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Sample HR72-4
NavDat sample number 5321 · RHYOLITE
Sample
| Sample ID | HR72-4 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 36.0727 |
|---|
| Longitude | -117.824 |
|---|
| State / province | California |
|---|
| Volcanic field | Coso |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.2 |
|
0.18 |
0.22 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 74.93 | | WT% | XRF |
| TIO2 | 0.15 | | WT% | XRF |
| AL2O3 | 12.56 | | WT% | XRF |
| FE2O3 | 0.71 | | WT% | XRF |
| FEO | 0.32 | | WT% | XRF |
| MNO | 0.03 | | WT% | XRF |
| MGO | 0.06 | | WT% | AAS |
| CAO | 1.36 | | WT% | XRF |
| NA2O | 3.74 | | WT% | AAS |
| K2O | 4.37 | | WT% | XRF |
| H2O | 2.54 | | WT% | UNKNOWN |
| RB | 222 | | PPM | XRF |
| SR | 30 | | PPM | XRF |
