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Sample KW-914-67
NavDat sample number 4101 · RHYOLITE
Sample
| Sample ID | KW-914-67 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
|---|
| Collected by | K.L. Wier |
|---|
| Comment | light-grey; phenocrysts of oligoclase and also biotite and quartz; cloudy groundmass of felsic crystallites |
|---|
Location
| Latitude | 45.2467 |
|---|
| Longitude | -112.098 |
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| Location | from quarry; Madison County |
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| State / province | Montana |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 44.7 |
|
43 |
46.4 |
|
|
Analyses
No chemical analyses are stored for this sample.
