Sample 20
NavDat sample number 30781 · RHYOLITE
Sample
| Sample ID | 20 |
|---|---|
| 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 |
|---|---|---|---|---|---|
| 0.96 | 0.864 | 1.056 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 77.3 | WT% | EDXRF | |
| TIO2 | 0.07 | WT% | EDXRF | |
| AL2O3 | 12.6 | WT% | EDXRF | |
| FE2O3 | 0.79 | WT% | EDXRF | |
| MNO | 0.03 | WT% | EDXRF | |
| CAO | 0.44 | WT% | EDXRF | |
| NA2O | 3.73 | WT% | EDXRF | |
| K2O | 4.86 | WT% | EDXRF | |
| LOI | 0.4 | WT% | EDXRF | |
| F | 0.06 | WT% | SIE | |
| CL | 0.05 | WT% | SIE | |
| LA | 32 | PPM | INAA | |
| CE | 63.1 | PPM | INAA | |
| ND | 21 | PPM | INAA | |
| SM | 4.4 | PPM | INAA | |
| EU | 0.047 | PPM | INAA | |
| GD | 4.2 | PPM | INAA | |
| TB | 0.58 | PPM | INAA | |
| YB | 2.14 | PPM | INAA | |
| LU | 0.298 | PPM | INAA | |
| SC | 2.6 | PPM | INAA | |
| CO | 0.091 | PPM | INAA | |
| ZN | 25.3 | PPM | INAA | |
| HF | 3.6 | PPM | INAA | |
| TA | 2.2 | PPM | INAA | |
| TH | 18.2 | PPM | INAA | |
| U | 5.6 | PPM | INAA | |
| RB | 154 | PPM | INAA | |
| CS | 4.51 | PPM | INAA | |
| BA | 53 | PPM | INAA | |
| RB | 160 | PPM | EDXRF | |
| Y | 20 | PPM | EDXRF | |
| ZR | 103 | PPM | EDXRF | |
| NB | 22 | PPM | EDXRF |