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Thiede, Jörn; Ehrmann, Werner (2014): Compilation of sedimentation rates and smear slide analysis of DSDP sites. PANGAEA,, Supplement to: Thiede, J; Ehrmann, W (1986): Late Mesozoic and Cenozoic sediment flux to the central North Atlantic Ocean. In: Summerhayes, C P & Shackleton, N J (eds), North Atlantic Palaeoceanography, Geological Society Special Publication, 21, 3-15, hdl:10013/epic.43466.d001

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A history of Mesozoie and Cenozoic palaeoenvironments of the North Atlantie Oeean has been developed based on a detailed analysis of the temporal and spatial distribution of major pelagie sediment facies, of hiatuses. of bulk sediment accumulation rates, and of concentrations and fluxes of the main deep-sea sediment components. The depositional history of the North Atlantic can be subdivided into three major phase: (a) Late Jurassie and Early Cretaceous phase: clastic terrigenous and biogenic pelagic sediment components accumulated rapidly under highly productive surface water masses over the entire occan basin; (b) Late Cretaceous to Early Miocene phase: relatively little terrigenous and pelagic biogenic sediment reached the North Atlantic Ocean floor, intensive hiatus formation occurred at variable rates, and wide stretches of the deep-ocean floor were covered by slowly accumulating terrigenous muds: (c) Middle Miocene to Recent phase: accumulation rates of biogenic and terrigenous deep-sea sediment components increased dramatically up to Quaternary times, rates of hiatus formation and the intensity of deep-water circulation inferred from them seem to have decreased. However, accumulation rate patterns of calcareous pelagic sediment components suggest that large scale reworking and di splacement of deep-sea sediments occurred at a variable rate over wide areas of the North Atlantic during this period.
Related to:
Ehrmann, Werner; Thiede, Jörn (1985): History of Mesozoic and Cenozoic sediment fluxes to the North Atlantic Ocean. Contributions to Sedimentology, E. Schweitzerbart'sche Verlagsbuchhandlung (Nägele u. Obermiller), Stuttgart, 15, 109 pp,
Ehrmann, Werner; Thiede, Jörn (1986): Sedimentzusammensetzung, Sedimentations- und Akkumulationsraten im Nordatlantik; Bohrergebnisse des Deep-Sea Drilling Project (Datensammlung). Berichte-Reports, Geologisch-Paläontologisches Institut der Universität Kiel, 16, 201 pp,
Median Latitude: 39.627897 * Median Longitude: -33.512249 * South-bound Latitude: 3.369200 * West-bound Longitude: -77.311300 * North-bound Latitude: 76.149700 * East-bound Longitude: 7.875300
Date/Time Start: 1968-08-29T00:00:00 * Date/Time End: 1977-04-14T00:00:00
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