Sample 220
NavDat sample number 30776 · RHYOLITE
Sample
| Sample ID | 220 |
|---|---|
| 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 |
|---|---|---|---|---|---|
| 1.65 | 1.2 | 2.1 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 76.8 | WT% | EDXRF | |
| TIO2 | 0.06 | WT% | EDXRF | |
| AL2O3 | 12.9 | WT% | EDXRF | |
| FE2O3 | 0.72 | WT% | EDXRF | |
| MNO | 0.1 | WT% | EDXRF | |
| CAO | 0.28 | WT% | EDXRF | |
| NA2O | 4.6 | WT% | EDXRF | |
| K2O | 4.5 | WT% | EDXRF | |
| LOI | 0.39 | WT% | EDXRF | |
| LA | 16.8 | PPM | INAA | |
| CE | 44.3 | PPM | INAA | |
| ND | 22 | PPM | INAA | |
| SM | 6.52 | PPM | INAA | |
| EU | 0.012 | PPM | INAA | |
| GD | 7.3 | PPM | INAA | |
| TB | 1.08 | PPM | INAA | |
| YB | 3.92 | PPM | INAA | |
| LU | 0.53 | PPM | INAA | |
| SC | 4.76 | PPM | INAA | |
| CO | 0.06 | PPM | INAA | |
| ZN | 45.6 | PPM | INAA | |
| HF | 4.98 | PPM | INAA | |
| TA | 5.18 | PPM | INAA | |
| TH | 24.1 | PPM | INAA | |
| U | 11.9 | PPM | INAA | |
| RB | 285 | PPM | INAA | |
| CS | 9.37 | PPM | INAA | |
| BA | 59 | PPM | INAA | |
| RB | 285 | PPM | EDXRF | |
| Y | 35 | PPM | EDXRF | |
| ZR | 105 | PPM | EDXRF | |
| NB | 49 | PPM | EDXRF |