Abstract
Reference cores of sediments from the Angola and Cape basins were subjected to lithological, geochemical, and micropaleontological investigations. Based on nannofossil and diatom assemblages, the examined sediments represented by oxidized miopelagic clays, calcareous (nannofossil-foraminiferal, foraminiferal-nannofossil), calcareous-clayey, and clayey-calcareous mud are estimated to be the Pleistocene-Holocene in age. The Cape Basin section includes surface and buried ferromanganese nodules. There are indications of sedimentary material redeposition by the Antarctic Bottom Water and turbidity currents. The South Polar Front zone changed repeatedly its geographic position and migrated northward from the presentday one. As a whole, the Pleistocene-Holocene sedimentation in the Angola and Cape basins corresponds to the incomplete pelagic (miopelagic) type of oceanic lithogenesis.
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Original Russian Text © V.N. Sval’nov, O.B. Dmitrenko, G.Kh. Kazarina, E.D. Berezhnaya, 2014, published in Litologiya i Poleznye Iskopaemye, 2014, No. 4, pp. 295–305.
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Sval’nov, V.N., Dmitrenko, O.B., Kazarina, G.K. et al. Sedimentation in the Angola and Cape basins during the quaternary. Lithol Miner Resour 49, 281–291 (2014). https://doi.org/10.1134/S0024490214030067
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DOI: https://doi.org/10.1134/S0024490214030067