Sample 9-25-91-4
NavDat sample number 92274 · RHYOLITE
Sample
| Sample ID | 9-25-91-4 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 44.4722 |
|---|---|
| Longitude | -103.422 |
| Location | Bear Butte |
| State / province | South Dakota |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 52 | 46 | 58 |
Analyses
WHOLE ROCK
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 71.4 | WT% | XRF | |
| TIO2 | 0.13 | WT% | XRF | |
| AL2O3 | 14.7 | WT% | XRF | |
| FE2O3 | 1.37 | WT% | XRF | |
| FEOT | 1.52 | WT% | XRF | |
| FEO | 0.28 | WT% | XRF | |
| MNO | 0.06 | WT% | XRF | |
| MGO | 0.54 | WT% | XRF | |
| CAO | 1.27 | WT% | XRF | |
| NA2O | 3.47 | WT% | XRF | |
| K2O | 4.34 | WT% | XRF | |
| P2O5 | 0.05 | WT% | XRF | |
| CO2 | 0.09 | WT% | XRF | |
| LOI | 2.35 | WT% | XRF | |
| NB | 18 | PPM | XRF | |
| RB | 114 | PPM | XRF | |
| SR | 485 | PPM | XRF | |
| ZR | 120 | PPM | XRF | |
| Y | 11 | PPM | XRF | |
| BA | 1300 | PPM | XRF | |
| CE | 43 | PPM | XRF | |
| LA | -30 | PPM | XRF | |
| ZN | 54 | PPM | XRF | |
| H2O_PLUS | 0.75 | WT% | UNKNOWN | |
| H2O_MINUS | 1.18 | WT% | UNKNOWN | |
| CO2 | 0.09 | WT% | UNKNOWN | |
| TH | 12.9 | PPM | ICPMS | |
| U | 6.82 | PPM | ICPMS | |
| LA | 23 | PPM | ICPMS | |
| CE | 39 | PPM | ICPMS | |
| PR | 4.6 | PPM | ICPMS | |
| ND | 17 | PPM | ICPMS | |
| SM | 3.4 | PPM | ICPMS | |
| EU | 1.1 | PPM | ICPMS | |
| GD | 2.9 | PPM | ICPMS | |
| TB | 0.34 | PPM | ICPMS | |
| DY | 1.9 | PPM | ICPMS | |
| HO | 0.36 | PPM | ICPMS | |
| ER | 1.1 | PPM | ICPMS | |
| TM | 0.17 | PPM | ICPMS | |
| YB | 1.2 | PPM | ICPMS |