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Sea level changes during the last and present interglacials in Sal Island (Cape Verde archipelago)

dc.contributor.authorZazo Cardeña , Caridad
dc.contributor.authorGoy Goy, José Luis
dc.contributor.authorHillaire-Marcel, Claude
dc.contributor.authorGonzález Delgado, José Ángel
dc.contributor.authorDabrio González, Cristino José
dc.contributor.authorCabero del Río, Ana
dc.contributor.authorBardají Azcárate, Teresa
dc.contributor.authorGhaleb, Bassam
dc.contributor.authorSoler Javaloyes, Vicente
dc.date.accessioned2023-06-20T00:12:58Z
dc.date.available2023-06-20T00:12:58Z
dc.date.issued2010
dc.description.abstractLast interglacial and Holocene deposits are particularly well developed in the southern parts of Sal Island (Cape Verde Archipelago). They primarily consist of low-elevation (≤2 m above sea level [a.s.l.]) marine deposits made of a basal conglomerate embedded in carbonate mud, passing upwards to calcarenites. All deposits contain an abundant fauna with corals, algae and molluscs with Strombus latus Gmelin and accompanying warm water species of the “Senegalese” fauna. Small scale geomorphological mapping with detailed morphosedimentary analysis revealed lateral facies changes and imbricate (offlapping) structures that suggest small-scale oscillations of paleo-sealevels during high sea stand intervals. U-series measurements (in coral fragments) allowed unequivocal identification of Marine Isotope Substage (MIS) 5.5 units, but were not precise enough to date the sea level oscillations of the interval. However, geomorphological data and sedimentary facies analysis suggest a double sea level highstand during the peak of the last interglacial. MIS 5.5 age deposits occur at Sal and the Canary Islands at low topographic elevations, between 1 and 2 masl. However, these values are lower than the elevations measured for the correlative terraces outcropping at the western tropical Atlantic islands, widely considered to be tectonically stable. Combining the results in this paper with earlier investigations of the “Senegalese” fauna distribution as far north as the Mediterranean basin, it is suggested that the last-interglacial oceanic temperatures in this basin, as well as the temperatures in other islands of the Eastern Atlantic and the coasts of Morocco, were warmer than modern temperatures.
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/15702
dc.identifier.doi10.1016/j.gloplacha.2010.01.006
dc.identifier.issn0921-8181
dc.identifier.officialurlhttp://www.elsevier.com/locate/gloplacha
dc.identifier.urihttps://hdl.handle.net/20.500.14352/42212
dc.journal.titleGlobal and Planetary Change
dc.language.isoeng
dc.page.final317
dc.page.initial302
dc.publisherElsevier
dc.rights.accessRightsopen access
dc.subject.cdu551.79(665.8)
dc.subject.keywordEastern Atlantic
dc.subject.keywordLast interglacial
dc.subject.keywordHolocene
dc.subject.keywordMarine terrace
dc.subject.keywordBarrier island
dc.subject.keywordSea level
dc.subject.ucmGeología estratigráfica
dc.subject.unesco2506.19 Estratigrafía
dc.titleSea level changes during the last and present interglacials in Sal Island (Cape Verde archipelago)
dc.typejournal article
dc.volume.number72
dspace.entity.typePublication
relation.isAuthorOfPublication1556fc8c-dd30-40b0-a180-d00679f99678
relation.isAuthorOfPublication55faa814-a938-4b9e-9840-d51419e44f20
relation.isAuthorOfPublication.latestForDiscovery1556fc8c-dd30-40b0-a180-d00679f99678

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