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TitreFraser Delta slope stability and Georgia Strait seafloor mapping: cruise 2006002PGC aboard the CCGS Vector, May, 2006
TéléchargerTéléchargements
AuteurLintern, D G; Neelands, P J; Picard, K P; Jmieff, D G; Wiser, A P; Christian, H; Murphy, B J
SourceCommission géologique du Canada, Dossier public 5350, 2007, 68 pages; 1 CD-ROM, https://doi.org/10.4095/224031 (Accès ouvert)
LiensMetadata - Métadonnées
Année2007
ÉditeurRessources naturelles Canada
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/224031
MediaCD-ROM; numérique; en ligne
Liensreadme
Formatsaux; bmp; dbf; doc (Microsoft Word); gif; html; jpg; lyr; pdf (Adobe® Reader® v.7.0 is included / est fourni); prj; rtf (Microsoft Word); sbn; shp; tif; tifw; txt; wmv (Microsoft Media Player); wpg (Corel Presentations); xls (Microsoft Excel); xml
ProvinceRégion extracotière de l'ouest; Colombie-Britannique
SNRC92B/10; 92B/11; 92B/12; 92B/13; 92B/14; 92B/15; 92C/09; 92C/16; 92F/01; 92F/08; 92F/09; 92G/02; 92G/03; 92G/04; 92G/05; 92G/06; 92G/07; 92G/10; 92G/11; 92G/12
Lat/Long OENS-124.5000 -122.5000 49.7500 48.8333
Sujetsdeltas; sédiments deltaïques; stabilité des pentes; levés géophysiques; levés sismiques marins; levés au sonar; levés de reflexion sismiques; profils sismiques; carottages par piston; échantillons prélevés au hasard; pénétromètres; essai de matériel; analyses de l'eau; salinité; température de l'eau; géochimie de l'eau de mer; photographie; essais de cisaillement; resistance au cisaillement; analyses stratigraphiques; contrôle de la qualité; géophysique; géologie des dépôts meubles/géomorphologie; géologie de l'ingénieur; Phanérozoïque; Cénozoïque; Quaternaire
Illustrationssketch maps; photographs; tables; profiles; plots; stratigraphic sections; seismic images
ProgrammeLes géosciences à l'appui de la gestion des océans
Diffusé2007 07 01
Résumé(disponible en anglais seulement)
Senior Scientist: Gwyn Lintern - PGC, Natural Resources Canada
Cruise Number: 2006002PGC. April 24 - May 1, 2006. Ship: CCGS Vector
Principal objectives of the cruise were to:
1. Characterize the seabed geotechnical properties of the Fraser River delta slope,
2. Test piezometer, optical and video instrumentation in preparation for installation of piezometer arrays under the VENUS project.
3. Obtain sub-bottom profiles, cores and grab samples in areas of interest to the Geoscience for Ocean Management of the Georgia Basin project.
4. Test the geotechnical characteristics of the seabed at locations specified as possible locations for VENUS node instrumentation.
5. Assess and improve the quality of ship-based metadata collection and management.
The cruise involved collaboration with marine geologists (Housen, not on board, and Wiser) from the University of Western Washington. A consultant from Christian in situ was hired to deploy the Free-fall cone penetrometer, since this was a first-time deployment from a west coast vessel. We also had on board a metadata specialist (Neelands, GSC) to oversee, learn and advise on data methods. The piston core worked well under the direction of Murphy and with help from all available scientists. Several techniques were new to us, including deployment of the FFCPT, deployment of the splashcam video camera, deployment of a piezometer, deployment of a new optical instrument and completion of new/revised metadata forms. All items in the original cruise plan were successfully completed, except testing of the Optical Backscatter Sensor with Chorophyll Fluorometer. The only unresolved instrument issue was the inaccuracy of the lab GPS, which was not receiving DGPS, and was routinely placing our position up to 150m from actual position, and sporadically placing our position further away.
GEOSCAN ID224031