Sample VR2
NavDat sample number 54432 · TUFF
Sample
| Sample ID | VR2 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Virginia Range, Nevada [float in SW 1/4, NE 1/4, NW 1/4 on western side of hill SE 1/4, Sec. 21, T16N, R20E] Fluidal devitrified equivalent. Groundmass is totally recrystallized, virtually obliterating shard texture. |
Location
| Latitude | 39.2375 |
|---|---|
| Longitude | -119.746 |
| State / province | Nevada |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 24.3 | 22.7 | 25.9 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 76.3 | WT% | XRF | |
| TIO2 | 0.18 | WT% | XRF | |
| AL2O3 | 14.01 | WT% | XRF | |
| FEO | 1.75 | WT% | XRF | |
| MNO | 0.03 | WT% | XRF | |
| MGO | -0.43 | WT% | XRF | |
| CAO | 0.3 | WT% | XRF | |
| NA2O | 3.44 | WT% | XRF | |
| K2O | 5.52 | WT% | XRF | |
| P2O5 | -0.08 | WT% | XRF | |
| ZN | 28 | PPM | XRF | |
| GA | 21 | PPM | XRF | |
| RB | 213 | PPM | XRF | |
| SR | 76 | PPM | XRF | |
| Y | 44 | PPM | XRF | |
| ZR | 395 | PPM | XRF | |
| NB | 30 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 182 | PPM | XRF | |
| PB | 63 | PPM | XRF | |
| TH | 28 | PPM | XRF | |
| LA | 60 | PPM | XRF | |
| CE | 124 | PPM | XRF | |
| PR | 15 | PPM | XRF | |
| ND | 53 | PPM | XRF | |
| SM | 11 | PPM | XRF |