000 02308cam  2200325za 4500
0019.820030
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008161103s2016    oncabd  ob   f000 0 eng d
020 |a978-0-6-600-5732-3
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn-yk
0861 |aM44-2016/3E-PDF
24500|aFirst results on velocity analyses of multichannel seismic data acquired with the icebreaker RV Araon across the southern Beaufort Sea, offshore Yukon |h[electronic resource] / |cM. Riedel ... [et al.].
260 |a[Ottawa] : |bNatural Resources Canada, |c2016.
300 |a24 p. : |bcol. charts, col. ill., col. maps.
4901 |aCurrent research, |x1701-4387 ; |v2016-3
504 |aIncludes bibliographical references.
520 |a"1,220 line km of multichannel seismic data were acquired in the Canadian Beaufort Sea during a 2014 research cruise in collaboration with the Korea Polar Research Institute. Seismic lines were acquired to map the shallow sedimentary structures. Seismic velocity analyses suggest a consistent regional velocity-depth trend on the slope, east of the Mackenzie Trough, with deviations noted at an upper erosional unconformity associated with mega-scale glacial lineations and at the base of the Shallow Bay Formation. Data acquired in the Mackenzie Trough region suggest a different velocity-depth trend, with the region being marked by a large erosional unconformity. Velocity analyses suggest a removal of up to 600 m of overburden. In deeper water, a bottom-simulating reflector is characterized by the presence of free gas and a low velocity zone. The data allowed analyses of fluid expulsion features and determine that the source of mud extruded on the seafloor was from depths of up to 3 km"--Provided by publisher.
546 |aIncludes abstract in French.
69207|2gccst|aOcean floor
69207|2gccst|aGeophysics
69207|2gccst|aSeismology
7001 |aRiedel, Michael.
7101 |aCanada. |bNatural Resources Canada.
7102 |aGeological Survey of Canada.
830#0|aCurrent research (Geological Survey of Canada)|x1701-4387 ; |v2016-3.|w(CaOODSP)9.506236
85640|qPDF|s6.82 MB|uhttps://publications.gc.ca/collections/collection_2016/rncan-nrcan/M44-2016-3-eng.pdf