Sample NPR7
NavDat sample number 54636 · TUFF
Sample
| Sample ID | NPR7 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Nevada Point Ridge, Placer County, California[NW 1/4, NW1/4, NE1/4, SE1/4, Sec.9, T14N, R14E] massive poorly welded devitried light pink vitric granitic lithic tuff. |
Location
| Latitude | 39.0848 |
|---|---|
| Longitude | -120.421 |
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 25.22 | 24.1 | 26.34 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 75.3 | WT% | XRF | |
| TIO2 | 0.26 | WT% | XRF | |
| AL2O3 | 14.1 | WT% | XRF | |
| FEO | 1.65 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| MGO | 0.43 | WT% | XRF | |
| CAO | 0.49 | WT% | XRF | |
| NA2O | 4 | WT% | XRF | |
| K2O | 5.01 | WT% | XRF | |
| P2O5 | -0.07 | WT% | XRF | |
| ZN | 96 | PPM | XRF | |
| GA | 21 | PPM | XRF | |
| RB | 180 | PPM | XRF | |
| SR | 44 | PPM | XRF | |
| Y | 36 | PPM | XRF | |
| ZR | 333 | PPM | XRF | |
| NB | 25 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 567 | PPM | XRF | |
| PB | 36 | PPM | XRF | |
| TH | 27 | PPM | XRF | |
| LA | 58 | PPM | XRF | |
| CE | 110 | PPM | XRF | |
| PR | 26 | PPM | XRF | |
| ND | 43 | PPM | XRF | |
| SM | -8 | PPM | XRF |