National Geologic Map Database
General Information
- Title: Petrography of the late Tertiary volcanic ash falls in the central Great Plains [Kansas-Nebraska]
- Author(s): Swineford, Ada, Frye, J.C., and Leonard, A.B.
- Publishing Organization: Society of Economic Paleontologists and Mineralogists
- Series and Number: Journal of Sedimentary Petrology v. 25, no. 4 [p. 243-261]
- Publication Date: 1955
- Cross Section: None
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Geologic units referred to in Geolex
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