Paleoproductivity
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Recent papers in Paleoproductivity
A B S T R A C T During the early stages of sediment diagenesis most of the organic matter reoxidizes, leaving behind a residual fraction of organic carbon which does not typically reflect its original quantities. Paleo-productivity... more
Reconstruction of palaeoproductivity from Southern Ocean is crucial for understanding the functioning of the Southern Ocean biological pump in the past. High resolution records of multi-proxy parameters (calcium carbonate, opal, total... more
RESUMO A produtividade é um importante parâmetro paleoceanográfico porque permite inferências sobre as condições atmosféricas, de circulação oceânica superficial e sobre o clima no passado. Uma das formas de estudá-la ao longo do... more
Benthic foraminifer accumulation rates (BFAR) and benthic to planktic foraminifer ratios (B/P) have been suggested to represent an index of paleoproductivity in the world oceans. It is shown here, however, that BFAR and B/P do not record... more
New magnetobiostratigraphic data for the Late Oligocene through early Miocene at Deep Sea Drilling Project (DSDP) Hole 516F provide a significantly revised age model, which permits reevaluation of developments that led to the Mi-1 glacial... more
In the southern Indian Ocean, the position of the subtropical front – the boundary between colder, fresher waters to the south and warmer, saltier waters to the north – has a strong influence on the upper ocean hydrodynamics and... more
The history of the Somali upwelling during the last 18.5 ka has been reconstructed using biogenic silica fluxes estimated from a sediment core retrieved from the western Arabian Sea. The reconstructed record demonstrates periodic... more