Sea floor morphology and Plio-Quaternary sedimentary cover of the Mallorca Channel, Balearic Islands, western Mediterranean

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dc.contributor.authorAcosta, Juan
dc.contributor.authorCanals, Miquel
dc.contributor.authorCarbo Gorosabel, Andrés
dc.contributor.authorMuñoz, Araceli
dc.contributor.authorUrgeles, R.
dc.contributor.authorMuñoz Martín, Alfonso
dc.contributor.authorUchupi, E.
dc.date.accessioned2023-06-20T12:44:48Z
dc.date.available2023-06-20T12:44:48Z
dc.date.issued2004
dc.description.abstractA complete multibeam coverage of the sea floor of Mallorca Channel, in the western Mediterranean, was recorded during the Spanish Exclusive Economic Zone surveys in 1995, 1996 and 1997. These data, combined with previous high-resolution seismic reflection profiles, allow an assessment of the geomorphology of the area. The channel seafloor is disrupted by a fault complex and pockmarks. Motion along the faults split the sea floor into a series of undulations separated by narrow V-shaped notches. Faulting may be a consequence of recent seaward gravitational sliding that occurred along a soft surface at the top of a late Messinian–early Pliocene unit and a late Messinian evaporite. These units have been tilted during recent subsidence of the Mallorca Channel at the same time that the insular shelf was uplifted along a fault at the shelf’s edge. The set of pockmarks in the channel sequence were probably formed by the expulsion of gas of hydrothermal origin, and expulsion may have been enhanced by the faulting. This gas seepage could be an additional factor leading to sediment instability.
dc.description.departmentDepto. de Geodinámica, Estratigrafía y Paleontología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/5964
dc.identifier.doi10.1016/j.margeo.2004.02.008
dc.identifier.issn0025-3227
dc.identifier.officialurlhttp://www.elsevier.com/wps/find/journaldescription.cws_home/503350/description#description
dc.identifier.urihttps://hdl.handle.net/20.500.14352/52409
dc.journal.titleMarine Geology
dc.language.isoeng
dc.page.final179
dc.page.initial165
dc.rights.accessRightsopen access
dc.subject.keywordBalearic Islands
dc.subject.keywordGeohazards
dc.subject.keywordLandslides
dc.subject.keywordRaft tectonics
dc.subject.keywordPockmarks
dc.subject.ucmGeodinámica
dc.subject.unesco2507 Geofísica
dc.titleSea floor morphology and Plio-Quaternary sedimentary cover of the Mallorca Channel, Balearic Islands, western Mediterranean
dc.typejournal article
dc.volume.number206
dspace.entity.typePublication
relation.isAuthorOfPublication0b951829-65a7-4e09-ba68-d53c60e74bfb
relation.isAuthorOfPublication70f369a3-b3cd-43cb-874e-a7888da25de1
relation.isAuthorOfPublication.latestForDiscovery70f369a3-b3cd-43cb-874e-a7888da25de1
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