Sample 83GM105
NavDat sample number 12081 · RHYODACITE
Sample
| Sample ID | 83GM105 |
|---|---|
| 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 | 45.05 |
|---|---|
| Longitude | -115.355 |
| 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 | 63.6 | WT% | UNKNOWN | |
| AL2O3 | 15.4 | WT% | UNKNOWN | |
| FE2O3 | 1.33 | WT% | UNKNOWN | |
| FEO | 2.54 | WT% | UNKNOWN | |
| MGO | 1.65 | WT% | UNKNOWN | |
| CAO | 3.77 | WT% | UNKNOWN | |
| NA2O | 3.3 | WT% | UNKNOWN | |
| K2O | 3.7 | WT% | UNKNOWN | |
| H2O_PLUS | 1.58 | WT% | UNKNOWN | |
| H2O_MINUS | 0.1 | WT% | UNKNOWN | |
| TIO2 | 0.57 | WT% | UNKNOWN | |
| P2O5 | 0.18 | WT% | UNKNOWN | |
| MNO | 0.06 | WT% | UNKNOWN | |
| CO2 | 1.48 | WT% | UNKNOWN | |
| TOTAL | 99.32 | WT% | UNKNOWN | |
| CL | -0.01 | WT% | UNKNOWN | |
| F | 0.06 | WT% | UNKNOWN |