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Sample S91-H215
NavDat sample number 37053 · BASALT
Sample
| Sample ID | S91-H215 |
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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 | Quarry in lava flow on northwest slope of North Mountain. Indeterminate magnetic polarity by flugxgate magnetometer at this site. Seriate olivine 5% and augite 3% in a well-crystallized intergranular groundmass of plagioclase, augite, opaque minerals, and phlogopite; essentially alteration free. |
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Location
| Latitude | 45.402 |
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| Longitude | -121.966 |
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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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| 3.3 |
|
3.08 |
3.52 |
|
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Analyses
No chemical analyses are stored for this sample.
