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Sample USGSD-395-1
NavDat sample number 7973 · RHYOLITE
Sample
| Sample ID | USGSD-395-1 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
|---|
| Comment | vitrophyric; plagioclase, microcline, biotite, partly resorbed quartz, and microlites |
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Location
| Latitude | 45.6597 |
|---|
| Longitude | -112.776 |
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| Location | correlates with Lowland Creek Volcanics of Smedes and Thomas 1965; Beaverhead County |
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| State / province | Montana |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 50.4 |
|
48.7 |
52.1 |
|
|
Analyses
No chemical analyses are stored for this sample.
