Sample G7
NavDat sample number 54449 · TUFF
Sample
| Sample ID | G7 |
|---|---|
| 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 |
|---|---|---|---|---|---|
| 24.85 | 23.3 | 26.4 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 76.5 | WT% | XRF | |
| TIO2 | 0.25 | WT% | XRF | |
| AL2O3 | 15.22 | WT% | XRF | |
| FEO | 2.46 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| MGO | -0.36 | WT% | XRF | |
| CAO | 0.45 | WT% | XRF | |
| NA2O | 4.33 | WT% | XRF | |
| K2O | 6.44 | WT% | XRF | |
| P2O5 | 0.09 | WT% | XRF | |
| ZN | 83 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| RB | 212 | PPM | XRF | |
| SR | 55 | PPM | XRF | |
| Y | 43 | PPM | XRF | |
| ZR | 419 | PPM | XRF | |
| NB | 29 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 297 | PPM | XRF | |
| PB | 45 | PPM | XRF | |
| TH | 24 | PPM | XRF | |
| LA | 69 | PPM | XRF | |
| CE | 102 | PPM | XRF | |
| PR | 10 | PPM | XRF | |
| ND | 61 | PPM | XRF | |
| SM | 9 | PPM | XRF |