Sample L-74-7
NavDat sample number 12085 · RHYOLITE
Sample
| Sample ID | L-74-7 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | phenos of alkali feldspar, plag, quartz, bio, horn; probably lower part of cooling unit |
Location
| Latitude | 44.9817 |
|---|---|
| Longitude | -115.083 |
| State / province | Idaho |
| Volcanic field | Challis Volcanics; Thunder Mountain cauldron complex; Lower Sunnyside unit |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 45 | 45 | 46 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 71.02 | WT% | UNKNOWN | |
| AL2O3 | 14.23 | WT% | UNKNOWN | |
| FE2O3 | 2.09 | WT% | UNKNOWN | |
| FEO | 0.58 | WT% | UNKNOWN | |
| MGO | 0.38 | WT% | UNKNOWN | |
| CAO | 1.47 | WT% | UNKNOWN | |
| NA2O | 3.15 | WT% | UNKNOWN | |
| K2O | 5.15 | WT% | UNKNOWN | |
| H2O_PLUS | 0.58 | WT% | UNKNOWN | |
| H2O_MINUS | 0.68 | WT% | UNKNOWN | |
| TIO2 | 0.4 | WT% | UNKNOWN | |
| P2O5 | 0.09 | WT% | UNKNOWN | |
| MNO | 0.04 | WT% | UNKNOWN | |
| CO2 | 0 | WT% | UNKNOWN | |
| TOTAL | 99.93 | WT% | UNKNOWN | |
| CL | 0 | WT% | UNKNOWN | |
| F | 0.07 | WT% | UNKNOWN |