Monsoon-driven Saharan dust variability over the past 240,000 years
dc.rights.license | open | en_US |
hal.structure.identifier | Géosciences Paris Sud [GEOPS] | |
hal.structure.identifier | Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge] [EAPS] | |
dc.contributor.author | SKONIECZNY, C. | |
hal.structure.identifier | Massachusetts Institute of Technology [MIT] | |
dc.contributor.author | MCGEE, D. | |
hal.structure.identifier | Lamont-Doherty Earth Observatory [LDEO] | |
hal.structure.identifier | Department of Earth and Environmental Sciences, Columbia University | |
dc.contributor.author | WINCKLER, G. | |
hal.structure.identifier | Department of Environmental Studies [Saint-Paul] | |
dc.contributor.author | L.I., Bradtmiller | |
hal.structure.identifier | Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge] [EAPS] | |
dc.contributor.author | C.W., Kinsley | |
hal.structure.identifier | Columbia University [New York] | |
dc.contributor.author | P.J., Polissar | |
hal.structure.identifier | Departamento de Oceanografía [Concepción] | |
dc.contributor.author | DE POL-HOLZ, Ricardo | |
hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
dc.contributor.author | ROSSIGNOL, Linda | |
hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
dc.contributor.author | MALAIZE, Bruno | |
dc.date.accessioned | 2024-02-29T14:03:42Z | |
dc.date.available | 2024-02-29T14:03:42Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 2375-2548 | en_US |
dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/188510 | |
dc.description.abstractEn | Reconstructions of past Saharan dust deposition in marine sediments provide foundational records of North African climate over time scales of 10(3) to 10(6) years. Previous dust records show primarily glacial-interglacial variability in the Pleistocene, in contrast to other monsoon records showing strong precessional variability. Here, we present the first Saharan dust record spanning multiple glacial cycles obtained using Th-230 normalization, an improved method of calculating fluxes. Contrary to previous data, our record from the West African margin demonstrates high correlation with summer insolation and limited glacial-interglacial changes, indicating coherent variability in the African monsoon belt throughout the late Pleistocene. Our results demonstrate that low-latitude Saharan dust emissions do not vary synchronously with high-and mid-latitude dust emissions, and they call into question the use of existing Plio-Pleistocene dust records to investigate links between climate and hominid evolution. | |
dc.language.iso | EN | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/ | |
dc.title.en | Monsoon-driven Saharan dust variability over the past 240,000 years | |
dc.type | Article de revue | en_US |
dc.identifier.doi | 10.1126/sciadv.aav1887 | en_US |
dc.subject.hal | Planète et Univers [physics] | en_US |
dc.subject.hal | Planète et Univers [physics]/Sciences de la Terre | en_US |
dc.subject.hal | Sciences de l'environnement | en_US |
bordeaux.journal | Science Advances | en_US |
bordeaux.page | eaav1887 | en_US |
bordeaux.volume | 5 | en_US |
bordeaux.hal.laboratories | EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805 | en_US |
bordeaux.issue | 1 | en_US |
bordeaux.institution | Université de Bordeaux | en_US |
bordeaux.institution | CNRS | en_US |
bordeaux.team | PALEO | en_US |
bordeaux.peerReviewed | oui | en_US |
bordeaux.inpress | non | en_US |
bordeaux.import.source | hal | |
hal.identifier | hal-01971717 | |
hal.version | 1 | |
hal.popular | non | en_US |
hal.audience | Internationale | en_US |
hal.export | false | |
workflow.import.source | hal | |
dc.rights.cc | Pas de Licence CC | en_US |
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