Sample 83GM101
NavDat sample number 12082 · RHYODACITE
Sample
| Sample ID | 83GM101 |
|---|---|
| Rock name | RHYODACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | phenos of plag, quartz, pyr, horn; shards in groundmass; pumice lapilli present |
Location
| Latitude | 45.0467 |
|---|---|
| Longitude | -115.348 |
| 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 | 63.9 | WT% | UNKNOWN | |
| AL2O3 | 15 | WT% | UNKNOWN | |
| FE2O3 | 1.34 | WT% | UNKNOWN | |
| FEO | 2.44 | WT% | UNKNOWN | |
| MGO | 1.5 | WT% | UNKNOWN | |
| CAO | 3.3 | WT% | UNKNOWN | |
| NA2O | 3.33 | WT% | UNKNOWN | |
| K2O | 3.72 | WT% | UNKNOWN | |
| H2O_PLUS | 1.82 | WT% | UNKNOWN | |
| H2O_MINUS | 0.32 | WT% | UNKNOWN | |
| TIO2 | 0.54 | WT% | UNKNOWN | |
| P2O5 | 0.17 | WT% | UNKNOWN | |
| MNO | 0.06 | WT% | UNKNOWN | |
| CO2 | 1.78 | WT% | UNKNOWN | |
| TOTAL | 99.26 | WT% | UNKNOWN | |
| CL | -0.01 | WT% | UNKNOWN | |
| F | 0.04 | WT% | UNKNOWN |