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Sample 25
NavDat sample number 5993 · TUFF
Sample
| Sample ID | 25 |
|---|
| Rock name | TUFF |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | devitrified |
|---|
Location
| Latitude | 39.9167 |
|---|
| Longitude | -119.805 |
|---|
| Location | Nine Hill Tuff |
|---|
| 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 | 70.8 | | WT% | XRF |
| AL2O3 | 14.5 | | WT% | XRF |
| FE2O3 | 2.74 | | WT% | XRF |
| MGO | 0.161 | | WT% | XRF |
| CAO | 0.63 | | WT% | XRF |
| NA2O | 4.37 | | WT% | XRF |
| K2O | 5.45 | | WT% | XRF |
| TIO2 | 0.34 | | WT% | XRF |
| P2O5 | 0.07 | | WT% | XRF |
| MNO | 0.03 | | WT% | XRF |
| U | 8.4 | | PPM | NAA |
