Results 91 to 100 of about 3,841 (247)

Increasing impact of North Atlantic Ocean circulation on sedimentary processes along the passive Galicia Margin (NW Spain) over the past 40 million years

Frontiers in Earth Science
Off the Northwestern Iberian Peninsula, the vigorous bottom-current regime interacts with a complex seafloor topography inside the Galicia Interior Basin (GIB), which was tectonically shaped during the opening of the North Atlantic Ocean basin in ...
Julia Haberkern, Julia Haberkern, Julia Haberkern, Till J. J. Hanebuth, Till J. J. Hanebuth, Volkhard Spiess, Volkhard Spiess, Tilmann Schwenk, Tilmann Schwenk   +8 more
doaj   +1 more source

Analysis of Different Methodologies to Calculate Bouguer Gravity Anomalies in the Argentine Continental Margin [PDF]

, 2014
We have tested and used two methods to determine the Bouguer gravity anomaly in the area of the Argentine continental margin. The first method employs the relationship between the topography and gravity anomaly in the Fourier transform domain using ...
Ghidella, Marta E., Pedraza de Marchi, Ana Carolina, Tocho, Claudia   +2 more
core   +2 more sources

A Model Based Study of the Emergence of North Atlantic Deep Water During the Cenozoic: A Tale of Geological and Climatic Forcings

Paleoceanography and Paleoclimatology, Volume 40, Issue 5, May 2025.
Abstract The North Atlantic Deep Water (NADW) is a key component of modern climate systems, redistributing heat from equatorial to polar regions and contributing to the Atlantic Meridional Overturning Circulation. However, the timing of its emergence and the mechanisms driving its formation remain uncertain.
Erwan Pineau, Yannick Donnadieu, Pierre Maffre, Camille Lique, Thierry Huck, Anthony Gramoullé, Jean‐Baptiste Ladant   +6 more
wiley   +1 more source

133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction

Geosciences, 2019
The Djibouti Ville Drift is part of a contourite depositional system located on the southern side of the Djibouti Ville Seamount in the Alboran Sea (Western Mediterranean).
Nieves López-González, Belén Alonso, Carmen Juan, Gemma Ercilla, Graziella Bozzano, Isabel Cacho, David Casas, Desirée Palomino, Juan-Tomás Vázquez, Ferran Estrada, Patricia Bárcenas, Elia d’Acremont, Christian Gorini, Bouchta El Moumni   +13 more
doaj   +1 more source

Internal features, mineralogy and geochemistry of ferromanganese nodules from the Gulf of Cadiz: the role of the Mediterranean Outflow Water undercurrent [PDF]

, 2010
A large suite of Fe–Mn nodules (561 samples) were recovered during the Anastasya 2001 cruise (TASYO project) along the continental margin of the Gulf of Cadiz (Eastern Central Atlantic), at the confluence of the Mediterranean Sea with the Atlantic ...
Torres Pérez-Hidalgo, Trinidad José
core   +1 more source

Detection and correction of inclination shallowing in deep sea sediments using the anisotropy of anhysteretic remanence [PDF]

, 1993
Paleomagnetic data from recent Pleistocene to recent deep sea sediments from the continental rise of eastern North America exhibit a cyclical inclination shallowing, up to 30° with respect to the geocentric axial dipole value. This shallowing is strongly
Collombat, Helene, Kent, Dennis V., Rochette, Pierre   +2 more
core   +2 more sources

Contourite vs Turbidite Outcrop and Seismic Architectures

Angolan Mineral, Oil & Gas Journal, 2020
The hydrocarbon exploration of oceanic depositional systems demands a better understanding of the role of bottom currents and their implications for petroleum systems such as reservoir and sealing rocks. Deep-marine bottom-current reworked sands (sandy contourites) have been recognized in hydrocarbon-bearing sands of the Kwanza Basin.
Cirilo Cauxeiro, Michel Lopez, Javier Hernández-Molina, Artur Miguel, Gizela Cauxeiro, Vanessa Caetano   +5 more
openaire   +1 more source

Late Miocene contourite channel system reveals intermittent overflow behavior

Geology, 2020
Paleoceanographic information from submarine overflows in the vicinity of oceanic gateways is of major importance for resolving the role of ocean circulation in modulating Earth’s climate.
W. Weger, F. Hernández‐Molina, R. Flecker, F. Sierro, D. Chiarella, W. Krijgsman, M. A. Manar   +6 more
semanticscholar   +1 more source

New Kinematic Model of the Early Opening of the Equatorial Atlantic Realm

Tectonics, Volume 44, Issue 5, May 2025.
Abstract The opening of the Equatorial Atlantic Ocean constitutes the final stage of Gondwana's breakup, leading to the separation of the African and South American continents. The early spreading has been debated due to the absence of magnetic anomalies related to the Early Cretaceous opening at low latitude, and an incomplete fracture zone record ...
Thomas Lesourd—Laux, Christophe Basile, Walter Roest, Frauke Klingelhoefer, Sabin Zahirovic, Nicky M. Wright, David Graindorge, Martin Patriat, Lies Loncke, François Sapin   +9 more
wiley   +1 more source

Geochemical Signatures of Paleoclimate Changes in the Sediment Cores from the Gloria and Snorri Drifts (Northwest Atlantic) over the Holocene-Mid Pleistocene

Geosciences, 2019
A multiproxy study of the sediment cores taken from the Snorri Drift, formed under the influence of the Iceland−Scotland bottom contour current, and from the Gloria Drift, located southward Greenland at the boundary of Irminger and Labrador Seas ...
Liudmila L. Demina, Ekaterina A. Novichkova, Alexander P. Lisitzin, Nina V. Kozina   +3 more
doaj   +1 more source