Sample 68
NavDat sample number 30762 · RHYOLITE
Sample
| Sample ID | 68 |
|---|---|
| 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 |
|---|---|---|---|---|---|
| 1.92 | 1.728 | 2.112 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 77 | WT% | EDXRF | |
| TIO2 | 0.05 | WT% | EDXRF | |
| AL2O3 | 12.9 | WT% | EDXRF | |
| FE2O3 | 0.71 | WT% | EDXRF | |
| MNO | 0.1 | WT% | EDXRF | |
| CAO | 0.28 | WT% | EDXRF | |
| NA2O | 4.38 | WT% | EDXRF | |
| K2O | 4.41 | WT% | EDXRF | |
| LOI | 0.85 | WT% | EDXRF | |
| F | 0.13 | WT% | SIE | |
| CL | 0.06 | WT% | SIE | |
| LA | 18 | PPM | INAA | |
| CE | 48.3 | PPM | INAA | |
| ND | 25 | PPM | INAA | |
| SM | 6.88 | PPM | INAA | |
| EU | 0.02 | PPM | INAA | |
| GD | 7.4 | PPM | INAA | |
| TB | 1.1 | PPM | INAA | |
| YB | 4.29 | PPM | INAA | |
| LU | 0.56 | PPM | INAA | |
| SC | 4.49 | PPM | INAA | |
| CO | 0.1 | PPM | INAA | |
| ZN | 45.4 | PPM | INAA | |
| HF | 5.31 | PPM | INAA | |
| TA | 5.66 | PPM | INAA | |
| TH | 28.7 | PPM | INAA | |
| U | 13.2 | PPM | INAA | |
| RB | 306 | PPM | INAA | |
| CS | 9.92 | PPM | INAA | |
| BA | 79 | PPM | INAA | |
| RB | 270 | PPM | EDXRF | |
| Y | 31 | PPM | EDXRF | |
| ZR | 99 | PPM | EDXRF | |
| NB | 46 | PPM | EDXRF |