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| 02466nam 2200325za 4500 |
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| 001 | 9.836444 |
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| 003 | CaOODSP |
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| 005 | 20230131161137 |
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| 007 | cr ||||||||||| |
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| 008 | 170509s2017 oncabd ob f000 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 043 | |an-cn---|an-cn-nt |
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| 086 | 1 |aM183-2/8198E-PDF |
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| 245 | 02|aA belt of seabed erosion along the Beaufort Sea margin, offshore Northwest Territories, governed by Holocene evolution of the Beaufort Shelf-Break Jet |h[electronic resource] : |bgeological evidence, current measurements, and initial oceanographic modelling / |cE.L. King ... [et al.]. |
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| 260 | |a[Ottawa] : |bNatural Resources Canada, |c2017. |
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| 300 | |a1 p. : |bcharts (mostly col.), col. ill., col. maps |
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| 490 | 1 |aGeological Survey of Canada, open file ; |v8198 |
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| 500 | |aCaption title. |
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| 504 | |aIncludes bibliographical references. |
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| 520 | |a"Removal of several metres thickness of stratified muds is recognized from penetration echosounder data along a narrow belt, 1-8km wide along the Beaufort Sea shelf break (100-200m water depth). A corresponding zone of non-deposition (bypass) is bound by blankets of mud thickening away from the erosion/non-deposition belt. Long-term oceanographic moorings have previously demonstrated periodic currents capable of mud re-suspension near the shelf break. Seabed instrumented measurement of the current and its effects on the mud behavior are pending. Radiocarbon dating indicates the erosion began about 6000 years ago. A combination of geologic, oceanographic current data and 3-D oceanographic modelling approaches converge to indicate a strong birth/acceleration of the current at that time, presently recognized as the Beaufort Shelf-break Jet (BSJ). The study also helps constrain sediment structural disturbance rates from seabed fluid/gas seeps in the area”--Summary provided by publisher. |
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| 692 | 07|2gccst|aOcean floor |
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| 692 | 07|2gccst|aErosion |
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| 692 | 07|2gccst|aGeomorphology |
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| 692 | 07|2gccst|aOceanography |
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| 692 | 07|2gccst|aSurficial geology |
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| 700 | 1 |aKing, Edward L. |q(Edward Louis), |d1920- |econtributor. |
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| 710 | 1 |aCanada. |bNatural Resources Canada, |eissuing body. |
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| 710 | 2 |aGeological Survey of Canada, |eissuing body. |
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| 830 | #0|aOpen file (Geological Survey of Canada)|v8198|w(CaOODSP)9.506878 |
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| 856 | 40|qPDF|s56.77 MB|uhttps://publications.gc.ca/collections/collection_2017/rncan-nrcan/M183-2/M183-2-8198-eng.pdf |
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