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Sample F-14
NavDat sample number 5159 · TUFF
Sample
| Sample ID | F-14 |
|---|
| Rock name | TUFF |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | welded tuff |
|---|
Location
| Latitude | 38.3368 |
|---|
| Longitude | -119.378 |
|---|
| Location | Little Walker Center |
|---|
| State / province | California |
|---|
| Location comment | contained within caldera walls |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 9.65 |
|
8.6 |
10.7 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 76.61 | | WT% | XRF |
| TIO2 | 0.19 | | WT% | XRF |
| AL2O3 | 13.03 | | WT% | XRF |
| FE2O3 | 1.05 | | WT% | XRF |
| FEO | 0.95 | | WT% | XRF |
| MNO | 0.03 | | WT% | XRF |
| MGO | 0.21 | | WT% | XRF |
| CAO | 0.72 | | WT% | XRF |
| NA2O | 2.04 | | WT% | XRF |
| K2O | 5.55 | | WT% | XRF |
| P2O5 | 0.03 | | WT% | XRF |
| LOI | 1.09 | | WT% | XRF |
| TOTAL | 99.47 | | WT% | XRF |
| RB | 205 | | PPM | XRF |
| SR | 89.2 | | PPM | XRF |
