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Sample BL-27
NavDat sample number 6911 · FOYAITE
Sample
| Sample ID | BL-27 |
|---|
| Rock name | FOYAITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | MAFIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | porphyritic; phenocrysts of alkali feldspar, aegirine/augite, hornblende, analcime; groundmass is fine-grained, phaneritic |
|---|
Location
| Latitude | 44.4378 |
|---|
| Longitude | -104.422 |
|---|
| 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 | 57.58 | | WT% | XRF |
| AL2O3 | 21.51 | | WT% | XRF |
| FEO | 1.9 | | WT% | XRF |
| MGO | 0.11 | | WT% | XRF |
| CAO | 1.45 | | WT% | XRF |
| NA2O | 8.23 | | WT% | EPMA |
| K2O | 7.15 | | WT% | XRF |
| TIO2 | 0.07 | | WT% | XRF |
| P2O5 | 0.11 | | WT% | XRF |
| MNO | 0.23 | | WT% | XRF |
| CL | 0.18 | | WT% | EPMA |
| SO3 | 0.6 | | WT% | EPMA |
| TOTAL | 99.12 | | WT% | XRF |
