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Sample Feb-50
NavDat sample number 8446 · TRACHYTE
Sample
| Sample ID | Feb-50 |
|---|
| Rock name | TRACHYTE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | porphyritic; phenocrysts of sanidine, Na-ferroaugite, and sphene; groundmass of microcrystalline sanidine, quartz, acicular Na-ferroaugite, dolomite, magnetite, and apatite |
|---|
Location
| Latitude | 44.5207 |
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| Longitude | -104.503 |
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| Location | Bear Lodge Mountain igneous complex |
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| State / province | Wyoming |
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| Volcanic field | Lytle Creek area |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 42 |
|
36.7 |
63.5 |
|
|
