Abstract

Baffin Bay sediments are predominantly mud, with minor amounts of sand and gravel. Median grain sizes are related to bottom topography, being coarsest over topographic highs and finer in the central basin. Some sorting is accomplished by the Baffin Land Current. Ice-rafting of pebbles is recognized. Sediment texture is generally coarser with depth, indicating a decrease in current competence with time, and is in accord with the postglacial sea-level rise in the area. Sand occurs in cores from the deepest part of the bay. Downslope-moving bottom currents or suspended-flow phenomena are cited as the transporting agent. Much of the sand is composed of mud aggregates, however, and it appears that the beds containing these features were deposited as 'fluxoturbidites' or submarine slumps.

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