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Sample Feb-94
NavDat sample number 16002 · RHYODACITE
Sample
| Sample ID | Feb-94 |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 33.015 |
|---|
| Longitude | -114.6 |
|---|
| Location | Picacho region,Chocolate Mtns |
|---|
| State / province | California |
|---|
| Volcanic field | Quechan volcanics |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 23.5 |
|
22.9 |
24.1 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 63.26 | | WT% | XRF |
| TIO2 | 0.85 | | WT% | XRF |
| AL2O3 | 16.93 | | WT% | XRF |
| FEO | 4.15 | | WT% | XRF |
| MNO | 0.06 | | WT% | XRF |
| MGO | 2.38 | | WT% | XRF |
| CAO | 1.27 | | WT% | XRF |
| NA2O | 1.39 | | WT% | XRF |
| K2O | 6.65 | | WT% | XRF |
| TOTAL | 96.94 | | WT% | XRF |
