Sample CAL12
NavDat sample number 54585 · TUFF
Sample
| Sample ID | CAL12 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Calaveras County, California [SE 1/4, NE1/4, NE1/4, SE1/4, Sec 18, T5N, R12E] head o fLombardi Gulch. Similar seciton to CAL7-10 but laterally continous. Basal vitrophyre. |
Location
| Latitude | 38.2906 |
|---|---|
| Longitude | -120.686 |
| 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 | 71.05 | WT% | XRF | |
| TIO2 | 0.16 | WT% | XRF | |
| AL2O3 | 13.93 | WT% | XRF | |
| FEO | 1.67 | WT% | XRF | |
| MNO | 0.04 | WT% | XRF | |
| MGO | -0.3 | WT% | XRF | |
| CAO | 0.43 | WT% | XRF | |
| NA2O | 1.48 | WT% | XRF | |
| K2O | 6.11 | WT% | XRF | |
| P2O5 | -0.07 | WT% | XRF | |
| S | 116 | PPM | XRF | |
| CL | 596 | PPM | XRF | |
| ZN | 115 | PPM | XRF | |
| GA | 21 | PPM | XRF | |
| RB | 215 | PPM | XRF | |
| SR | 22 | PPM | XRF | |
| Y | 40 | PPM | XRF | |
| ZR | 365 | PPM | XRF | |
| NB | 31 | PPM | XRF | |
| CS | 7 | PPM | XRF | |
| BA | 59 | PPM | XRF | |
| PB | 51 | PPM | XRF | |
| TH | 30 | PPM | XRF | |
| LA | 75 | PPM | XRF | |
| CE | 129 | PPM | XRF | |
| PR | 18 | PPM | XRF | |
| ND | 57 | PPM | XRF | |
| SM | 15 | PPM | XRF |