Sample M4
NavDat sample number 54488 · TUFF
Sample
| Sample ID | M4 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Mine Canyon, Washoe County, Nevada [NW 1/4, NW 1/4, NE 1/4, SE 1/4, Sec. 1, T23N, R20E]. Crystal-poor, brick red, densely welded. Apparently Nine Hill Tuff. |
Location
| Latitude | 39.894 |
|---|---|
| Longitude | -119.691 |
| State / province | Nevada |
| Location comment | Nine Hill |
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 | 76.04 | WT% | XRF | |
| TIO2 | 0.25 | WT% | XRF | |
| AL2O3 | 13.97 | WT% | XRF | |
| FEO | 0.95 | WT% | XRF | |
| MNO | 0.03 | WT% | XRF | |
| MGO | -0.42 | WT% | XRF | |
| CAO | 0.32 | WT% | XRF | |
| NA2O | 3.58 | WT% | XRF | |
| K2O | 6.89 | WT% | XRF | |
| P2O5 | -0.08 | WT% | XRF | |
| CU | -5 | PPM | XRF | |
| ZN | 23 | PPM | XRF | |
| GA | 23 | PPM | XRF | |
| RB | 208 | PPM | XRF | |
| SR | 15 | PPM | XRF | |
| Y | 31 | PPM | XRF | |
| ZR | 389 | PPM | XRF | |
| NB | 28 | PPM | XRF | |
| CS | -5 | PPM | XRF | |
| BA | 288 | PPM | XRF | |
| PB | 27 | PPM | XRF | |
| TH | 26 | PPM | XRF | |
| LA | 75 | PPM | XRF | |
| CE | 142 | PPM | XRF | |
| PR | 16 | PPM | XRF | |
| ND | 49 | PPM | XRF | |
| SM | -8 | PPM | XRF |