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Daysville Dolomite Member
|category9=Dolomite |tree4=Daysville Dolomite Member

3 KB (366 words) - 18:27, 12 January 2017
Glenwood Formation
...ndbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p. The Glenwood, a highly varied unit of sandstone, dolomite, and shale overlying the St. Peter Sandstone, is named for Glenwood Townshi

5 KB (682 words) - 18:18, 12 January 2017
Ottawa Limestone Megagroup
...ndbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p. ...the St. Peter Sandstone is absent, the Ottawa Megagroup rests on the Knox Dolomite Megagroup but generally is readily distinguished from it.

3 KB (372 words) - 16:34, 12 January 2017
Loughridge Sandstone Member
|tree4=Loughridge Sandstone Member ...ndbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.

2 KB (319 words) - 18:22, 12 January 2017
Nokomis Sandstone Member
|tree4=Nokomis Sandstone Member ...ndbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.

3 KB (337 words) - 18:26, 12 January 2017

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