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Journal of Micropalaeontology An open-access journal of The Micropalaeontological Society
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Volume 2, issue 1
J. Micropalaeontol., 2, 31–38, 1983
https://doi.org/10.1144/jm.2.1.31
© Author(s) 1983. This work is distributed under
the Creative Commons Attribution 4.0 License.
J. Micropalaeontol., 2, 31–38, 1983
https://doi.org/10.1144/jm.2.1.31
© Author(s) 1983. This work is distributed under
the Creative Commons Attribution 4.0 License.

  01 Jul 1983

01 Jul 1983

The distribution of Recent Radiolaria in surficial sediments of the continental margin off northern Namibia

Simon Robson Simon Robson
  • Marine Geoscience Unit, University of Cape Town, Rondebosch, Cape Town 7700, Republic of South Africa

Abstract. 47 Species of radiolaria have been identified from 30 surface sediment samples collected along transects across the continental margin of northern Namibia between the Kunene River and Walvis Bay. From the distribution patterns of the 24 most abundant species, it was possible to identify a warm water, high salinity population and a cold water, low salinity population. The distribution patterns of each population shows a close correspondence with the known positions of the Angola Current (warm, high salinity water) and the Benguela Current (cold, low salinity water) respectively. Two other trends are apparent from the overall radiolaria distribution; dilution of the nearshore samples by terrigeneous input and a strong preference for open ocean conditions. There is no apparent correlation with upwelling.

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