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Sample BRN-2-P
NavDat sample number 17212 · RHYOLITE
Sample
| Sample ID | BRN-2-P |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Pumice block |
|---|
Location
| Latitude | 38.8194 |
|---|
| Longitude | -113.467 |
|---|
| State / province | Utah |
|---|
| Formation | Cottonwood Wash Tuff |
|---|
| Location comment | from weakly welded base of unit |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 30.6 |
|
27.54 |
33.66 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 69.4 | | WT% | XRF |
| TIO2 | 0.33 | | WT% | XRF |
| AL2O3 | 15.1 | | WT% | XRF |
| FE2O3 | 3.77 | | WT% | XRF |
| MNO | 0.059 | | WT% | XRF |
| MGO | 1.5 | | WT% | XRF |
| CAO | 3.45 | | WT% | XRF |
| NA2O | 2.1 | | WT% | XRF |
| K2O | 4.26 | | WT% | XRF |
| P2O5 | 0.09 | | WT% | XRF |
| TOTAL | 100.06 | | WT% | XRF |
| RB | 158 | | PPM | XRF |
| SR | 294 | | PPM | XRF |
| Y | 19 | | PPM | XRF |
| ZR | 129 | | PPM | XRF |
| NB | 16 | | PPM | XRF |
| BA | 646 | | PPM | XRF |
