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Sample DPCK-1
NavDat sample number 37029 · ANDESITE
Sample
| Sample ID | DPCK-1 |
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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 | roadcut in lava flow from Mt Defaince. Normal polarity. Seriate plagioclase 10%, augite 2-3%, and olivine 1-2% phenocrysts in an intergranular groundmass of plagioclase, pyroxene and opaquemierals; traces of alteration and oxidation are present inboth olivine phenocrysts and groundmass |
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Location
| Latitude | 45.6023 |
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| Longitude | -121.655 |
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| State / province | Oregon |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.5 |
|
0.44 |
0.56 |
|
|
Analyses
No chemical analyses are stored for this sample.
