Galatia Channel:Stratigraphy

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	Abstract
	Introduction Geologic Setting Previous Research Crevasse-Splay Model Cyclicity and Sequence Stratigraphy Figures and Plates
	Stratigraphy Houchin Creek Coal Excello Shale Member Hanover Limestone Member Delafield Member (New) Galatia Member (New) Underclay of Springfield Coal Springfield Coal Dykersburg (Shale) Member Turner Mine Shale Member St. David Limestone Member Summary
	Other Channels Related to the Galatia Channel Sullivan Channel Effingham Channel Leslie Cemetery Channel Other Channels
	Similar Channels Affecting Other Coal Seams Colchester Coal and Francis Creek Shale Herrin Coal, Energy Shale, and Walshville Channel Baker Coal and Winslow-Henderson Channel Danville Coal Murphysboro Coal and Oraville Channel
	Discussion Model of Channel Development Linkage of Climate and Eustasy Peat Developed at Lowstand Rapid Transgression, Gradual Regression Relationship of Effingham and Galatia Channels
	Channels and Cyclothems: A Summary Model The “Typical” Cyclothem on a Cratonic Platform Cyclothem Models Do not Address Contemporaneous Channels The Gray Shale Wedge and Its Relationship to the Channel
	Conclusions
	Acknowledgments
	References
	Appendix
	Figures
	Plates

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Stratigraphy

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  Figure 4 Diagram showing units between the Houchin Creek and Herrin Coals, including members newly named in this report.
  

This section describes, in ascending order, the rock units that enclose the Springfield Coal and Galatia paleochannel(Figure 4). To facilitate discussion of the new depositional model, two new members are proposed.

Houchin Creek Coal

Excello Shale Member

Hanover Limestone Member

Delafield Member (New)

Galatia Member (New)

Underclay of Springfield Coal

Springfield Coal

Dykersburg (Shale) Member

Turner Mine Shale Member

St. David Limestone Member

Summary

Primary Source

Nelson, W.J., S.D. Elrick, W.A. DiMichele, and P.R. Ames, 2020, Evolution of a peat-contemporaneous channel: The Galatia channel, Middle Pennsylvanian, of the Illinois Basin: Illinois State Geological Survey, Circular 605, 85 p., 6 pls.