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Sample RH-CH-958
NavDat sample number 12107 · RHYOLITE
Sample
| Sample ID | RH-CH-958 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | glassy and perlitic, flow-laminated porphyritic rhyolite |
|---|
Location
| Latitude | 44.6333 |
|---|
| Longitude | -114.883 |
|---|
| Location | Challis volcanic field, west of Grouse Creek Peak |
|---|
| 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 | 69 | | WT% | XRF |
| AL2O3 | 12.5 | | WT% | XRF |
| FE2O3 | 1.38 | | WT% | XRF |
| FEO | 0.34 | | WT% | XRF |
| MGO | 0.11 | | WT% | XRF |
| CAO | 0.72 | | WT% | XRF |
| NA2O | 3.03 | | WT% | XRF |
| K2O | 5.11 | | WT% | XRF |
| H2O_PLUS | 4.4 | | WT% | XRF |
| H2O_MINUS | 1.99 | | WT% | XRF |
| TIO2 | 0.2 | | WT% | XRF |
| P2O5 | 0 | | WT% | XRF |
| MNO | 0.03 | | WT% | XRF |
| CO2 | 0 | | WT% | XRF |
| TOTAL | 98.81 | | WT% | XRF |
