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Sample 89-135-4
NavDat sample number 36185 · PYROCLASTIC-FALL
Sample
| Sample ID | 89-135-4 |
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| Rock name | PYROCLASTIC-FALL |
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| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
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| Comment | light-yellowish gray, fine grained; glass matrix shows relict shard structure and contains broken crystals of quartz, sanidine, plagioclase, biotite and pumice fragments |
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Location
| Latitude | 44.8494 |
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| Longitude | -113.079 |
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| State / province | Montana |
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| Volcanic field | Challis Volcanic Group |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 45.72 |
|
45.56 |
45.88 |
|
|
Analyses
No chemical analyses are stored for this sample.
