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National Geologic Map Database

Geologic Unit: Popcorn

Usage:

Popcorn Sandstone Bed of Shetlerville Member of Renault Limestone (IL,KY)
(†Popcorn Sandstone Bed of Paoli Limestone abandoned by the IN Geol. Survey (type locality in IN). Replaced with Aux Vases Member of Paoli Limestone of Blue River Group. See Aux Vases.)


Geologic age:

Middle Mississippian (Visean; early Chesterian)


Type section, locality, area and/or origin of name:

Type section: on hillside about 50 ft above Popcorn Spring, 3.5 mi northwest of Springville, about 700 ft west of Popcorn Church, and 200 ft north of section line, SE/4 SE/4 sec. 5, T. 6 N., R. 2 W., Owensburg quadrangle, Lawrence Co., IN (Swann, 1963).


AAPG geologic province:

Illinois basin


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

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).