Results 11 to 20 of about 2,705 (206)

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

The Cadiz Contourite Channel: Sandy contourites, bedforms and dynamic current interaction [PDF]

open access: yesMarine Geology, 2013
The Cadiz Contourite Channel is the largest and most prominent contourite channel in the middle slope of the Gulf of Cadiz, and is known to channelise the southern branch of the Lower Core of Mediterranean Outflow Water (MOW) as it flows westwards from the Gibraltar Gateway.
Bruno Mejías, Miguel   +7 more
openaire   +2 more sources

MERCURY INTRUSION POROSIMETRY TO EVALUATE THE INCIDENCE OF BIOTURBATION ON POROSITY OF CONTOURITES

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2021
The effect of bioturbation on rocks’ flow-media properties (e.g., porosity and permeability) and its impact on reservoir quality has been previously documented.
FRANCISCO J. RODRÍGUEZ-TOVAR   +2 more
doaj   +1 more source

First Evidence of Contourite Drifts in the North-Western Sicilian Active Continental Margin (Southern Tyrrhenian Sea)

open access: yesJournal of Marine Science and Engineering, 2021
We present the results of an integrated geomorphological and seismo-stratigraphic study based on high resolution marine data acquired in the north-western Sicilian continental margin. We document for the first time five contourite drifts (marked as EM1a,
Daniele Spatola   +3 more
doaj   +1 more source

Ferromanganese nodules and micro-hardgrounds associated with the Cadiz Contourite Channel (NE Atlantic): Palaeoenvironmental records of fluid venting and bottom currents [PDF]

open access: yes, 2012
Ferromanganese nodule fields and hardgrounds have recently been discovered in the Cadiz Contourite Channel in the Gulf of Cadiz (850–1000 m). This channel is part of a large contourite depositional system generated by the Mediterranean Outflow Water ...
Abouchami   +159 more
core   +2 more sources

An assessment of bottom current controlled sedimentation in Pacific Ocean abyssal environments [PDF]

open access: yes, 2018
The effect of the circulation of polar-sourced dense waters on the deep seafloor is still largely unknown. This paper presents multibeam bathymetric evidence for the existence of present-day contourite drifts on the central Pacific ocean at depths ...
De Bruycker, Wouter   +2 more
core   +2 more sources

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