Sample G4
NavDat sample number 54458 · TUFF
Sample
| Sample ID | G4 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Gillis and Gabbs Valley Range, Nevada [2.68 km N60W from corner T12N, R30E and R31E]. Section through brick-red lower welded vitric unit of tuff of Gabbs Valley, all devitrified. |
Location
| Latitude | 38.9468 |
|---|---|
| Longitude | -118.639 |
| State / province | Nevada |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 25.7 | 25.5 | 25.9 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 74.1 | WT% | XRF | |
| TIO2 | 0.16 | WT% | XRF | |
| AL2O3 | 14.05 | WT% | XRF | |
| FEO | 2.21 | WT% | XRF | |
| MNO | 0.03 | WT% | XRF | |
| MGO | -0.3 | WT% | XRF | |
| CAO | 0.47 | WT% | XRF | |
| NA2O | 2.35 | WT% | XRF | |
| K2O | 8.19 | WT% | XRF | |
| P2O5 | 0.1 | WT% | XRF | |
| ZN | 65 | PPM | XRF | |
| GA | 25 | PPM | XRF | |
| RB | 244 | PPM | XRF | |
| SR | 56 | PPM | XRF | |
| Y | 42 | PPM | XRF | |
| ZR | 444 | PPM | XRF | |
| NB | 32 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 123 | PPM | XRF | |
| PB | 52 | PPM | XRF | |
| TH | 27 | PPM | XRF | |
| LA | 73 | PPM | XRF | |
| CE | 126 | PPM | XRF | |
| PR | 21 | PPM | XRF | |
| ND | 46 | PPM | XRF | |
| SM | 11 | PPM | XRF |