Abstract
An assemblage of landforms in a complex interlobate area in southeast Michigan may be used to identify the surficial contact between Saginaw and Huron-Erie drifts even though the sediments from both glacial lobes appear similar and cannot be reliably differentiated in the field. The correct placement of the boundary is confirmed by X-ray diffraction data for clay-sized particles from more than forty drift samples. This study demonstrates that in some instances morphology may equal or exceed the usefulness of rock-, soil-, and geologic-climate units for the determination of certain stratigraphic relationships.
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