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Sample CH82-34
NavDat sample number 11456 · ANDESITE
Sample
| Sample ID | CH82-34 |
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| Rock name | ANDESITE |
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| Rock type | VOLCANIC |
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| Composition | INTERMEDIATE |
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| Material | IGNEOUS |
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| Comment | very fine grained, intergranular matrix of pilotaxitic plagioclase, mafic microlites, oxides, and schlieren; scattered microphenocrysts of subcalcic augite and xenocrysts of disequilibrium quartz and K-feldspar |
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Location
| Latitude | 43.2299 |
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| Longitude | -116.889 |
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| Location | platy flow exposed along road S of Squaw Butte, Owyhee Mtns; Owyhee County |
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| State / province | Idaho |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
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| 27.7 |
|
26.3 |
29.1 |
|
|
