georefid:1985-006080SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=1985-006080<gco:CharacterString>Etude de la transition continent-ocean sur la marge continentale Nord Gascone a partir des documents enregistres lors de la campagne sismique refraction a deux bateaux IPOD 79 Study of land to ocean transition on the continental margin of northern Bay of Biscay from data recorded in the frame of IPOD 79 two-ship refraction seismics campaign</gco:CharacterString>1981-01-01publicationgeorefid:1985-006080Camus, Anne-LiseauthordocumentHardcopy373 pp.This memoir, prepared in the frame the IPOD 79 expedition, aims at specifying, through refraction seismics, the transition between oceanic and continental crusts in N Bay of Biscay. The data were recorded in July 1979 during an original campaign involving two ships. The seismic lines were laid in the various zones: continental, transition, oceanic zones. In order to attain the selected objectives (determination of discontinuities down to mantle), several seismic methods were applied on the various lines: conventional reflection, central common point line, fixed distance (30 km and 5 km) line, receivers laid on sea floor (OBS). These data were processed by means of newly developed programs. A model of geological structures (velocity, depth and trend of discontinuities) across the continental margin of N Bay of Biscay could finally be worked outcompletedSolid-earth geophysicsAtlantic OceanBay of Biscayblock structurescommon-depth-point methodcontinental crustcrustdata processingfaultsgeophysical methodsgeophysical surveysmarine methodsMohorovicic discontinuityNorth Atlanticoceanic crustpassive marginsplate tectonicsreflection methodsrefraction methodsseismic methodsstructural geologysurveystectonicstectonophysicsthesesFrenchgeoscientificInformation-8.0000-1.100043.200048.0000Bay of Biscay