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TitreOcean bottom seismometer survey
TéléchargerTéléchargement (publication entière)
AuteurRiedel, M; Standen, G
SourceOverview of field operations during a 2013 research expedition to the southern Beaufort Sea on the RV Araon; par Jin, Y K; Riedel, M; Hong, J K; Nam, S I; Jung, J Y; Ha, S Y; Lee, J Y; Kim, G Y; Yoo, J; Kim, H S; Kim, G; Conway, K; Standen, G; Ulmi, M; Schreker, M; Commission géologique du Canada, Dossier public 7754, 2015 p. 49-58, https://doi.org/10.4095/295966
Année2015
ÉditeurRessources naturelles Canada
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/295966
Medianumérique; en ligne
Référence reliéeCette publication est contenue dans Jin, Y K; Riedel, M; Hong, J K; Nam, S I; Jung, J Y; Ha, S Y; Lee, J Y; Kim, G Y; Yoo, J; Kim, H S; Kim, G; Conway, K; Standen, G; Ulmi, M; Schreker, M; (2015). Overview of field operations during a 2013 research expedition to the southern Beaufort Sea on the RV Araon, Commission géologique du Canada, Dossier public 7754
Formatspdf
ProvinceRégion extracotière du nord
Lat/Long OENS-141.0000 -133.0000 70.2500 68.0000
Sujetslevés géophysiques; sismographes; réseau sismique; séismologie; ondes sismiques; gaz; levés acoustiques; levés acoustiques marins; hydrate; pergélisol; congélation du sol; glace fossile; bathymétrie; plate-forme continentale; talus continental; dépôts de pentes; géophysique; combustibles fossiles
Illustrationstables; photographs; screen captures; location maps; plots
Consultation
Endroit
 
Bibliothèque de Ressources naturelles Canada - Ottawa (Sciences de la Terre)
 
ProgrammeRisques géo marines, Géoscience pour la sécurité publique
Diffusé2015 02 17
Résumé(Sommaire disponible en anglais seulement)
The combined multichannel seismic and OBS data will allow detailed velocity analyses to investigate the permafrost signature and help mapping zones of high-velocity sediments indicative of the presence of ice along the four main lines crossing the OBS stations in the Transect 1 Area). Initial analysis of individual shot gathers show clear refraction arrivals with velocities around 2000 m/s (see Chapter 3 for more details) in areas of expected permafrost occurrence, and shot gathers lacked such arrivals in zones where the permafrost was predicted to be absent. It is therefore expected that the OBS data, once post-processed will also show clear refracted arrivals for velocity analyses.
GEOSCAN ID295966