Results 91 to 100 of about 140 (130)
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Sediment drifts and contourites on the continental margin off northwest Britain
Sedimentary Geology, 1998Abstract Seismic reflection profiles and short cores from the continental margin off northwest Britain have revealed a variety of sediment-drift styles and contourite deposits preserved in the northeast Rockall Trough and Faeroe-Shetland Channel. The sediment drifts include: (1) distinctly mounded elongate drifts, both single- and multi-crested; (2 ...
M.S. Stoker +3 more
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The Lofoten Contourite Drift: High-Resolution Seismic Stratigraphy
2003A contourite drift, the Lofoten Drift, has been identified from ca. 1,000 m water depth on the continental slope off northern Norway (Laberg et al. 1999) (Fig. 1). The Norwegian Current transporting Atlantic water towards the NE dominates present day surface circulation off northern Norway The strongest measured currents are in excess of 1.1 m/s west ...
J. S. Laberg, T. O. Vorren
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Ordovician carbonate contourite drifts in Hunan and Gansu Provinces, China
Geological Society, London, Memoirs, 2002abstract The Early Ordovician continental margin at the southern edge of the Yangtze Platform, China, is represented by a succession of deep-water carbonate sediments near Jiuxi. A distinctive elongate mound-like form, some 120 km long, 25 km wide and 350-450 m thick, has been identified between shallow-water platform carbonates ...
Luo, S., Gao, Z., He, Y., Stow, D.A.V.
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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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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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Chapter 24 Palaeoceanographic Significance of Contourite Drifts
2008Publisher 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, 2002Abstract 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. +4 more
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Biogeographic patterns of benthic foraminifera in contourite drift systems of the Atlantic Ocean
2021Benthic 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 +4 more
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Contourite drifts, moats and channels in the Upper Cretaceous chalk of the Danish Basin
Sedimentology, 2006AbstractDuring 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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Contourite drift types and their distribution in the North and South Atlantic Ocean basins
Sedimentary Geology, 1993Abstract 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 +2 more
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Seismic analyses of Cenozoic contourite drift development in the Northern Norwegian Sea
Marine Geophysical Researches, 2001Four 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 +4 more
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