Sample 142
NavDat sample number 52814 · RHYOLITE
Sample
| Sample ID | 142 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Donnelly-Nolan |
Location
| Latitude | 41.695 |
|---|---|
| Longitude | -121.648 |
| State / province | California |
| Volcanic field | Medicine Lake |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.391 | 0.029 | 0.549 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 75.7 | WT% | XRF | |
| AL2O3 | 13.5 | WT% | XRF | |
| FEOT | 1.2 | WT% | XRF | |
| MGO | 0.22 | WT% | XRF | |
| CAO | 0.82 | WT% | XRF | |
| NA2O | 3.73 | WT% | XRF | |
| K2O | 4.64 | WT% | XRF | |
| TIO2 | 0.19 | WT% | XRF | |
| P2O5 | 0 | WT% | XRF | |
| MNO | 0.02 | WT% | XRF | |
| TOTAL | 99.71 | WT% | XRF | |
| LOI | 0.86 | WT% | XRF | |
| FEOT | 0.85 | WT% | WET | |
| H2O_PLUS | 0.25 | WT% | WET | |
| H2O_MINUS | 0.07 | WT% | WET | |
| CO2 | 0.06 | WT% | WET | |
| RB | 133 | PPM | XRF | |
| SR | 71 | PPM | XRF | |
| Y | 27 | PPM | XRF | |
| ZR | 176 | PPM | XRF | |
| NB | 8 | PPM | XRF | |
| BA | 773 | PPM | XRF | |
| NI | 10 | PPM | XRF | |
| CU | 8 | PPM | XRF | |
| ZN | 19 | PPM | XRF | |
| CR | 1 | PPM | XRF | |
| SC | 3.6 | PPM | INAA | |
| CO | 1.1 | PPM | INAA | |
| RB | 126 | PPM | INAA | |
| ZR | 158 | PPM | INAA | |
| SB | 1.35 | PPM | INAA | |
| CS | 7.7 | PPM | INAA | |
| BA | 738 | PPM | INAA | |
| LA | 23.4 | PPM | INAA | |
| CE | 43.8 | PPM | INAA | |
| ND | 18.1 | PPM | INAA | |
| SM | 3.72 | PPM | INAA | |
| EU | 0.406 | PPM | INAA | |
| GD | 3.61 | PPM | INAA | |
| TB | 0.602 | PPM | INAA | |
| DY | 3.8 | PPM | INAA | |
| TM | 0.47 | PPM | INAA | |
| YB | 2.99 | PPM | INAA | |
| LU | 0.447 | PPM | INAA | |
| HF | 4.69 | PPM | INAA | |
| TA | 0.928 | PPM | INAA | |
| TH | 12.9 | PPM | INAA | |
| U | 5.04 | PPM | INAA | |
| MN | 258 | PPM | INAA |