Results 11 to 20 of about 3,841 (247)

Secondary flow in contour currents controls the formation of moat-drift contourite systems

open access: yesCommunications Earth & Environment, 2023
Ocean currents control seafloor morphology and the transport of sediments, organic carbon, nutrients, and pollutants in deep-water environments. A better connection between sedimentary deposits formed by bottom currents (contourites) and hydrodynamics is
Henriette Wilckens   +5 more
doaj   +2 more sources

Hybrid turbidite–contourite systems in the modern Tarakan Basin: seismic sedimentology and analogue for subsurface storage

open access: yesFrontiers in Earth Science
Hybrid turbidite–contourite systems are present where gravity-driven and bottom-current processes interact. Although recent studies have advanced our understanding, deciphering the relative roles of downslope and alongslope processes in shaping the deep ...
Harya Dwi Nugraha   +2 more
doaj   +2 more sources

Contourite characterization and its discrimination from other deep‐water deposits in the Gulf of Cadiz contourite depositional system [PDF]

open access: yesSedimentology, 2020
AbstractDespite numerous efforts to properly differentiate between contourites and other deep‐water deposits in cores and outcrops, reliable diagnostic criteria are still lacking. The co‐occurrence of downslope and along‐slope sedimentary processes makes it particularly difficult to differentiate these relatively homogeneous deposits.
Sandra de Castro   +7 more
openaire   +6 more sources

Early Jurassic extrinsic solar system dynamics versus intrinsic Earth processes: Toarcian sedimentation and benthic life in deep-sea contourite drift facies, Cardigan Bay Basin, UK

open access: yesProgress in Earth and Planetary Science
The Cardigan Bay Basin (UK) may have functioned as a deep and narrow strait, and thereby influenced Early Jurassic oceanic circulation through the northern and southern Laurasian Seaway, and between Boreal and Peri-Tethys domains.
Grzegorz Pieńkowski   +4 more
doaj   +2 more sources

Hunting paleoceanographic archives of ice sheet-ocean interaction in the northwestern Ross Sea, Antarctica

open access: yesFrontiers in Earth Science, 2023
The analysis of sedimentary deposits influenced by bottom currents in glaciated continental margins provides crucial insights into paleo-depositional and oceanographic conditions.
Sookwan Kim   +15 more
doaj   +1 more source

IODP Expedition 339 in the Gulf of Cadiz and off West Iberia: decoding the environmental significance of the Mediterranean outflow water and its global influence [PDF]

open access: yesScientific Drilling, 2013
IODP Expedition 339 drilled five sites in the Gulf of Cadiz and two off the west Iberian margin (November 2011 to January 2012), and recovered 5.5 km of sediment cores with an average recovery of 86.4%.
F. J. Hernández-Molina   +3 more
doaj   +1 more source

Bottom Current Modification of Turbidite Lobe Complexes

open access: yesFrontiers in Earth Science, 2022
Submarine lobes form at the distal end of sediment gravity flow systems and are globally important sinks for sediment, anthropogenic pollutants and organic carbon, as well as forming hydrocarbon and CO2 reservoirs.
A. Fuhrmann   +4 more
doaj   +1 more source

Neodymium Isotopes in Glauconite for Palaeoceanographic Reconstructions at Continental Margins: A Preliminary Investigation From Demerara Rise

open access: yesFrontiers in Earth Science, 2021
Contourite sediment accumulations at continental margins are related to strong bottom water circulation, where intense winnowing can result in neoformation of authigenic grains of glauconite at the seafloor.
Pierre Giresse   +3 more
doaj   +1 more source

Glacial-interglacial changes in oceanic conditions and depositional process in the continental rise in response to ice sheet (shelf) variation in Bellingshausen Sea, Antarctica

open access: yesFrontiers in Marine Science, 2023
Antarctic continental margin sediments are eroded from the shelf and transported to the slope/rise in association with changing ice sheet configuration.
Sunghan Kim   +9 more
doaj   +1 more source

Factors controlling the morphology and internal sediment architecture of moats and their associated contourite drifts

open access: yesSedimentology, 2023
The interaction of sedimentary systems with oceanographic processes in deep‐water environments is not well understood yet, despite its importance for palaeoenvironmental reconstructions, and for a full understanding of source‐to‐sink sediment transport ...
Henriette Wilckens   +10 more
semanticscholar   +1 more source

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