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Sample HR72-21
NavDat sample number 5341 · RHYOLITE
Sample
| Sample ID | HR72-21 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 36.0657 |
|---|
| Longitude | -117.833 |
|---|
| State / province | California |
|---|
| Volcanic field | Coso |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 2.66 |
|
0.01 |
5.3 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 75.27 | | WT% | XRF |
| TIO2 | 0.14 | | WT% | XRF |
| AL2O3 | 12.44 | | WT% | XRF |
| FE2O3 | 0.7 | | WT% | XRF |
| FEO | 0.32 | | WT% | XRF |
| MNO | 0.03 | | WT% | XRF |
| MGO | 0.04 | | WT% | AAS |
| CAO | 0.38 | | WT% | XRF |
| NA2O | 3.68 | | WT% | AAS |
| K2O | 4.16 | | WT% | XRF |
| H2O | 2.78 | | WT% | UNKNOWN |
| RB | 213 | | PPM | XRF |
| SR | 38 | | PPM | XRF |
