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Sample 54-S81
NavDat sample number 19146 · RHYODACITE
Sample
| Sample ID | 54-S81 |
|---|
| Rock name | RHYODACITE |
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| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
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| Collected by | B. Skipp |
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| Comment | porphyritic |
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Location
| Latitude | 44.45 |
|---|
| Longitude | -112.983 |
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| Location | Beaverhead Mountains; Beaverhead County |
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| State / province | Montana |
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| Volcanic field | Challis Volcanics |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 49 |
|
46 |
52 |
|
|
Analyses
No chemical analyses are stored for this sample.
References
- Marvin, Richard F; Mehnert, Harald H; Naeser, Charles W; Zartman,Robert E (1989) U. S. Geological Survey radiometric ages; Compilation C; Part five;Colorado, Montana, Utah, and Wyoming. Isochron/West, vol.53, pp.14-19, Jun 1989
