Historical:Mooseheart Member

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Handbook of Illinois Stratigraphy
Series Bulletin 95
Author H. B. Willman, Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, Jack A. Simon
Date 1975
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Lithostratigraphy: Knox Dolomite Megagroup >>Ironton Sandstone >>Mooseheart Member
Chronostratigraphy: Paleozoic Erathem >>Cambrian System >>Croixan Series >>Franconian Stage
Allostratigraphy: Sauk Sequence

Author

T. C. Buschbach

Name Origin

The Mooseheart Member of the Ironton Sandstone (Buschbach, 1964, p. 37), the uppermost member, is named for a Kane County lake, Mooseheart Lake.

Type Section

The type section is located 2 miles northeast of Mooseheart Lake in Kane County and is at a depth of 1092-1120 feet in the same well as the Buelter type section.

Extent and Thickness

The Mooseheart Member is 20-60 feet thick.

Description

The Mooseheart Member consists of poorly sorted, medium- to coarse-grained dolomitic sandstone. Coarse grains of glauconite occur in the upper beds.

References

BUSCHBACH, T. C., 1964, Cambrian and Ordovician strata of northeastern Illinois: Illinois State Geological Survey Report of Investigations 218, 90 p.

ISGS Codes

Stratigraphic Code Geo Unit Designation
8700
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