CGRG Bibliography of Canadian Geomorphology
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Author : Gilbert, R., Aitken, A. E., and Lemmen, D. S.
Date : 1993
Title : The glacimarine sedimentary environment of Expedition Fiord, Canadian High Arctic
Publication : Marine Geology.
Issue : 110(3-4):
Page(s) : 257-273
Abstract
Expedition Fiord is a small, shallow inlet on the west coast of Axel Heiberg Island near 80 deg N latitude. Subbottom acoustic survey and cores from the fiord floor were used to assess the sedimentary environment. Most of the sediment is deposited within 3 km of the inflow at the head from suspension in the overflowing cap and by gravity flows on the foreset beds of the delta. Occasionally, weak turbidity currents reach the mid fiord where they deposit fine-grained sediment. Icebergs from a large calving glacier in an adjacent fiord raft additional sediment, especially to the outer part of the fiord. They also scour the seafloor, although the persistent ice cover and slow currents in the fiord restrict this process. Except near the inflow, the total sediment accumulation since deglaciation is less than 20 m, and the rates of 0.5-1 mm/a have not varied signficantly to the present.
Bibliography of Canadian Geomorphology