Results 141 to 150 of about 1,575 (178)

Facies and ichnology of an Upper Cretaceous chalk contourite drift complex, eastern Denmark, and the validity of contourite facies models

Journal of the Geological Society, 2012
The Upper Cretaceous chalk of the Danish Basin has been interpreted as a major contourite complex on the basis of high-resolution seismic data. The sea floor had a pronounced topography with kilometre-wide ridges and valleys up to almost 200 m deep, interpreted to have been formed by contour-parallel bottom currents. Only few ancient contourite systems
Rasmussen, Susanne Lil, Surlyk, Finn
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Biogeographic patterns of benthic foraminifera in contourite drift systems of the Atlantic Ocean

2021
Benthic foraminifera inhabit diverse marine environments, including areas of persistent bottom currents and contourite drift deposition. Certain highly adapted epibenthic foraminifera colonize contourite deposits as opportunistic suspension feeders.
Saupe , Anna , Schmidt , Johanna , Petersen , Jassin , Bahr , André , Grunert , Patrick   +4 more
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Chapter 24 Palaeoceanographic Significance of Contourite Drifts

2008
Publisher Summary This chapter provides an overview of the recent methods and advances across the spectrum of disciplines that are relevant for contourite-based palaeoceanography. The broad range of time scales and earth-system processes that may be addressed by contourite research is highlighted by three general themes: oceanic gateways, past warm ...
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Bottom currents, contourites and deep-sea sediment drifts: current state-of-the-art

Geological Society, London, Memoirs, 2002
Abstract This paper provides both an introduction to and summary for the Atlas of Contourite Systems that has been compiled as part of the International Geological Correlation Project - IGCP 432. Following the seminal works of George Wust on the physical oceanography of bottom currents, and Charley Hollister on contourite sediments, a series ...
Stow, D.A.V., Faugeres, J-C., Howe, J.A., Pudsey, C.J., Viana, A.R.   +4 more
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Seismic analyses of Cenozoic contourite drift development in the Northern Norwegian Sea

Marine Geophysical Researches, 2001
Four drift accumulations have been identified on the continental margin of northern Norway; the Lofoten Drift, the Vesteralen Drift, the Nyk Drift and the Sklinnadjupet Drift. Based on seismic character these drifts were found to belong to two main groups; (1) mounded, elongated, upslope accretion drifts (Lofoten Drift, Vesteralen Drift and Nyk Drift),
Jan Sverre Laberg, Torbjørn Dahlgren, Tore O. Vorren, Haflidi Haflidason, Petter Bryn   +4 more
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Sediment Transport Over the Hatton and Gardar Contourite Drifts

SEPM Journal of Sedimentary Research, 1980
ABSTRACT The contrasted modes of transport and deposition of sandy and muddy contourites were examined by hydrographic, photographic, lithologic, and seismic data from Hatton and Gardar sediment drifts in the Iceland Basin, northeastern Atlantic Ocean. Gardar Drift is made of muddy contourites deposited from Iceland-Scotland Overflow Water with a thick
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Contourite drifts, moats and channels in the Upper Cretaceous chalk of the Danish Basin

Sedimentology, 2006
AbstractDuring the Late Cretaceous, high global sea‐level meant that most of the NW European craton was flooded by the deep epeiric ‘chalk sea’. The classical paradigm for chalk deposition envisages a quiet rain of minute skeletal debris of coccolithophorid algae and other pelagic organisms deposited as horizontal, flat‐lying pelagic oozes with local ...
Surlyk, Finn, Lykke-Andersen, Holger
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Slope stabilityof the Guadiaro-Baños contourite drifts (SW Mediterranean)

2023
X Simposio sobre el Margen Ibérico Atlántico - X Simpósio sobre a Margen Ibérica Atlántica, 7-9 de julio de 2022 ...
Yenes, Mariano, Casas, David, Nespereira, José, López-González, Nieves, Casalbore, Daniele, Monterrubio, Serafín, Alonso, Belén, Ercilla, Gemma, Juan, Carmen, Bárcenas, Patricia, Palomino, Desirée, Mata Campo, Maria Pilar, Vázquez, Juan Tomás, Estrada, Ferran, Azpiroz Zabala, Maria, Teixeira, Manuel   +15 more
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Contourite drift types and their distribution in the North and South Atlantic Ocean basins

Sedimentary Geology, 1993
Abstract Patterns of sediment accumulation under the control of deep bottom currents depend on interacting factors: intensity of the regional deep circulation, morphology of the sea-floor, Coriolis effects, abundance of terrigenous and biogenic supplies, subsequent turbidity of deep nepheloid layers, and depth of the CCD.
Jean Claude Faugères, Marie Laure Mézerais, Dorrik A.V. Stow   +2 more
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Contourite drifts on early passive margins as an indicator of established lithospheric breakup

Earth and Planetary Science Letters, 2014
The Albian–Cenomanian breakup sequence (BS) offshore Northwest Iberia is mapped, described and characterised for the first time in terms of its seismic and depositional facies. The interpreted dataset comprises a large grid of regional (2D) seismic-reflection profiles, complemented by Industry and ODP/DSDP borehole data.
Duarte M. Soares, Tiago M. Alves, Pedro Terrinha   +2 more
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