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Sample WHR-3
NavDat sample number 37057 · BASALT
Sample
| Sample ID | WHR-3 |
|---|
| Rock name | BASALT |
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| Rock type | VOLCANIC |
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| Composition | MAFIC |
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| Material | IGNEOUS |
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| Comment | Reversed-polarity. Sparse olivine and plagioclase and rare augite phenocrysts in an intergranular groundmass of plagioclase, augite, opaque minerals, and brown , oxidized orthopyroxene?; most olivine phenocrysts are altered along margins and fractures to fine-grained to the fine-grained micas? or cryptocrystalline material. |
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Location
| Latitude | 45.4862 |
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| Longitude | -121.773 |
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| State / province | Oregon |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 4.38 |
|
3.99 |
4.77 |
|
|
Analyses
No chemical analyses are stored for this sample.
