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Sample L-1026a
NavDat sample number 3863 · GNEISS
Sample
| Sample ID | L-1026a |
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| Rock name | GNEISS |
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| Rock type | PLUTONIC |
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| Material | IGNEOUS |
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| Collected by | author |
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| Comment | medium grained; light bands of quartz, dark bands of biotite; plagioclase and orthoclase subordinate in both bands |
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Location
| Latitude | 46.1922 |
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| Longitude | -114.23 |
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| Location | Skalkaho Creek, 4.75 miles WSW of Grantsdale |
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| State / province | Montana |
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| Volcanic field | Idaho batholith |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 63.7 |
|
61.8 |
65.6 |
|
|
Analyses
No chemical analyses are stored for this sample.
