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Sample YU-YAG222
NavDat sample number 4447 · BASALT
Sample
| Sample ID | YU-YAG222 |
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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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| Collected by | Simons, E.L. |
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| Comment | porphyritic, amygdaloidal mafic volcanic; early basalt sheet of Absaroka Mtns; encloses sediments with Eocene mammal faunas; date is probably a bit low due to Ar loss |
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Location
| Latitude | 44.2958 |
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| Longitude | -109.2 |
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| Location | NE promontory of Carter Mountain, S of Cody; Park County |
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| State / province | Wyoming |
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| Volcanic field | Trout Peak Trachyandesite? |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
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| 43.4 |
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42.4 |
44.4 |
|
|
Analyses
No chemical analyses are stored for this sample.
References
- Armstrong, Richard Lee; Speed, Robert C; Graustein, W.C.; Young, A.Y. (1976) Potassium-argon dates from Arizona, Montana, Nevada, Utah, and Wyoming. Isochron/West, vol.16, pp.1-6, 1976
