National Geologic Map Database
General Information
- Title: Unkpapa Sandstone (Jurassic), Black Hills, South Dakota; an eolian facies of the Morrison Formation
- Author(s): Szigeti, G.J., and Fox, J.E.
- Publishing Organization: Society of Economic Paleontologists and Mineralogists
- Series and Number: Special Publication no. 31 [p. 331-349]
- Larger Work: Ethridge, F.G., and Flores, R.M., eds., Recent and ancient nonmarine depositional environments; models for exploration
- Publication Date: 1981
- Map Scale: 1:1,949,538
- Cross Section: Yes
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.