Sample RSR2
NavDat sample number 54637 · TUFF
Sample
| Sample ID | RSR2 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Red Star Ridge, Placer Conty, California Hill 6159, densely welded basal vitrophyre of lower phase of the Nine Hill Tuff, vitric, bearing sanidine and minor quartz, rougly 5% flattened pumice, some charcoal. |
Location
| Latitude | 39.1764 |
|---|---|
| Longitude | -120.402 |
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 25.74 | 25.14 | 26.34 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 74.68 | WT% | XRF | |
| TIO2 | 0.16 | WT% | XRF | |
| AL2O3 | 12.8 | WT% | XRF | |
| FEO | 1.53 | WT% | XRF | |
| MNO | 0.06 | WT% | XRF | |
| MGO | -0.41 | WT% | XRF | |
| CAO | 0.51 | WT% | XRF | |
| NA2O | 2.6 | WT% | XRF | |
| K2O | 6.08 | WT% | XRF | |
| P2O5 | -0.07 | WT% | XRF | |
| S | 73 | PPM | XRF | |
| CL | 553 | PPM | XRF | |
| ZN | 102 | PPM | XRF | |
| GA | 19 | PPM | XRF | |
| RB | 228 | PPM | XRF | |
| SR | 18 | PPM | XRF | |
| Y | 41 | PPM | XRF | |
| ZR | 388 | PPM | XRF | |
| NB | 30 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 92 | PPM | XRF | |
| PB | 52 | PPM | XRF | |
| TH | 28 | PPM | XRF | |
| LA | 70 | PPM | XRF | |
| CE | 131 | PPM | XRF | |
| PR | 24 | PPM | XRF | |
| ND | 51 | PPM | XRF | |
| SM | -8 | PPM | XRF |