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Sample F-54
NavDat sample number 5176 · ANDESITE
Sample
| Sample ID | F-54 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | medium to light grey trachyandesites |
|---|
Location
| Latitude | 38.3359 |
|---|
| Longitude | -119.407 |
|---|
| Location | Wheeler Flat |
|---|
| State / province | California |
|---|
| Location comment | erupted on top of the darker trachyandesites or onto sediments contained within the caldera |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 33.4 |
|
1.8 |
65 |
Tertiary |
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 58.58 | | WT% | XRF |
| TIO2 | 0.85 | | WT% | XRF |
| AL2O3 | 18.38 | | WT% | XRF |
| FE2O3 | 6.52 | | WT% | XRF |
| FEO | 5.87 | | WT% | XRF |
| MNO | 0.08 | | WT% | XRF |
| MGO | 1.99 | | WT% | XRF |
| CAO | 5.87 | | WT% | XRF |
| NA2O | 3.97 | | WT% | XRF |
| K2O | 2.71 | | WT% | XRF |
| P2O5 | 0.42 | | WT% | XRF |
| LOI | 0.49 | | WT% | XRF |
| TOTAL | 99.37 | | WT% | XRF |
| RB | 73.3 | | PPM | XRF |
| SR | 1120 | | PPM | XRF |
