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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.
M. E. Hopkins and J. A. Simon
The Burroughs Limestone Member of the Modesto Formation (Ball, ''in'' Cooper, 1946, p. 12; 1952, p. 37, 38, 85; Kosanke et al., 1960, p. 38).
Named for Burroughs Branch, a tributary of Macoupin Creek, in Macoupin County.
The type section consists of outcrops along the branch on the west side of Carlinville (NW SW 27, 10N-7W).
Its position is 14-17 feet above the Carlinville Limestone and 18 feet or less below the Macoupin Limestone.
The Burroughs is recognized in only a small area in west-central Illinois, where it ranges from a fraction of an inch to more than 5 feet thick.
The Burroughs is a dark gray, sandy, clastic limestone.
It contains crinoid columnals and brachiopods.
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BALL, J. R., 1952, Geology and mineral resources of the Carlinville Quadrangle: Illinois State Geological Survey Bulletin 77, 110 p.<br>
COOPER, C. L., 1946, Pennsylvanian ostracodes of Illinois: Illinois State Geological Survey Bulletin 70, 177 p.<br>
KOSANKE, R. M., J. A. SIMON, H. R. WANLESS, and H. B. WILLMAN, 1960, Classification of the Pennsylvanian strata of Illinois: Illinois State Geological Survey Report of Investigations 214, 84 p.
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