Results 11 to 20 of about 2,198 (206)

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, 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 Stow, Zeinab Smillie
doaj   +2 more sources

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

open access: goldJournal 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   +2 more sources

The Bottom Current Sediments (Contourites) in the Upper Cretaceus Deep-Water Deposits in the Northeeastern Part of Žumberak (Croatia)

open access: greenGeologia Croatica, 2010
The Upper Cretaceous deep marine deposits in NE parts of Žumberakcontain sediments deposited by bottom currents - muddy, sandy andsandy-gravelly contourites. The complete (negative-positive) sequencesand incomplete (negative-positive) sequences have been
Ervin Mrinjek
doaj   +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   +2 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
doaj   +2 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.
Bruno Mejías, Miguel   +7 more
openaire   +3 more sources

Contourite Anticlines as Exploration Objectives: ABSTRACT

open access: hybridAAPG Bulletin, 1979
Regional seismic profiles off the east coast of the United States gathered by the University of Texas Marine Science Institute and Woods Hole Oceanographic Institute have crossed three types of contourite anticlines. They are symmetric, asymmetric, and half-anticlinal forms and have up to 3,000 ft (1,000 m) of relief.
Donald P. McGookey
openalex   +2 more sources

Organic-rich, fine-grained contourites in an epicontinental basin: The Upper Jurassic-Lower Cretaceous Vaca Muerta Formation, Argentina

open access: greenMarine and Petroleum Geology, 2022
Maximiliano Paz   +7 more
openalex   +3 more sources

Lateral variability of ichnological content in muddy contourites: Weak bottom currents affecting organisms' behavior. [PDF]

open access: yesSci Rep, 2019
Although bioturbation is commonly recognized in contourites, only a few studies have analyzed the ichnological content of these deposits in detail. These studies have mainly focused on meso-scale bigradational sequence (a coarsening upward followed by a ...
Dorador J   +3 more
europepmc   +2 more sources

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