← Search
Sample RH-CH-932
NavDat sample number 12103 · RHYOLITE
Sample
| Sample ID | RH-CH-932 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | younger porphyritic rhyolite dike, vertically flow laminated with stretched vesicles, vitrophyric at margins |
|---|
Location
| Latitude | 44.4833 |
|---|
| Longitude | -114.692 |
|---|
| Location | Challis volcanic field; uppermost East Fork Mayfield Creek |
|---|
| State / province | Idaho |
|---|
| Volcanic field | Challis volcanic field, rhyolite complex of East Fork Mayfield Creek |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 46 |
|
45 |
48 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 75.8 | | WT% | XRF |
| AL2O3 | 11.9 | | WT% | XRF |
| FE2O3 | 1.81 | | WT% | XRF |
| FEO | 0.18 | | WT% | XRF |
| MGO | 0.12 | | WT% | XRF |
| CAO | 0.07 | | WT% | XRF |
| NA2O | 3.88 | | WT% | XRF |
| K2O | 4.9 | | WT% | XRF |
| H2O_PLUS | 0.44 | | WT% | XRF |
| H2O_MINUS | 0.03 | | WT% | XRF |
| TIO2 | 0.13 | | WT% | XRF |
| P2O5 | 0 | | WT% | XRF |
| MNO | 0 | | WT% | XRF |
| CO2 | 0 | | WT% | XRF |
| TOTAL | 99.26 | | WT% | XRF |
