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Sample WBD-13/1376.0
NavDat sample number 11085 · SYENITE
Sample
| Sample ID | WBD-13/1376.0 |
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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 | occur only in subsurface; intensely metasomatized; holocrystalline, medium to fine grained; patches of K-feldspar and natrolite making up 20 to 40%; matrix of medium to fine grained biotite, melanite garnet, aegirine; |
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Location
| Latitude | 44.4938 |
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| Longitude | -104.368 |
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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 | 45.56 | | WT% | XRF |
| AL2O3 | 15.82 | | WT% | XRF |
| FE2O3T | 8 | | WT% | XRF |
| MGO | 1.46 | | WT% | XRF |
| CAO | 8.89 | | WT% | XRF |
| NA2O | 3.11 | | WT% | XRF |
| K2O | 7.17 | | WT% | XRF |
| TIO2 | 1.56 | | WT% | XRF |
| P2O5 | 0.27 | | WT% | XRF |
| MNO | 0.29 | | WT% | XRF |
| TOTAL | 92.13 | | WT% | XRF |
