Biogenic opal and diatoms in surface sediments of the South Western Atlantic, supplement to: Romero, Oscar E; Hensen, Christian (2002): Oceanographic control of biogenic opal and diatoms in surface sediments of the South Western Atlantic. Marine Geology, 186(3-4), 263-280

Oscar E Romero & Christian Hensen
Based on 66 surface sediment samples collected in the SW Atlantic Ocean between 27 and 50°S, this study presents an overview of the spatial distribution of biogenic opal and diatom concentrations, and diatom assemblages. Biogenic opal has highest values in the deepest, pelagic stations and decreases toward the slope. Diatoms closely follow the spatial trend of opal. Diatom assemblages reflect the present-day dominant hydrographical features. Antarctic diatoms are the main contributors to the preserved diatom...
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