Hegeler Till Member
Willman, H. B., Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, and Jack A. Simon, 1975, Handbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.
John C. Frye and H. B. Willman
Hegeler Till Member, Banner Formation (Johnson, 1971, p. 8).
Named for the town of Hegeler, Vermilion County.
The type section is in the Harmattan Strip Mine No. 2 (SE SW SW 34, 20N-12W).
It is known in only the one locality, where it rests on rocks of Pennsylvanian age and is overlain by the Belgium Member.
Extent and thickness
It is up to 8 feet thick, greenish gray, weakly calcareous, generally massive, and compact.
The unit consists of two zones; the lower is outwash with gravelly till and the upper is silty till.
Well log characteristics
Age and correlation
Environments of deposition
JOHNSON, W. H., 1971, Old glacial drift near Danville, Illinois: Illinois State Geological Survey Circular 457, 16 p.
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