Galatia Channel:Discussion

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Discussion

Observations from mines and boreholes through the Galatia channel and related features, as well as similar channels associated with older and younger coal beds, indicate that the old model of a Mississippi-style delta having natural levees and crevasse splays is due for revision. Combined with a better understanding and climate influences not available to earlier workers, these observations lead to a new model of channel development that has connotations for larger concepts of cyclic sedimentation.

Model of Channel Development

Model of Channel Development

Linkage of Climate and Eustasy

Linkage of Climate and Eustasy

Peat Developed at Lowstand

Peat Developed at Lowstand

Rapid Transgression, Gradual Regression

Rapid Transgression, Gradual Regression

Relationship of Effingham and Galatia Channels

Relationship of Effingham and Galatia Channels

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.

References


Notes