← Search
Sample 27-Mar
NavDat sample number 16032 · RHYODACITE
Sample
| Sample ID | 27-Mar |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Rhyodacite Lava Flows and Domes |
Location
| Latitude | 32.9817 |
|---|
| Longitude | -114.578 |
|---|
| Location | Picacho region,Chocolate Mtns |
|---|
| State / province | California |
|---|
| Volcanic field | Inner Volcanics |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
| 21.8 |
|
21.2 |
22.4 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
| SIO2 | 66.88 | | WT% | XRF |
| TIO2 | 0.33 | | WT% | XRF |
| AL2O3 | 15.28 | | WT% | XRF |
| FEO | 1.8 | | WT% | XRF |
| MNO | 0.05 | | WT% | XRF |
| MGO | 0.6 | | WT% | XRF |
| CAO | 2.46 | | WT% | XRF |
| NA2O | 4.02 | | WT% | XRF |
| K2O | 2.02 | | WT% | XRF |
| TOTAL | 93.44 | | WT% | XRF |