Results 61 to 70 of about 1,802 (172)

Sediment Depositional History and Processes for the Eurasian Basin Since 54 Ma, Arctic Ocean

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 6, June 2025.
Abstract The Eurasian Basin in the Arctic Ocean, comprising the Amundsen and Nansen Basins separated by the Gakkel Ridge, has sediment deposits up to 4–5 km thick. However, its sedimentation history and processes remain poorly understood. Using 31 seismic profiles, we have estimated deposition rates for 54 Ma.
Pingchuan Tan, Chunyang Wang, Fei Wang, Jiabiao Li   +3 more
wiley   +1 more source

Geomagnetic Excursions Recorded in North Atlantic IODP Expedition 395C Sites U1555 and U1563

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 6, June 2025.
Abstract By studying deep‐sea drilled records from the North Atlantic Ocean, several magnetic instabilities of short duration, such as the Iceland Basin (188 ka), the Björn (1,255 ka) and the Gardar (1,460 ka) excursions, were discovered. These records have contributed to our understanding of Earth's magnetic field and are the foundation of the ...
Anita Di Chiara, Sara Satolli, Sarah A. Friedman, Deepa Dwyer, Gary D. Acton, Tom Dunkley Jones, Boris Theofanis Karatsolis, Paul N. Pearson, Takuma Suzuki, Sevasti Modestou, Suzanne O'Connell, Halima Ibrahim, Claire E. Jasper, Danielle E. LeBlanc, Saran Lee‐Takeda, Thena Thulasi, Deborah E. Eason, Matthias Sinnesael, Katharina Hochmuth, Anne Briais, Ross Parnell‐Turner, Leah J. LeVay, Expedition 395C/395 Science Party   +22 more
wiley   +1 more source

Glacial-interglacial sedimentation control on gas seepage exemplified by Vestnesa Ridge off NW Svalbard margin

Frontiers in Earth Science
Vestnesa Ridge is built-up of thick contourites mainly deposited during the last ∼5 million years. Methane leaks from deep gas reservoirs creating pockmarks on its crest, and which have been the focus of numerous studies.
Tine L. Rasmussen, Tove Nielsen
doaj   +1 more source

Thousands of cold-water coral mounds along the Moroccan Atlantic continental margin : distribution and morphometry [PDF]

, 2019
Coral mounds formed by framework-forming cold-water corals pierce the seabed along most continental margins of the Atlantic Ocean and new sites are continuously being discovered.
Bender, Maren, Gaide, Stefanie, Hebbeln, Dierk, Titschack, Jürgen, Van Rooij, David, Vandorpe, Thomas, Wienberg, Claudia, Wintersteller, Paul   +7 more
core   +1 more source

Approaching the Miocene Climatic Optimum in Patagonia (Southern Argentina): Temperature Seasonality and a Potential Role for the Opening Drake Passage

Paleoceanography and Paleoclimatology, Volume 40, Issue 6, June 2025.
Abstract The Miocene Epoch (23.03–5.33 Ma) is receiving increased attention because estimated pCO2 and its associated warmth is comparable to projections over the next century. Well‐constrained sea‐surface temperatures in the tropics and northern latitudes express amplified warming during the Miocene Climatic Optimum (MCO; 16.9–14.7 Ma), yet data from ...
Linda C. Ivany, Claudia J. del Río, Maximiliano J. Alvarez, R. Paul Acosta, Kyger C. Lohmann, M. Sol Raigemborn   +5 more
wiley   +1 more source

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

Early Jurassic extrinsic solar system dynamics versus intrinsic Earth processes: Toarcian sedimentation and benthic life in deep-sea contourite drift facies, Cardigan Bay Basin, UK

Progress in Earth and Planetary Science
The Cardigan Bay Basin (UK) may have functioned as a deep and narrow strait, and thereby influenced Early Jurassic oceanic circulation through the northern and southern Laurasian Seaway, and between Boreal and Peri-Tethys domains.
Grzegorz Pieńkowski, Alfred Uchman, Krzysztof Ninard, Kevin N. Page, Stephen P. Hesselbo   +4 more
doaj   +1 more source

Lithostratigraphy of the Neogene succession of the Danish North Sea

GEUS Bulletin
The Neogene of the Danish North Sea is more than 1200 m thick. Despite being penetrated by numerous wells, formal lithostratigraphic subdivision of this succession has previously been restricted to the lowermost part.
Erik Skovbjerg Rasmussen, Karen Dybkjær, Jørgen Christian Toft, Ole Bjørslev Nielsen, Emma Sheldon, Finn Mørk   +5 more
doaj   +1 more source

First Observations of Benthos and Seston from a Submersible in the Lower St. Lawrence Estuary [PDF]

, 1983
Six dives with the submersible PISCES IV have permitted a unique description of the benthic and pelagic environments of a large, deep Canadian estuary. The estuarine floor and continental slopes are divided into five depth-dependent benthic zones.
Asprey, K. W., Ouellet, G., Silverberg, N., Syvitski, James P.M.   +3 more
core   +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