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Sedimentation and the distribution of organic matter in a sub-Antarctic marine bay

Authors
Journal
Estuarine and Coastal Marine Science
0302-3524
Publisher
Elsevier
Publication Date
Volume
9
Issue
1
Identifiers
DOI: 10.1016/0302-3524(79)90006-9
Keywords
  • Sedimentation
  • Sediment Traps
  • Organic Matter
  • Sediment Cores
  • Pollutant Persistence
  • Coastal Waters
  • Antarctic Ocean

Abstract

Abstract The annual rate of sediment accumulation and the proportion due to resuspension in a sheltered sub-Antarctic bay has been deduced from sediment trap experiments and vertical profiles of organic matter in the sea bed. A dry weight sediment accumulation of 2·8 × 10 3 gm −2year −1 is suggested with an organic input of 60 g carbon m −2year −1. Seasonal variations in sedimentation are associated with winds and land runoff. Residual organic matter in deep sediment profiles reflect the recent history of pollution in the area and provides a means of dating the sediments.

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