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Sample A-33
NavDat sample number 11656 · GNEISS
Sample
| Sample ID | A-33 |
|---|
| Rock name | GNEISS |
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| Rock type | PLUTONIC |
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| Material | IGNEOUS |
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| Comment | texture ranges from granoblastic to lepidoblastic; foliation is defined by biotite; polygonal grain boundaries common |
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Location
| Latitude | 46.5447 |
|---|
| Longitude | -114.32 |
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| Location | from talus approximately 0.4 km north of the northern tip of SOuth Kootenai Lake along the SE side of a ridge |
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| State / province | Montana |
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| Volcanic field | Idaho Batholith, Bitterroot Lobe outlier |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 73.6 |
|
67.6 |
79.6 |
|
|
Analyses
No chemical analyses are stored for this sample.
