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Geologic Unit: Houx
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  • Usage in publication:
    • Houx Limestone Member
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Iowa shelf
Publication:

Ravn, R.L., Swade, J.W., Howes, M.R., Gregory, J.T., Anderson, R.R., and Van Dorpe, P.E., 1984, Stratigraphy of the Cherokee Group and revision of Pennsylvanian stratigraphic nomenclature in Iowa: Iowa Geological Survey Bureau Technical Information Series, no. 12.


Summary:

Reassigned from Little Osage Shale to Stephens Forest Formation (new) of Marmaton Group of Des Moines Supergroup. Is a thin regressive limestone present over all of south-central IA on the Iowa shelf. Ranges between 0.3 to almost 1 ft thick. Overlies Little Osage Shale Member (restricted to beds above the Summit Coal Member of the Morgan School Shale (new) of Marmaton Group of Stephens Forest Formation. Underlies the unnamed shale member of the Stephens Forest Formation. Nomenclature chart. Graphic section. Of Pennsylvanian, Desmoinesian age.

Source: GNU records (USGS DDS-6; Denver GNULEX).


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).

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