Sample 16
NavDat sample number 54604 · TUFF
Sample
| Sample ID | 16 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 38.2983 |
|---|---|
| Longitude | -120.702 |
| State / province | California |
| Location comment | Tuff of Chili Gulch |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 19.91 | 19.21 | 20.61 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 70.51 | WT% | XRF | |
| TIO2 | 0.18 | WT% | XRF | |
| AL2O3 | 16.44 | WT% | XRF | |
| FEO | 1.28 | WT% | XRF | |
| MNO | 0.03 | WT% | XRF | |
| MGO | -0.38 | WT% | XRF | |
| CAO | 0.44 | WT% | XRF | |
| NA2O | 1.85 | WT% | XRF | |
| K2O | 6.3 | WT% | XRF | |
| P2O5 | -0.08 | WT% | XRF | |
| S | 100 | PPM | XRF | |
| CL | 625 | PPM | XRF | |
| ZN | 149 | PPM | XRF | |
| GA | 26 | PPM | XRF | |
| RB | 206 | PPM | XRF | |
| SR | 25 | PPM | XRF | |
| Y | 48 | PPM | XRF | |
| ZR | 404 | PPM | XRF | |
| NB | 34 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 245 | PPM | XRF | |
| PB | 57 | PPM | XRF | |
| TH | 33 | PPM | XRF | |
| LA | 70 | PPM | XRF | |
| CE | 151 | PPM | XRF | |
| PR | 35 | PPM | XRF | |
| ND | 72 | PPM | XRF | |
| SM | -8 | PPM | XRF |