Historical:Kingdom Sandstone Member
Lithostratigraphy: Ottawa Limestone Megagroup >>Ancell Group >>Glenwood Formation >>Kingdom Sandstone Member
Chronostratigraphy: Paleozoic Erathem >>Ordovician System >>Champlainian Series >>Blackriveran Stage
Allostratigraphy: Tippecanoe Sequence
Authors
H. B. Willman and T. C. Buschbach
Name Origin
The Kingdom Sandstone Member of the Glenwood Formation (Templeton and Willman, 1963, p. 49), the basal member, is named for Kingdom, Lee County.
Type Section
The type section of the Kingdom Member is located 3 miles north of Kingdom, Lee County, in a ravine in Ogle County (NE SE NW 36, 23N-9E) where it is 7.9 feet thick.
Extent and Thickness
The Kingdom Member commonly is 5-20 feet thick but has a maximum thickness of 40 feet.
Stratigraphic Position
In most of the outcrops the Kingdom Member has a sharp contact with the underlying Tonti Sandstone Member of the St. Peter. It thins northward and westward as it grades into the overlying Daysville Member, and farther north the Kingdom Member is equivalent to the lower part of the Nokomis Member.
Description
The Kingdom Member has the poor sorting typical of the Glenwood texture.
References
TEMPLETON, J. S., and H. B. WILLMAN, 1963, Champlainian Series (Middle Ordovician) in Illinois: Illinois State Geological Survey Bulletin 89, 260 p.
ISGS Codes
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