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Sample WBD-8/1631.0
NavDat sample number 11101 · SYENITE
Sample
| Sample ID | WBD-8/1631.0 |
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| Rock name | SYENITE |
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| Rock type | PLUTONIC |
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| Composition | INTERMEDIATE |
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| Material | IGNEOUS |
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| Comment | occurs only in subsurface; younger metasomatic counterpart of the natrolite-garnet syenite and malignite; holocrystalline, calcareous, and melanocratic; pseudoleucite patches enclosed in fine grained matrix of biotite, melanite garnet, aegirine, aegirine-augite |
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Location
| Latitude | 44.5091 |
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| Longitude | -104.448 |
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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 | 50.6 | | WT% | XRF |
| AL2O3 | 14.64 | | WT% | XRF |
| FE2O3T | 4.98 | | WT% | XRF |
| MGO | 1.02 | | WT% | XRF |
| CAO | 6.97 | | WT% | XRF |
| NA2O | 1.76 | | WT% | XRF |
| K2O | 10.1 | | WT% | XRF |
| TIO2 | 0.61 | | WT% | XRF |
| P2O5 | 0.25 | | WT% | XRF |
| MNO | 0.27 | | WT% | XRF |
| TOTAL | 91.2 | | WT% | XRF |
