Sample 137
NavDat sample number 18432 · RHYOLITE
Sample
| Sample ID | 137 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | glassy, recrystallized, and flow-banded; microphenos of plag |
Location
| Latitude | 44.3362 |
|---|---|
| Longitude | -114.804 |
| Location | hill 9002 |
| State / province | Idaho |
| Volcanic field | Challis Volcanics |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 46 | 43 | 49 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 80.6 | WT% | AAS | |
| TIO2 | 0.32 | WT% | AAS | |
| AL2O3 | 9.96 | WT% | AAS | |
| FE2O3 | 0 | WT% | AAS | |
| FEO | 0.39 | WT% | TIT | |
| MNO | 0.01 | WT% | AAS | |
| MGO | 0.16 | WT% | AAS | |
| CAO | 0.48 | WT% | AAS | |
| NA2O | 1.3 | WT% | AAS | |
| K2O | 4.79 | WT% | AAS | |
| P2O5 | 0.02 | WT% | AAS | |
| H2O_PLUS | 0.48 | WT% | UNKNOWN | |
| H2O_MINUS | 0.26 | WT% | UNKNOWN | |
| TOTAL | 98.77 | WT% | AAS | |
| RB | 168 | PPM | XRF | |
| SR | 106 | PPM | XRF | |
| BA | 686 | PPM | AAS | |
| CR | 16 | PPM | AAS | |
| ZR | 93 | PPM | XRF | |
| CU | 1 | PPM | AAS |