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Sample AV-7
NavDat sample number 5585 · RHYOLITE
Sample
| Sample ID | AV-7 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Collected by | R.A. Chadwick |
|---|
| Comment | gray and red with fresh sanidine and dark-gray quartz phenocrysts and minor hematitized biotite |
|---|
Location
| Latitude | 46.5942 |
|---|
| Longitude | -112.579 |
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| Location | roadcut, Highway 12, 1.5 km E of Avon; Powell County |
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| State / province | Montana |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 19.6 |
|
18.8 |
20.4 |
|
|
Analyses
No chemical analyses are stored for this sample.
