Results 1 to 10 of about 2,677 (188)

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

Lateral migration of large sedimentary bodies in a deep-marine system offshore of Argentina [PDF]

Scientific Reports, 2021
Contourite features are increasingly identified in seismic data, but the mechanisms controlling their evolution remain poorly understood. Using 2D multichannel reflection seismic and well data, this study describes large Oligocene- to middle Miocene-aged
Adam Kirby, Francisco Javier Hernández-Molina, Sara Rodrigues   +2 more
doaj   +2 more sources

The Late Miocene Rifian corridor as a natural laboratory to explore a case of ichnofacies distribution in ancient gateways [PDF]

Scientific Reports, 2021
Oceanic gateways have modulated ocean circulation and have influenced climatic variations throughout the Earth´s history. During the late Miocene (7.8–7.35 Ma), the Atlantic Ocean and the Mediterranean Sea were connected through the Rifian Corridor ...
Olmo Miguez-Salas, Francisco J. Rodríguez-Tovar, Wouter de Weger   +2 more
doaj   +2 more sources

Evolution and morphology of a contourite depositional system based on new evidence from 3D-seismic data offshore Madagascar (Paleogene, Morondava Basin) [PDF]

Scientific Reports, 2022
Numerous bottom current-controlled depositional and erosional features, which together form Contourite Depositional Systems (CDS), have been recognized in deep-water settings over the past decade.
F. Javier Hernández-Molina, Gabor Tari, Nicola Scarselli, Hoby Raharisolofo, Sophie F. Rahajarivelo, Adam Kirby, Wouter de Weger, Estefania Llave, Adrien Mergnat   +8 more
doaj   +2 more sources

Isolation of the South China Sea from the North Pacific Subtropical Gyre since the latest Miocene due to formation of the Luzon Strait [PDF]

Scientific Reports, 2021
The North Pacific subtropical gyre (NPSG) plays a major role in present global ocean circulation. At times, the gyre has coursed through the South China Sea, but its role in the evolutionary development of that Sea remains uncertain.
Shaoru Yin, F. Javier Hernández-Molina, Lin Lin, Jiangxin Chen, Weifeng Ding, Jiabiao Li   +5 more
doaj   +2 more sources

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

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   +2 more sources

Onset of strong Iceland-Scotland overflow water 3.6 million years ago [PDF]

Nature Communications
North Atlantic Deep Water (NADW), the return flow component of the Atlantic Meridional Overturning Circulation (AMOC), is a major inter-hemispheric ocean water mass with strong climate effects but the evolution of its source components on million-year ...
Matthias Sinnesael, Boris-Theofanis Karatsolis, Paul N. Pearson, Anne Briais, Sidney R. Hemming, Leah J. LeVay, Tom Dunkley Jones, Ying Cui, Anita Di Chiara, Justin P. Dodd, Deepa Dwyer, Deborah E. Eason, Sarah A. Friedman, Emma Hanson, Katharina Hochmuth, Halima E. Ibrahim, Claire E. Jasper, Saran Lee-Takeda, Danielle E. LeBlanc, Melody R. Lindsay, David D. McNamara, Sevasti E. Modestou, Margaret A. Morris, Bramley J. Murton, Suzanne OConnell, Gabriel Pasquet, Sheng-Ping Qian, Yair Rosenthal, Sara Satolli, Takuma Suzuki, Thena Thulasi, Bridget S. Wade, Nicholas J. White, Tao Wu, Alexandra Y. Yang, Ross E. Parnell-Turner   +35 more
doaj   +2 more sources

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

Carbonate contourite drifts in the southwest South China Sea: Sedimentary, paleoceanographic and economic implications

Frontiers in Marine Science, 2022
Contourite drifts are significant sedimentary features and provide clues for the reconstruction of paleoceanography and paleoenvironment. Although they have been increasingly identified in the world’s ocean, shallow-water contourite drifts (< 300 m ...
Shan Liu, Shan Liu, Zijun Liang, Boda Zhang, Haixia Su, Zhenyu Lei, Ming Su, Ming Su, Ming Su   +8 more
doaj   +1 more source

Sedimentary processes in the bottom boundary layer of a contourite drift in the northern South China Sea

Frontiers in Marine Science, 2023
Ocean dynamic processes in the bottom boundary layer (BBL) are crucial for sedimentation, such as deposition and resuspension of marine sediments. In this study, we conducted in-situ tripod observations of the sediment ridge of a contourite drift in the ...
Longwei Wu, Yulong Zhao, Zhifei Liu, Pengfei Ma, Yanwei Zhang   +4 more
doaj   +1 more source