First results on velocity analyses of multichannel seismic data acquired with the icebreaker RV Araon across the southern Beaufort Sea, offshore Yukon / M. Riedel ... [et al.]. : M44-2016/3E-PDF

"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.

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Renseignements sur la publication
Ministère/Organisme Canada. Natural Resources Canada.
Geological Survey of Canada.
Titre First results on velocity analyses of multichannel seismic data acquired with the icebreaker RV Araon across the southern Beaufort Sea, offshore Yukon / M. Riedel ... [et al.].
Titre de la série Current research, 1701-4387 ; 2016-3
Type de publication Série - Voir l'enregistrement principal
Langue [Anglais]
Format Électronique
Document électronique
Note(s) Includes bibliographical references.
Includes abstract in French.
Information sur la publication [Ottawa] : Natural Resources Canada, 2016.
Auteur / Contributeur Riedel, Michael.
Description 24 p. : col. charts, col. ill., col. maps.
ISBN 978-0-6-600-5732-3
Numéro de catalogue
  • M44-2016/3E-PDF
Numéro de catalogue du ministère 298840
Descripteurs Ocean floor
Geophysics
Seismology
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