Results 1 to 10 of about 1,783 (154)

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

Scientific 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, Dmitry I. Frey, Elena V. Ivanova, Nikolay N. Dmitrevskiy, Oleg V. Levchenko, Vladimir V. Fomin, Marco Ligi   +6 more
doaj   +2 more sources

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

Rivista 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, OLMO MIGUEZ-SALAS, JAVIER DORADOR   +2 more
doaj   +1 more source

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

Journal 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, Attilio Sulli, Daniele Casalbore, Francesco Latino Chiocci   +3 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

Journal 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, Oleg Levchenko, Victoria Putans   +2 more
doaj   +1 more source

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

Geochemistry, 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, G. F. Moore, M. B. Underwood, F. J. Hernández‐Molina, M. Yamashita, S. Kodaira, A. Nakanishi   +6 more
doaj   +1 more source

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

Frontiers 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, Laura De Santis, Jong Kuk Hong, Ester Colizza, Sunghan Kim, Andrea Bergamasco, Sang-Hoon Lee, Seung-Goo Kang, Min Kyung Lee, Hyoungjun Kim, Yeonjin Choi, Andrea Geniram, Hyoung Gyu Choi, Jae Il Lee, Kyu-Cheul Yoo, Yongcheol Park   +15 more
doaj   +1 more source

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

Marine 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, Stow, D. A. V., Hernández-Molina, Francisco Javier, Llave, E., Garcia, M., Diaz del Rio, V., Somoza, L., Brackenridge, R. E.   +7 more
openaire   +2 more sources

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

Geosciences, 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   +1 more source

Natural and anthropogenic influences on the development of mud depocenters in the southwestern Baltic Sea

Oceanologia, 2023
The morphological evolution of two mud depocenters in the southwestern Baltic Sea is investigated by comparison of numerical model results to geological and oceanographic data.
Lucas Porz, Wenyan Zhang, Corinna Schrum
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]

Scientific 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, D. Stow, C. Alvarez-Zarikian, Expedition IODP 339 Scientists   +3 more
doaj   +1 more source