Historical:Mayfield 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
Link Web page
PDF PDF file
Store ISGS Store

Lithostratigraphy: Potsdam Sandstone Megagroup >>Mt. Simon Sandstone >>Mayfield Member
Chronostratigraphy: Paleozoic Erathem >>Cambrian System >>Croixan Series >>Dresbachian Stage
Allostratigraphy: Sauk Sequence

Author

T. C. Buschbach

Name Origin

The Mayfield Member of the Mt. Simon Sandstone (Templeton, 1950, p. 155), which overlies the Lovell Member, is named for Mayfield Township, De Kalb County.

Type Section

The type section of the Mayfield Member of the Mt. Simon Sandstone is located 5 miles east of Mayfield Township, De Kalb County. It is the interval from 2495-2850 feet deep (sample set 1301) in the same boring as the Crane Member.

Extent and Thickness

The Mayfield Member is 145-390 feet thick.

Description

It is composed of interbedded very coarse-grained conglomeratic sandstone and finer grained nonconglomeratic sandstone.

References

TEMPLETON, J. S., 1950, Mt. Simon Sandstone in northern Illinois: Illinois Academy of Science Transactions, v. 43, p. 151-159.

ISGS Codes

Stratigraphic Code Geo Unit Designation
8850
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