CGRG Bibliography of Canadian Geomorphology
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Author : Hardy, I.
Date : 2001.
Title : Composition of sediments in Hudson Strait and Ungava Bay.
Publication : Marine geology of Hudson Strait and Ungava Bay, Eastern Arctic Canada: Late Quaternary sediments, depositional environments, and late glacial-deglacial history derived from marine and terrestrial studies. Edited by B. Maclean; Geological Survey of Canada, Bulletin
Issue : 566:
Page(s) : 147-159.
Abstract
Information regarding the composition of surficial sediments in Hudson Strait and Ungava Bay comes primarily from BenthosTM piston cores, large diameter and AGC Long Coring Facility cores collected at some fifty localities, together with box cores, and IKUTM clam-shell grab samples from various localities. Many of the coring localities were selected to provide maximum information on the glaciomarine sediments and their chronologies with penetration to the underlying ice-contact sediments where feasible. Cores were also recovered from thick postglacial deposits. Matrix-supported diamict sediments encountered at and near the base of two cores in Eastern basin are considered to be from ice-contact deposits. These sediments were barren of macrofauna and microfauna. Glaciomarine sediments consist primarily of laminated clayey and silty sediments with some sandy components, occasional dropstones, and coarser intervals. They commonly comprise distinctive rhythmically bedded muddy and sandy sediments (cyclopsams and/or cyclopels). Postglacial muddy sediments typically are dark grey, extensively bioturbated clays. Variably sandy and gravelly sediments form a thin surface veneer in areas exposed to current winnowing.
Bibliography of Canadian Geomorphology