Sample R21
NavDat sample number 54558 · TUFF
Sample
| Sample ID | R21 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Red Rock Canyon, Washoe Co., Nevada [SE 1/4, NE 1/4, NW 1/4, SE 1/4, Sec 32 T23N, R18E] Stratigraphic section of the Nine Hill Tuff. Devitrified densely welded lower phase tuff |
Location
| Latitude | 39.9081 |
|---|---|
| Longitude | -119.952 |
| State / province | Nevada |
| Location comment | Red Rock Canyon Stratigraphic Sequence |
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 | 71.81 | WT% | XRF | |
| TIO2 | 0.21 | WT% | XRF | |
| AL2O3 | 14.11 | WT% | XRF | |
| FEO | 0.96 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| MGO | -0.38 | WT% | XRF | |
| CAO | 0.38 | WT% | XRF | |
| NA2O | 2.61 | WT% | XRF | |
| K2O | 5.19 | WT% | XRF | |
| P2O5 | -0.09 | WT% | XRF | |
| CU | -5 | PPM | XRF | |
| ZN | 82 | PPM | XRF | |
| GA | 23 | PPM | XRF | |
| RB | 216 | PPM | XRF | |
| SR | 25 | PPM | XRF | |
| Y | 42 | PPM | XRF | |
| ZR | 417 | PPM | XRF | |
| NB | 30 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 151 | PPM | XRF | |
| PB | 36 | PPM | XRF | |
| TH | 27 | PPM | XRF | |
| LA | 62 | PPM | XRF | |
| CE | 122 | PPM | XRF | |
| PR | 25 | PPM | XRF | |
| ND | 60 | PPM | XRF | |
| SM | 9 | PPM | XRF |