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Sample S91-H197
NavDat sample number 37047 · BASALT
Sample
| Sample ID | S91-H197 |
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| 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 | Roadcut in lava flow near Horkelia Meadows. Magnetic polarity not measured because roadcut is shattered by construction work. Augite 3-5%, olivine 2-3%, and plagioclase <1% phenocrysts in an intergranular groundmass of plagioclase, augite, opaque minerals, and traces of phlogopite; essentially alteration free |
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Location
| Latitude | 45.3908 |
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| Longitude | -121.539 |
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| State / province | Oregon |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
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| 2.52 |
|
2.39 |
2.65 |
|
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Analyses
No chemical analyses are stored for this sample.
