CGRG Bibliography of Canadian Geomorphology
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Author : Chague, G.C.; Hamilton, T.S.; and Scott, D.B.
Date : 2001.
Title : Geochemical evidence for the recent changes in a salt marsh, Chezzetcook Inlet, Nova Scotia, Canada.
Publication : Proceedings of the Nova Scotian Institute of Science
Issue : 41(4):
Page(s) : 149-159.
Abstract
Sediment cores were collected from the salt marsh located in the West Head of Chezzetcook Inlet, and analyzed to determine the recent changes in geochemistry as a result of both natural and anthropogenic influence. (super 137) Cs dating was used to determine the accretion rates and shows that the sedimentation rates have been slightly higher in the high marsh than in the middle marsh for the last 30 years, probably as a result of increased terrestrial sediment influx. Elemental distribution is mainly related to mineral matter abundance and variety (e.g. mica, halite). However, elevated concentrations of Fe, Ni, Co, Mo and As near the surface of the marsh sequence at the landward edge of the marsh is attributed to anthropogenic input related to the recent road construction, while an elemental enrichment at about 1 m depth is attributed to diagenetic processes, which have resulted in elemental precipitation as sulfides at the boundary between the oxidized and reduced sediment layer.
Bibliography of Canadian Geomorphology