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Sample W-91
NavDat sample number 37028 · BASALTIC-ANDESITE
Sample
| Sample ID | W-91 |
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| Rock name | BASALTIC-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. Normal polarity; erupted from vent on /Blue Ridge. Corresponds to Wise locality 91 Wise, 1969. Olivine 1% phenocrysts in a fine-grained groundmass of plagioclase, augite, opaque minerals, sparse brown glass; sample is essentially alteraton free |
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Location
| Latitude | 46.3738 |
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| Longitude | -121.77 |
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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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| 0.22 |
|
0.13 |
0.31 |
|
|
Analyses
No chemical analyses are stored for this sample.
