Sample GP4
NavDat sample number 54452 · TUFF
Sample
| Sample ID | GP4 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Gallagher Pass, Yerington district, Nevada [SW 1/4, SE 1/4, NW 1/4, SE 1/4, Sec. 22 T14N, R24E] Lower welded unit of Bluestone Mine Tuff, correlatvie with the Nine Hill tuff, welded vitric and devitrified. |
Location
| Latitude | 39.0625 |
|---|---|
| Longitude | -119.28 |
| State / province | Nevada |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 22.78 | 19.21 | 26.34 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 76.71 | WT% | XRF | |
| TIO2 | 0.17 | WT% | XRF | |
| AL2O3 | 13.24 | WT% | XRF | |
| FEO | 0.66 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| MGO | -0.39 | WT% | XRF | |
| CAO | 0.26 | WT% | XRF | |
| NA2O | 3.86 | WT% | XRF | |
| K2O | 4.99 | WT% | XRF | |
| P2O5 | -0.07 | WT% | XRF | |
| ZN | 85 | PPM | XRF | |
| GA | 22 | PPM | XRF | |
| RB | 192 | PPM | XRF | |
| SR | 22 | PPM | XRF | |
| Y | 36 | PPM | XRF | |
| ZR | 404 | PPM | XRF | |
| NB | 28 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 155 | PPM | XRF | |
| PB | 23 | PPM | XRF | |
| TH | 25 | PPM | XRF | |
| LA | 63 | PPM | XRF | |
| CE | 128 | PPM | XRF | |
| PR | 7 | PPM | XRF | |
| ND | 55 | PPM | XRF | |
| SM | 14 | PPM | XRF |