Sample AUK1
NavDat sample number 54539 · TUFF
Sample
| Sample ID | AUK1 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Autumn Cal. (SE 1/4, SW 1/4, NW'/ 4, Sec. 7 T8N R21E). Unamed moderately welded quartz-bearing glassy ritric tuff about 15m thick. |
Location
| Latitude | 38.5558 |
|---|---|
| Longitude | -120.73 |
| State / province | California |
| Location comment | Nine Hill Tuff |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 23.3 | 22.7 | 23.9 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 75.12 | WT% | XRF | |
| TIO2 | 0.1 | WT% | XRF | |
| AL2O3 | 12.43 | WT% | XRF | |
| FEO | 0.81 | WT% | XRF | |
| MNO | 0.05 | WT% | XRF | |
| MGO | -0.38 | WT% | XRF | |
| CAO | 0.56 | WT% | XRF | |
| NA2O | 2.28 | WT% | XRF | |
| K2O | 5.53 | WT% | XRF | |
| P2O5 | -0.08 | WT% | XRF | |
| S | -30 | PPM | XRF | |
| CL | 498 | PPM | XRF | |
| ZN | 36 | PPM | XRF | |
| GA | 16 | PPM | XRF | |
| RB | 177 | PPM | XRF | |
| SR | 43 | PPM | XRF | |
| Y | 17 | PPM | XRF | |
| ZR | 127 | PPM | XRF | |
| NB | 18 | PPM | XRF | |
| CS | 6 | PPM | XRF | |
| BA | 483 | PPM | XRF | |
| PB | 37 | PPM | XRF | |
| TH | 24 | PPM | XRF | |
| LA | 33 | PPM | XRF | |
| CE | 75 | PPM | XRF | |
| PR | -8 | PPM | XRF | |
| ND | 26 | PPM | XRF | |
| SM | -8 | PPM | XRF |