NDLI: Grain-Size Trend Analysis for the Determination of Non-Biogenic Sediment Transport Pathways on the Kwinte Bank (southern North Sea), in Relation to Sand Dredging

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Grain-Size Trend Analysis for the Determination of Non-Biogenic Sediment Transport Pathways on the Kwinte Bank (southern North Sea), in Relation to Sand Dredging

Content Provider	Semantic Scholar
Author	Poulos, Ernest Ballay, Arnaud
Copyright Year	2010
Abstract	Grain-size trend analysis is applied to the determination of sediment transport pathways over the Kwinte Bank, southern North Sea; which had been subjected to intensive dredging, within the context of the environmental impact of dredging activities. On the basis of the results of grain-size trend analysis, focused mainly upon the transportation of the non-biogenic sedimentary material (<2 mm), it appears that: (i) there is a main sediment pathway over the western (bank crest) and central (dredged area) part of the bank directed toward the NE; whilst a secondary pathway is established over its eastern gently-sloping fl ank, having a SE direction. Further, the present analysis shows that the area of the central (dredged) depression acts more as a 'by-passing' zone rather than as a depo-centre for the nonbiogenic sediments. Comparison undertaken with the results of an earlier investigation, for a non-dredged area at the northern end of the same bank, reveals that the depression due to dredging modifi es signifi cantly the sediment transport pathways; this may be attributed to a change in the seabed morphology which, in turn, modifi es the nearbed hydrodynamics (related to tide and/or storm events).
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://users.uoa.gr/~stamatakis/thalis/Research_Group_B/Papers/Grain_Size_Trend_Analysis.pdf
Alternate Webpage(s)	http://www.vliz.be/imisdocs/publications/223027.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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