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Sample L-1115
NavDat sample number 3859 · PHONOLITE
Sample
| Sample ID | L-1115 |
|---|
| Rock name | PHONOLITE |
|---|
| Rock type | PLUTONIC |
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| Composition | INTERMEDIATE |
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| Material | IGNEOUS |
|---|
| Collected by | author |
|---|
| Comment | phenocrysts of orthoclase and nepheline, and aegirine in sericite groundmass |
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Location
| Latitude | 44.625 |
|---|
| Longitude | -104.765 |
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| Location | NW side of Missouri Buttes |
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| State / province | Wyoming |
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| Volcanic field | Missouri Buttes pluton |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 50.9 |
|
49.2 |
52.6 |
|
|
Analyses
No chemical analyses are stored for this sample.
