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Sample HR72-12
NavDat sample number 5329 · RHYODACITE
Sample
| Sample ID | HR72-12 |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 36.1821 |
|---|
| Longitude | -117.915 |
|---|
| State / province | California |
|---|
| Volcanic field | Coso |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 2.52 |
|
2.268 |
2.772 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 69.16 | | WT% | XRF |
| TIO2 | 0.5 | | WT% | XRF |
| AL2O3 | 14.85 | | WT% | XRF |
| FE2O3 | 1.37 | | WT% | XRF |
| FEO | 1.23 | | WT% | XRF |
| MNO | 0.05 | | WT% | XRF |
| MGO | 0.74 | | WT% | AAS |
| CAO | 1.82 | | WT% | XRF |
| NA2O | 3.75 | | WT% | AAS |
| K2O | 3.94 | | WT% | XRF |
| H2O | 2.59 | | WT% | UNKNOWN |
| RB | 91 | | PPM | XRF |
| SR | 299 | | PPM | XRF |
