Wonewoc Formation (IACAw;0)

Wonewoc Formation

Surface exposures limited to northeastern Allamakee County; subcrops beneath Mississippi River alluvium in Allamakee County. Includes Ironton and Galesville members. Primary lithology: sandstone, fine to coarse grained, upper part fossiliferous (Ironton). Thicknesses: 125-155 ft (38-47 m).

State	Iowa
Name	Wonewoc Formation
Geologic age	Middle-Upper Cambrian, upper Marjuman-Steptoean (formerly upper Dresbachian-lower Franconian)
Lithologic constituents	Major Sedimentary > Clastic > Sandstone (Bed)fine to coarse grained, upper part fossiliferous (Ironton)
References	Witzke, Brian J., Anderson, Raymond R., and Pope, John P., 2010, Iowa Geological and Water Survey, DNR, Bedrock Geologic Map of Iowa, OFM-2010-1. Scale 1:500,000.
NGMDB product	NGMDB product page for 96753
Counties	Allamakee

Wonewoc Formation

Witzke, Brian J., Anderson, Raymond R., and Pope, John P., 2010, Iowa Geological and Water Survey, DNR, Bedrock Geologic Map of Iowa, OFM-2010-1. Scale 1:500,000.