U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Weldon River

Usage:

Weldon River Sandstone Member of Shale Hill Formation of Pleasanton Group (IA,MO)


Geologic age:

Late Pennsylvanian (Missourian)


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

Type area: exposures along Weldon River, Mercer and Grundy Cos., MO. Named from Weldon River (Howe, 1982; Gentile and Thompson, 2004).


AAPG geologic province:

Forest City basin
Lincoln anticline
Iowa shelf


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 ([ ]).