Sample MH12
NavDat sample number 54441 · TUFF
Sample
| Sample ID | MH12 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Mound House, Carson city, Nevada [Referenced to Hill 5675 in SW 1/4, SE 1/4, Sec. 26 T16N, R20E: 750 m S84W] Intermediate to upper phase devitrified densely welded crystal-vitric to vitric-crystal Nine Hill Tuff. |
Location
| Latitude | 39.2181 |
|---|---|
| Longitude | -119.704 |
| State / province | Nevada |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 22.78 | 19.21 | 26.34 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 75.39 | WT% | XRF | |
| TIO2 | 0.29 | WT% | XRF | |
| AL2O3 | 14.42 | WT% | XRF | |
| FEO | 0.91 | WT% | XRF | |
| MNO | 0.03 | WT% | XRF | |
| MGO | 0.5 | WT% | XRF | |
| CAO | 0.43 | WT% | XRF | |
| NA2O | 4.36 | WT% | XRF | |
| K2O | 5.42 | WT% | XRF | |
| P2O5 | 0.11 | WT% | XRF | |
| ZN | 80 | PPM | XRF | |
| GA | 20 | PPM | XRF | |
| RB | 182 | PPM | XRF | |
| SR | 29 | PPM | XRF | |
| Y | 34 | PPM | XRF | |
| ZR | 410 | PPM | XRF | |
| NB | 24 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 555 | PPM | XRF | |
| PB | 34 | PPM | XRF | |
| TH | 25 | PPM | XRF | |
| LA | 60 | PPM | XRF | |
| CE | 106 | PPM | XRF | |
| PR | 13 | PPM | XRF | |
| ND | 55 | PPM | XRF | |
| SM | -8 | PPM | XRF |