The upper Cainozoic of the Norwegian continental shelf correlated with the deep sea record of the Norwegian Sea and the North Atlantic

Eidvin, Tor; Jansen, Eystein; Rundberg, Yngve; Brekke, Harald; Grogan, Paul

doi:10.1016/s0264-8172(00)00008-8

Cited by 80 publications

(63 citation statements)

References 54 publications

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“…amounts of sediments were deposited in the Naust Formation (up to 40,900 km 3 of sediments in the lower Naust Formation sequence), but there appear to be no signs of grounded ice and only few indications of scouring of grounded ice bergs. The main depocenters were offshore from the uplifted mainland areas in southern Norway, Northern Nordland-Lofoten, and along the western Barents Shelf margin (Riis, 1996;Eidvin et al, 2000;Ottesen et al, 2005;Rise et al, 2005). From approximately 1.5-0.5 Ma glaciers seem to have entered the shelf locally in restricted periods.…”

Section: Late Pliocene-pleistocene Tilting Borderland Uplift and Expmentioning

confidence: 99%

“…During this time the shelf edge off mid-Norway migrated 100-150 km westwards, while the narrow Møre shelf was built out in the order of 30-50 km . The first glacial advances to the Norwegian coast started at about 2.8-2.7 Ma as recognised by the abrupt increase in the amount of ice-rafted debris (IRD) in deep-sea sediments on the Iceland and Vøring Plateaus (Fronval and Jansen, 1996;Eidvin et al, 2000). Until approximately 1.5 Ma the glaciers were restricted to the mainland and did not pass on to the shelf (Bugge et al, 2004).…”

Section: Late Pliocene-pleistocene Tilting Borderland Uplift and Expmentioning

confidence: 99%

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Towards a 4D topographic view of the Norwegian sea margin

Smelror

Dehls

Ebbing

et al. 2007

Global and Planetary Change

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Section: Late Pliocene-pleistocene Tilting Borderland Uplift and Expmentioning

confidence: 99%

Section: Late Pliocene-pleistocene Tilting Borderland Uplift and Expmentioning

confidence: 99%

Towards a 4D topographic view of the Norwegian sea margin

Smelror

Dehls

Ebbing

et al. 2007

Global and Planetary Change

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“…The mound base represents the widespread unconformity of the mid Pleistocene potentially correlating in the northern North Sea, northward North Atlantic and Norwegian-Greenland Sea (e.g. Eidvin and Nagy, 1999;Eidvin et al, 2000).…”

Section: Age Modelmentioning

confidence: 99%

“…Wilson, 1979;Kenyon et al, 1998Kenyon et al, , 2003Rogers, 1999), and large clusters of the mounds have been discovered on the European continental margins (e.g. Freiwald, 1998Freiwald, , 2002Bett, 2001;Wheeler et al, 2007;Roberts et al, 2009), including the Norwegian shelf (Eidvin et al, 2000;Wehrmann et al, 2009), Rockall Trough (Kenyon et al, 2003;Masson et al, 2003;de Haas et al, 2009) andPorcupine Seabight (De Mol, 2002;Huvenne et al, 2003Huvenne et al, , 2005Wheeler et al, 2005). Their sedimentological fabrics, faunal diversity, ecological importance, and temporal and spatial distributions have provided attractive subjects for palaeoceanographic sedimentologists and palaeontologists.…”

Section: Introductionmentioning

confidence: 99%

Pleistocene geochemical stratigraphy of the borehole 1317E (IODP Expedition 307) in Porcupine Seabight, SW of Ireland: applications to palaeoceanography and palaeoclimate of the coral mound development

Takashima

Kano

et al. 2011

J Quaternary Science

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Stable isotopes and element compositions of the fine-grained matrix were measured for IODP Expedition 307 Hole U1317E drilled from the summit of Challenger Mound in Porcupine Seabight, northeast Atlantic, to explore the palaeoceanographic and palaeoclimatic background to development of the deep-water coral mound. The 155 m long mound section was divided into two units by an unconformity at 23.6 mbsf: Unit M1 (2.6-1.7 Ma) and Unit M2 (1.0-0.5 Ma). Results from 519 specimens show a difference in d 13 C value between Unit M1 (À0.6% to À5.0%) and Unit M2 (À1.0% to 1.0%), but such a distinct difference was not seen in d 18 O values (1.0%-2.5%), CaCO 3 content (40-60 wt%), Sr/Ca ratio (2.0-8.0 mmol mol À1 ), and Mg/Ca ratio (10.0-20.0 mmol mol À1 ) through the mound. Positive d 18 O and negative d 13 C shifts at the mound base are consistent with the oceanographic changes in the northeast Atlantic at the beginning of the Quaternary. The positive d 13 C regression in Unit M2 suggests a linkage to the mid Pleistocene intensified glaciation in the Northern Hemisphere. Warm Mediterranean Upper Core Water of Mediterranean Outflow Water, Eastern North Atlantic Water and cold Labrador Sea Water of North Atlantic Deep Water are key oceanographic features that cause spikes and shifts in stable isotope and element composition. However, the stable isotope values of the sediment matrix could not primarily record the glacial-interglacial eustatic/temperature change, but indirectly indicate current regimes of the intermediate oceanic layer where the coral mound grew. Similarly, elemental ratios and CaCO 3 content may not represent the productivity and temperature of surface sea water, respectively, but superpose the fractions from both surface and bottom water. It is concluded that palaeoceanographic change coupled to the Pleistocene glacial/interglacial cycles is a key control on the geochemical stratigraphy of the matrix sediments of the carbonate mound developed in Porcupine Seabight.

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“…The upper part of the Utsira Sand has been variously dated as Late Miocene (Gregersen, Michelsen, & Sørensen, 1997, fig. 3;Isaksen & Tonstad, 1989), Early Pliocene (Eidvin & Rundberg, 2001;Piasecki, Gregersen, & Johanessen, 2002), or early Late Pliocene (Eidvin, Jansen, Rundberg, Brekke, & Grogan, 2000;Eidvin, Riis, & Rundberg, 1999;Eidvin, Rundberg, & Smelror, 2002). The base of the Nordland Group mudstones has been dated as Late Miocene (Gregersen et al, 1997, fig. 3) or early Late Pliocene (Eidvin et al, 1999).…”

Section: Introductionmentioning

confidence: 99%