CGRG Bibliography of Canadian Geomorphology
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Author : Aitken, A.E.; and Risk, M.J .
Date : 1987
Title : Paleoecology of Quaternary marine sediments, Pangnirtung Fiord, Baffin Island, N.W.T.
Publication : 1987 Joint Annual Meeting of the Geological Association of Canada and the Mineralogical Association of Canada. Program with Abstracts.
Issue : 12:
Page(s) : 21
Abstract
Shallow waters macrofaunal communities in eastern Canadian arctic waters are dominated by bivalves, polychaetes and amphipods. Observations of modern animal-sediment relationships in arctic fiords have been applied in interpreting the depositional history and paleoecology of a Quaternary marine deposit in Pangnirtung Fiord, Baffin Island, N.W.T. The sedimentary sequence is characterized by the rhythmic alternation of pebbly fine sand and mud, suggesting a tidally-influenced shallow marine depositional environment. The transition from a diverse macrofauna, dominated by suspension-feeding bivalves, associated with 4 ichnogenera to a depauperate macrofauna associated with a single ichnogenus is interpreted to represent a transition from a shallow subtidal to an intertidal environment. The Quaternary marine section represents a marine offlap sequence which developed during an interval of rapid marine regression in Pangnirtung Fiord 8700-8200 a BP.
Bibliography of Canadian Geomorphology