Compilation of sedimentation rates and smear slide analysis of DSDP sites ...

• Main Authors: Thiede, Jörn, Ehrmann, Werner
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2014
• Subjects: Deep Sea Drilling Project DSDP; Quaternary Environment of the Eurasian North QUEEN; Shackleton; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.832271; https://doi.pangaea.de/10.1594/PANGAEA.832271

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 ... : Supplement to: Thiede, Jörn; Ehrmann, Werner (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 ...