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Sample WBD-7/1274.7
NavDat sample number 11112 · SYENITE
Sample
| Sample ID | WBD-7/1274.7 |
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| Rock name | SYENITE |
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| Rock type | VOLCANIC |
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| Composition | INTERMEDIATE |
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| Material | IGNEOUS |
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| Comment | occurs only in subsurface; holocrystalline; distinct cube-shaped tablets of sanidine in matrix of strontian calcite, aegirine, pyrite, pyrrhotite, chalcopyrite, fluorite, strontianite, and ancylite; matrix is between 30 and 50% of rock |
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Location
| Latitude | 44.5094 |
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| Longitude | -104.468 |
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| Location | Bear Lodge Mountains; drill core |
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| State / province | Wyoming |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 44 |
|
38 |
50 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 35.36 | | WT% | XRF |
| AL2O3 | 8.59 | | WT% | XRF |
| FE2O3T | 2.99 | | WT% | XRF |
| MGO | 0.47 | | WT% | XRF |
| CAO | 23.64 | | WT% | XRF |
| NA2O | 1.08 | | WT% | XRF |
| K2O | 7.34 | | WT% | XRF |
| TIO2 | 0.49 | | WT% | XRF |
| P2O5 | 0.17 | | WT% | XRF |
| MNO | 0.53 | | WT% | XRF |
| TOTAL | 80.66 | | WT% | XRF |
