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Sample CH83-60B
NavDat sample number 11445 · BASALT
Sample
| Sample ID | CH83-60B |
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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 | medium grained, subophitic to intergranular matrix of plagioclase, augite, olivine, and oxide; interstitial oxide-rich mesostasis; porphyritic and glomeroporphyritic laths and phenocrysts of plagioclase, some resorbed with poikilitic olivine and oxide |
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Location
| Latitude | 42.9592 |
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| Longitude | -118.191 |
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| Location | third flow from top flow no. 3 of uplifted rim exposing 34 basalt flows at W margin Sheepshead Mtns; Malheur County |
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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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| 14.8 |
|
14 |
15.6 |
|
|
