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Sample RH-CH-886
NavDat sample number 12097 · RHYOLITE
Sample
| Sample ID | RH-CH-886 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | intrusive; hypabyssal |
|---|
Location
| Latitude | 44.5917 |
|---|
| Longitude | -114.667 |
|---|
| Location | Challis volcanic field; south of Mid Cotonwood Point lookout |
|---|
| State / province | Idaho |
|---|
| Volcanic field | Challis volcanic field |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 46 |
|
45 |
48 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 72.6 | | WT% | XRF |
| AL2O3 | 14 | | WT% | XRF |
| FE2O3 | 1.17 | | WT% | XRF |
| FEO | 0.08 | | WT% | XRF |
| MGO | 0.1 | | WT% | XRF |
| CAO | 0.81 | | WT% | XRF |
| NA2O | 3.74 | | WT% | XRF |
| K2O | 5.05 | | WT% | XRF |
| H2O_PLUS | 0.44 | | WT% | XRF |
| H2O_MINUS | 0.15 | | WT% | XRF |
| TIO2 | 0.23 | | WT% | XRF |
| P2O5 | 0 | | WT% | XRF |
| MNO | 0 | | WT% | XRF |
| CO2 | 0 | | WT% | XRF |
| TOTAL | 98.37 | | WT% | XRF |
