Sample MH9
NavDat sample number 54440 · TUFF
Sample
| Sample ID | MH9 |
|---|---|
| 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: 1020m S51W] Intermediate to upper phase devitrified densely welded crystal-vitric to vitric-crystal Nine Hill Tuff. |
Location
| Latitude | 39.2139 |
|---|---|
| Longitude | -119.701 |
| 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 | 73.42 | WT% | XRF | |
| TIO2 | 0.37 | WT% | XRF | |
| AL2O3 | 15.23 | WT% | XRF | |
| FEO | 0.95 | WT% | XRF | |
| MNO | 0.03 | WT% | XRF | |
| MGO | 0.46 | WT% | XRF | |
| CAO | 0.6 | WT% | XRF | |
| NA2O | 4.48 | WT% | XRF | |
| K2O | 5.62 | WT% | XRF | |
| P2O5 | 0.11 | WT% | XRF | |
| ZN | 67 | PPM | XRF | |
| GA | 23 | PPM | XRF | |
| RB | 164 | PPM | XRF | |
| SR | 52 | PPM | XRF | |
| Y | 30 | PPM | XRF | |
| ZR | 384 | PPM | XRF | |
| NB | 27 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 1090 | PPM | XRF | |
| PB | 28 | PPM | XRF | |
| TH | 22 | PPM | XRF | |
| LA | 59 | PPM | XRF | |
| CE | 78 | PPM | XRF | |
| PR | 30 | PPM | XRF | |
| ND | 40 | PPM | XRF | |
| SM | 12 | PPM | XRF |