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U.S. Geological Survey Open-File Report 2009-1137

Quaternary Geologic Framework of the St. Clair River between Michigan and Ontario, Canada

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Table 1. Stratigraphic column for the northernmost St. Clair River area (Morris, 2008), with correlations to seismic stratigraphic units Devonian shale (Ds), Quaternary glacial drift (Qd), and Quaternary undifferentiated (Qu).  Qu includes glaciofluvial, glaciolacustrine, fluvial, and lacustrine deposits. Major unconformities are the top of Devonian shale (DsU) and the top of glacial drift (QdU).

Table 1, stratigraphic column. Major unconformities are the top of Devonian shale (DsU) and the top of glacial drift (QdU).


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