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Sample S-7
NavDat sample number 6910 · FOYAITE
Sample
| Sample ID | S-7 |
|---|
| Rock name | FOYAITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | MAFIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | porphyritic; phenocrysts of alkali feldspar, aegirine/augite, hornblende, analcime, and biotite; groundmass is microcrystalline, trachytic, and hypidiomorphic granular |
|---|
Location
| Latitude | 44.388 |
|---|
| Longitude | -104.381 |
|---|
| Location | Sundance area, Crook Couty |
|---|
| State / province | Wyoming |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 42 |
|
36.7 |
63.5 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 58.11 | | WT% | XRF |
| AL2O3 | 21.31 | | WT% | XRF |
| FEO | 2.15 | | WT% | XRF |
| MGO | 0.32 | | WT% | XRF |
| CAO | 1.69 | | WT% | XRF |
| NA2O | 7.7 | | WT% | EPMA |
| K2O | 6.57 | | WT% | XRF |
| TIO2 | 0.05 | | WT% | XRF |
| P2O5 | 0.12 | | WT% | XRF |
| MNO | 0.29 | | WT% | XRF |
| CL | 0.03 | | WT% | EPMA |
| TOTAL | 98.34 | | WT% | XRF |
