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Sample F-72
NavDat sample number 5189 · PYROCLASTIC FALL
Sample
| Sample ID | F-72 |
|---|
| Rock name | PYROCLASTIC FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | welded tuffs |
|---|
Location
| Latitude | 38.4181 |
|---|
| Longitude | -119.433 |
|---|
| Location | Little Walker Center |
|---|
| State / province | California |
|---|
| Formation | Eureka Valley Tuff |
|---|
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 | 62.1 | | WT% | XRF |
| TIO2 | 1.12 | | WT% | XRF |
| AL2O3 | 17.07 | | WT% | XRF |
| FE2O3 | 5.04 | | WT% | XRF |
| FEO | 4.54 | | WT% | XRF |
| MNO | 0.1 | | WT% | XRF |
| MGO | 1.22 | | WT% | XRF |
| CAO | 3.04 | | WT% | XRF |
| NA2O | 3.66 | | WT% | XRF |
| K2O | 5.94 | | WT% | XRF |
| P2O5 | 0.34 | | WT% | XRF |
| LOI | 2.3 | | WT% | XRF |
| TOTAL | 99.62 | | WT% | XRF |
| RB | 209 | | PPM | XRF |
| SR | 506 | | PPM | XRF |
