPM | INAA | |
| TB | 1.1 | PPM | INAA | |
| YB | 3.82 | PPM | INAA | |
| LU | 0.533 | PPM | INAA | |
| SC | 4.83 | PPM | INAA | |
| CO | 0.1 | PPM | INAA | |
| ZN | 44.6 | PPM | INAA | |
| HF | 5.05 | PPM | INAA | |
| TA | 5.28 | PPM | INAA | |
| TH | 24.3 | PPM | INAA | |
| U | 11.7 | PPM | INAA | |
| RB | 284 | PPM | INAA | |
| CS | 9.3 | PPM | INAA | |
| BA | 67 | PPM | INAA | |
| RB | 265 | PPM | EDXRF | |
| Y | 29 | PPM | EDXRF | |
| ZR | 100 | PPM | EDXRF | |
| NB | 46 | PPM | EDXRF |