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Sample 4
NavDat sample number 3769 · RHYOLITE
Sample
| Sample ID | 4 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 40.4958 |
|---|
| Longitude | -105.858 |
|---|
| Location | west side of Iron Mt |
|---|
| State / province | Colorado |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 28 |
|
26.5 |
28.5 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 72.2 | | WT% | XRF |
| TIO2 | 0.2 | | WT% | XRF |
| P2O5 | 0.1 | | WT% | XRF |
| AL2O3 | 13.8 | | WT% | XRF |
| FE2O3 | 0.9 | | WT% | XRF |
| FEO | 0.4 | | WT% | XRF |
| CAO | 0.7 | | WT% | XRF |
| MGO | 0.3 | | WT% | XRF |
| NA2O | 4.3 | | WT% | XRF |
| K2O | 6 | | WT% | XRF |
| H2O | 0.8 | | WT% | XRF |
| TOTAL | 99.7 | | WT% | XRF |
