Sample L-61-229
NavDat sample number 12084 · RHYOLITE
Sample
| Sample ID | L-61-229 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | phenos of plag, alkali feld, quartz, chloritized pyr, horn, bio; contains pumice lapilli |
Location
| Latitude | 45.04 |
|---|---|
| Longitude | -115.37 |
| State / province | Idaho |
| Volcanic field | Challis Volcanics; Thunder Mountain cauldron complex |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 47 | 47 | 48 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 69.57 | WT% | UNKNOWN | |
| AL2O3 | 14.94 | WT% | UNKNOWN | |
| FE2O3 | 1.45 | WT% | UNKNOWN | |
| FEO | 1.25 | WT% | UNKNOWN | |
| MGO | 0.75 | WT% | UNKNOWN | |
| CAO | 1.03 | WT% | UNKNOWN | |
| NA2O | 3.86 | WT% | UNKNOWN | |
| K2O | 4.46 | WT% | UNKNOWN | |
| H2O_PLUS | 1.18 | WT% | UNKNOWN | |
| H2O_MINUS | 0.58 | WT% | UNKNOWN | |
| TIO2 | 0.32 | WT% | UNKNOWN | |
| P2O5 | 0.07 | WT% | UNKNOWN | |
| MNO | 0.05 | WT% | UNKNOWN | |
| CO2 | 0.12 | WT% | UNKNOWN | |
| TOTAL | 99.69 | WT% | UNKNOWN | |
| CL | 0.01 | WT% | UNKNOWN | |
| F | 0.05 | WT% | UNKNOWN |