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The major deglacial-phase deposits of eastern Maine include stratified end moraines, single and amalgamated ice-margin delta complexes, extensive segmented esker systems that link with marine deltas and fans, and a fossiliferous glacial marine mud (the Presumpscot Formation) that is interbedded with, or drapes, the other deposits. Previous work has determined that deposition within the 40-km-wide swath, which is now the modern coastal zone, occurred between 13,500 and 12,500 B.P.

Detailed mapping, measurement of stratigraphic sections and paleocurrents, and calculation of drainage basin area and volume of sediment bodies have led to a better understanding of lithofacies assemblages, depositional processes, sediment...

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