Ancell Group (WIOa;0)

Orthoquartzitic sandstone with minor limestone, shale and conglomerate; includes Glenwood and St. Peter Formations

State	Wisconsin
Name	Ancell Group
Geologic age	Ordovician
Lithologic constituents	Major Sedimentary > Clastic > Sandstoneorthoquartzitic sandstone with minor limestone, shale and conglomerate; includes Glenwood and St. Peter Formations Minor Sedimentary > Carbonate > Limestoneorthoquartzitic sandstone with minor limestone, shale and conglomerate; includes Glenwood and St. Peter Formations Incidental Sedimentary > Clastic > Conglomerateorthoquartzitic sandstone with minor limestone, shale and conglomerate; includes Glenwood and St. Peter Formations Sedimentary > Clastic > Mudstone > Shaleorthoquartzitic sandstone with minor limestone, shale and conglomerate; includes Glenwood and St. Peter Formations
References	Mudrey, M.G., Jr., Brown, B.A., and Greenberg, J.K., 1982, Bedrock Geologic Map of Wisconsin: University of Wisconsin-Extension, Geological and Natural History Survey, scale 1:1,000,000.
NGMDB product	NGMDB product page for 10177 NGMDB product page for 49339
Counties	Buffalo - Columbia - Crawford - Dane - Dodge - Fond du Lac - Grant - Green - Green Lake - Iowa - Jefferson - Lafayette - Marinette - Oconto - Outagamie - Pierce - Richland - Rock - Saint Croix - Shawano - Vernon - Winnebago