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Sample OM-2
NavDat sample number 32814 · RHYOLITE
Sample
| Sample ID | OM-2 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | finely flow laminated; phenos of plag, quartz, K-feld, pyroxene pseudomorphs; upper two thirds of unit is blocky, lithophyssal, and contains larger and more abundant quartz and biotite |
|---|
Location
| Latitude | 43.1135 |
|---|
| Longitude | -116.691 |
|---|
| Location | Tiddie Springs |
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| State / province | Idaho |
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| Volcanic field | correlated with rhyolite of Silver City Range |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 16 |
|
15 |
17 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 76.78 | | WT% | XRF |
| AL2O3 | 12.86 | | WT% | XRF |
| FE2O3 | 0.62 | | WT% | XRF |
| FEO | 0.23 | | WT% | XRF |
| MGO | 0 | | WT% | XRF |
| CAO | 0.74 | | WT% | XRF |
| NA2O | 2.9 | | WT% | XRF |
| K2O | 5.25 | | WT% | XRF |
| H2O_PLUS | 0.36 | | WT% | XRF |
| H2O_MINUS | 0.32 | | WT% | XRF |
| TIO2 | 0.27 | | WT% | XRF |
| P2O5 | 0.04 | | WT% | XRF |
| MNO | 0.1 | | WT% | XRF |
| CO2 | 0.11 | | WT% | XRF |
| TOTAL | 100.58 | | WT% | XRF |
