Results 1 to 10 of about 1,847 (188)

Unveiling the contourite depositional system in the Vema Fracture Zone (Central Atlantic) [PDF]

open access: yesScientific Reports, 2023
A combination of a high sediment input and intense bottom currents often leads to the formation of contourites (sediments deposited or significantly reworked by bottom currents). Both of these components are present in the Vema Fracture Zone valley which
Dmitrii G. Borisov   +6 more
doaj   +2 more sources

Distinguishing between Deep-Water Sediment Facies: Turbidites, Contourites and Hemipelagites

open access: yesGeosciences (Switzerland), 2020
The distinction between turbidites, contourites and hemipelagites in modern and ancient deep-water systems has long been a matter of controversy. This is partly because the processes themselves show a degree of overlap as part of a continuum, so that the
Dorrik A V Stow, Zeinab Smillie
exaly   +3 more sources

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.
Estefanía Llave   +2 more
exaly   +4 more sources

Contourites: Physical oceanography, process sedimentology, and petroleum geology

open access: yesPetroleum Exploration and Development, 2017
The purpose of this critical review is to address fundamental principles associated with contourites and other bottom-current deposits. The four basic types of deep-marine bottom currents are: (1) thermohaline-induced geostrophic contour currents, (2 ...
G SHANMUGAM
exaly   +3 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

Heterogeneous Sediment Input at the Nankai Trough Subduction Zone: Implications for Shallow Slow Earthquake Localization

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Subducted sediment plays a key role in modulating pore pressure and seismic behavior at subduction zones. We investigated the seismic character of incoming sediments to test how sediment and basement variations relate to the along‐strike changes within ...
H. Tilley   +6 more
doaj   +1 more source

Contourite and Turbidite Features in the Middle Caspian Sea and Their Connection to Geohazards Derived from High-Resolution Seismic Data

open access: yesJournal of Marine Science and Engineering, 2022
High fluvial input combined with specific topographic and oceanographic settings in the Caspian Sea create favorable conditions for contourite deposition. For the first time in its middle portion, contourite deposits have been observed in high-resolution
Vsevolod Yutsis   +2 more
doaj   +1 more source

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

The “Corsica Channel Cold-Water Coral Province” (Mediterranean Sea)

open access: yesFrontiers in Marine Science, 2020
Over 25 mounds have been identified in the Corsica Channel (Mediterranean Sea) through multibeam bathymetric mapping at depth of 400–430 m, with dimensions ranging from 70 to 330 m, achieving maximum heights of 25 m.
Lorenzo Angeletti   +7 more
doaj   +1 more source

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