Sample D4
NavDat sample number 54398 · TUFF
Sample
| Sample ID | D4 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Dogskin Mountian, Nevada [NE 1/4, SE 1/4, SE 1/4 Sec 17 T24N, R19E] White, unwelded platey tuff, about 40 m above the bottom of canyon, 10 m ? Above base of unit |
Location
| Latitude | 39.9167 |
|---|---|
| Longitude | -119.805 |
| State / province | Nevada |
| Location comment | Dogskin Mountain |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 28.15 | 27 | 29.3 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 56.57 | WT% | XRF | |
| TIO2 | 0.12 | WT% | XRF | |
| AL2O3 | 10.23 | WT% | XRF | |
| FEO | 1.38 | WT% | XRF | |
| MNO | 0.3 | WT% | XRF | |
| MGO | 0.62 | WT% | XRF | |
| CAO | 23.18 | WT% | XRF | |
| NA2O | 2.21 | WT% | XRF | |
| K2O | 3.05 | WT% | XRF | |
| P2O5 | 0.1 | WT% | XRF | |
| ZN | 43 | PPM | XRF | |
| GA | 16 | PPM | XRF | |
| RB | 94 | PPM | XRF | |
| SR | 191 | PPM | XRF | |
| Y | 12 | PPM | XRF | |
| ZR | 112 | PPM | XRF | |
| NB | 14 | PPM | XRF | |
| CS | 10 | PPM | XRF | |
| BA | 339 | PPM | XRF | |
| PB | 25 | PPM | XRF | |
| TH | 16 | PPM | XRF | |
| LA | 24 | PPM | XRF | |
| CE | 41 | PPM | XRF | |
| PR | -8 | PPM | XRF | |
| ND | 7 | PPM | XRF | |
| SM | -8 | PPM | XRF |