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Sample 13
NavDat sample number 4655 · RHYODACITE
Sample
| Sample ID | 13 |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
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| Comment | phenocrysts of plagioclase, hornblende, and biotite in cryptofelsite groundmass traversed by abundant microliths of oligoclase |
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Location
| Latitude | 39.2737 |
|---|
| Longitude | -121.762 |
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| Location | from NE margin of the buttes |
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| State / province | California |
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| Volcanic field | Sutter Buttes |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.4 |
|
1.26 |
1.54 |
|
|
Analyses
No chemical analyses are stored for this sample.
