CGRG Bibliography of Canadian Geomorphology
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Author : Dunn, C.E.
Date : 1998
Title : Geochemistry of seafloor sediments from the Strait of Georgia, British Columbia.
Publication : Geology and Natural Hazards of the Fraser River Delta, British Columbia. Edited by: J.J. Clague; D.C. Luternauer and D.C. Mosher. Geological Survey of Canada, Bulletin
Issue : 525:
Page(s) : 257-270.
Abstract
Sediment samples from 127 seafloor sites in the Strait of Georgia were analyzed to determine the spatial distribution of a wide range of chemical elements. Concentrations are mostly close to normal background levels for marine mud; however, locally several groups of elements are relatively enriched. West of Burrard Inlet enrichments of Al, Fe, K, and Mg coincide with slightly elevated levels of Hg, Pb, Sb, Cu, F, Nb, and Rb, reflecting clay minerals, derived mostly from the Fraser River, but also from Howe Sound and Burrard Inlet. Other multi-element associations include a resistate fraction (REEs, Ti, Th, U, Be, Au); elements deposited under reducing conditions in relatively deep water (Na, Br, S, B, Mn, Co); a carbonate fraction (Ca, Sr, CO2) with Zr and Hf; and an organic fraction (C, P, As, Zn). Factor analysis provides insight to element associations and indicates a possible anthropogenic component for Ag, Ba, Cu, F, Hg, Ni, Pb, Sb, and Zn.
Bibliography of Canadian Geomorphology