Sample NPR5
NavDat sample number 54635 · VITROPHERE
Sample
| Sample ID | NPR5 |
|---|---|
| Rock name | VITROPHERE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Nevada Point Ridge, Placer County, California [SE 1/4, SE 1/4, NE 1/4, SE 1/4, Sec. 17 T13N, R13E] Basal vitrophyre similar to NPR 3 |
Location
| Latitude | 38.9767 |
|---|---|
| Longitude | -120.547 |
| 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 | 72.74 | WT% | XRF | |
| TIO2 | 0.14 | WT% | XRF | |
| AL2O3 | 11.87 | WT% | XRF | |
| FEO | 1.33 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| MGO | -0.41 | WT% | XRF | |
| CAO | 0.42 | WT% | XRF | |
| NA2O | 2.31 | WT% | XRF | |
| K2O | 6.17 | WT% | XRF | |
| P2O5 | -0.07 | WT% | XRF | |
| S | 138 | PPM | XRF | |
| CL | 651 | PPM | XRF | |
| ZN | 92 | PPM | XRF | |
| GA | 22 | PPM | XRF | |
| RB | 234 | PPM | XRF | |
| SR | 19 | PPM | XRF | |
| Y | 48 | PPM | XRF | |
| ZR | 374 | PPM | XRF | |
| NB | 30 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 51 | PPM | XRF | |
| PB | 49 | PPM | XRF | |
| TH | 26 | PPM | XRF | |
| LA | 78 | PPM | XRF | |
| CE | 137 | PPM | XRF | |
| PR | 14 | PPM | XRF | |
| ND | 69 | PPM | XRF | |
| SM | 9 | PPM | XRF |