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Sample BRN-2-M
NavDat sample number 17211 · TUFF
Sample
| Sample ID | BRN-2-M |
|---|
| Rock name | TUFF |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Matrix of tuff around pumice blocks |
|---|
Location
| Latitude | 38.8194 |
|---|
| Longitude | -113.475 |
|---|
| State / province | Utah |
|---|
| Formation | Cottonwood Wash Tuff |
|---|
| Location comment | near base of weakly welded 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 | 64.7 | | WT% | XRF |
| TIO2 | 0.56 | | WT% | XRF |
| AL2O3 | 16.2 | | WT% | XRF |
| FE2O3 | 5.27 | | WT% | XRF |
| MNO | 0.078 | | WT% | XRF |
| MGO | 2.3 | | WT% | XRF |
| CAO | 4.81 | | WT% | XRF |
| NA2O | 2.8 | | WT% | XRF |
| K2O | 3.27 | | WT% | XRF |
| P2O5 | 0.12 | | WT% | XRF |
| TOTAL | 100.11 | | WT% | XRF |
| RB | 128 | | PPM | XRF |
| SR | 406 | | PPM | XRF |
| Y | 15 | | PPM | XRF |
| ZR | 151 | | PPM | XRF |
| NB | 10 | | PPM | XRF |
| BA | 654 | | PPM | XRF |
