Sample F17
NavDat sample number 54454 · TUFF
Sample
| Sample ID | F17 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Fissure Ridge, Gabbs Valley, Nevada [Laocations relative to Peak 4768:FI7-820 m N39W] Welded devitrified 1st cooling unit, about 60-70 below top. |
Location
| Latitude | 38.8897 |
|---|---|
| Longitude | -118.182 |
| 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 | 74.43 | WT% | XRF | |
| TIO2 | 0.15 | WT% | XRF | |
| AL2O3 | 13.58 | WT% | XRF | |
| FEO | 0.95 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| MGO | -0.3 | WT% | XRF | |
| CAO | 1.2 | WT% | XRF | |
| NA2O | 3.72 | WT% | XRF | |
| K2O | 5.43 | WT% | XRF | |
| P2O5 | 0.1 | WT% | XRF | |
| ZN | 37 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| RB | 181 | PPM | XRF | |
| SR | 115 | PPM | XRF | |
| Y | 26 | PPM | XRF | |
| ZR | 182 | PPM | XRF | |
| NB | 20 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 283 | PPM | XRF | |
| PB | 26 | PPM | XRF | |
| TH | 23 | PPM | XRF | |
| LA | 40 | PPM | XRF | |
| CE | 76 | PPM | XRF | |
| PR | 14 | PPM | XRF | |
| ND | 23 | PPM | XRF | |
| SM | -8 | PPM | XRF |