Bremen Anticline

Location

T6S, R6W, Randolph County (J-4)

References

S. Weller 1915, Kay 1916, S. Weller and J. Weller 1939, Nelson and Krausse 1981

Description

This structure was defined from outcrop mapping of Chesterian strata (S. Weller 1915, Kay 1916). The axis trends N70°E and is less than 3 miles (5 km) long. The northwest limb is steeper and has dips as steep as 13°, as compared with only 2° on the southeast flank. Cady (ISGS unpublished field notes) reported a dip of 45° on one outcrop along the northwest flank of the fold. A steep dip suggests the possibility of faulting.

Nelson and Krausse (1981) observed that the Bremen Anticline, along with the Wine Hill Dome and Campbell Hill Anticline, is in line with and oriented en echelon to the Cottage Grove Fault System. These relationships suggest that all three folds are products of right-lateral wrenching along the Cottage Grove.