Results 51 to 60 of about 88 (87)

Large-scale contourite deposits on the Alicante Promontory (SE Iberian slope)

Geogaceta
Large-scale contourite deposits have been identified as a result of the interaction of the Levantine Intermediate Waters (LIW) with the Alicante Highs.
Carmen Juan Valenzuela, Carmina López-Rodríguez, Fernando Fernández Sáez, Elena Guijarro García, Juan Tomás Vázquez Garrido   +4 more
doaj   +1 more source

Beyond the Bulk: Magnetic Property Variations With Sediment Grain Size. Insights Into Process and Provenance

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 1, January 2026.
Abstract Bulk (whole sample) magnetic properties of three‐hundred‐sixty‐two samples from five North Atlantic Ocean sediment cores are compared to the magnetic properties of five grain‐size fractions separated from the same samples. The relative abundance and magnetic properties of the size fractions are highly variable both within a core and among ...
R. G. Hatfield, B. T. Freiberg, J. C. Kowalski, B. H. Wheeler, B. A. Housen, J. S. Stoner   +5 more
wiley   +1 more source

Dynamic Controls on Salt Structures and Translation Velocity at Continental Rifted Margins

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract Salt tectonics at rifted margins involves intricate interactions between weak, viscous evaporite layers and brittle sedimentary rocks. Geophysical data and geological interpretation offer valuable insights into evaporite structure formation and the average translation rate of evaporite and sediment layers on time scales of several million ...
Zhichen Wang, Sascha Brune, Derek Neuharth, Anne C. Glerum, Delphine Rouby, Naiara Fernandez, Xuesong Ding   +6 more
wiley   +1 more source

Cyclic Pockmark Formation Linked to Plio‐Pleistocene Sea‐Level Rise on the Chatham Rise, New Zealand

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Pockmarks are geomorphological depressions on the seafloor in various underwater environmental settings. They are commonly linked to fluid release from subsurface reservoirs; however, the processes involved, fluid types, and relative timing of their formation often remain enigmatic.
Fynn Warnke, Ingo A. Pecher, Lorna J. Strachan, Jess I. T. Hillman, Brandon Dugan   +4 more
wiley   +1 more source

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

Ichnological discrimination of hemipelagic‐dominated slope versus basin‐floor mudstones: Insights from early Viséan successions of a distally steepened ramp, northern Iran

The Depositional Record, Volume 11, Issue 5, Page 1563-1595, November 2025.
This study integrates sedimentological and ichnological data to reveal the depositional processes and environmental conditions of deep‐water muddy gravity flows in the Mobarak Formation. It highlights distinct ichnocoenoses and bioturbation patterns, offering insights into basin‐floor versus slope mudstones and their implications for hydrocarbon ...
Aram Bayet‐Goll, Mahmoud Sharafi, Mehdi Daraei   +2 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

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

3‐D Seismic Investigation of a Gas Hydrate and Fluid Flow System on an Active Mid‐Ocean Ridge; Svyatogor Ridge, Fram Strait

Geochemistry, Geophysics, Geosystems, 2018
Tectonic settings play a large role in the development of fluid flow pathways for gas migrating through sedimentary strata. Gas hydrate systems worldwide are located on either the slopes of passive continental margins, often in large contourite deposits,
Kate A. Waghorn, Stefan Bünz, Andreia Plaza‐Faverola, Joel E. Johnson   +3 more
doaj   +1 more source

South China Sea records Late Miocene reorganization of western Pacific deep circulation

Nature Communications
Oceanic gateways play a crucial role in controlling global ocean circulation. However, gateway effects on low-latitude deep-water circulation are poorly understood.
Shan Liu, Hui Chen, Ming Su, Kunwen Luo, Jiawang Wu, Ya Gao, Zheng Meng, Sara Rodrigues, Debora Duarte, Zhi Lin Ng, Zhen Sun, Haiteng Zhuo, Xinong Xie   +12 more
doaj   +1 more source