Sample L-56-1361
NavDat sample number 12078 · DACITE
Sample
| Sample ID | L-56-1361 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | phenos of plag and chloritized pyr; pilotaxitic groundmass |
Location
| Latitude | 45.1778 |
|---|---|
| Longitude | -115.381 |
| State / province | Idaho |
| Volcanic field | Challis Volcanics; Thunder Mountain cauldron complex |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 47 | 45 | 49 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 61.9 | WT% | UNKNOWN | |
| AL2O3 | 17.3 | WT% | UNKNOWN | |
| FE2O3 | 3.2 | WT% | UNKNOWN | |
| FEO | 2.7 | WT% | UNKNOWN | |
| MGO | 1.4 | WT% | UNKNOWN | |
| CAO | 3.9 | WT% | UNKNOWN | |
| NA2O | 3.5 | WT% | UNKNOWN | |
| K2O | 3.2 | WT% | UNKNOWN | |
| H2O_PLUS | 1 | WT% | UNKNOWN | |
| H2O_MINUS | 0.2 | WT% | UNKNOWN | |
| TIO2 | 0.96 | WT% | UNKNOWN | |
| P2O5 | 0.3 | WT% | UNKNOWN | |
| MNO | 0.09 | WT% | UNKNOWN | |
| CO2 | -0.05 | WT% | UNKNOWN | |
| TOTAL | 99.76 | WT% | UNKNOWN | |
| CL | 0.01 | WT% | UNKNOWN | |
| F | 0.1 | WT% | UNKNOWN |