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Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system

2019-11Journal article Restricted
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dc.contributor.authorLanci, Luca
dc.contributor.authorZanella, Elena
dc.contributor.authorJovane, Luigi
dc.contributor.authorGaleotti, Simone
dc.contributor.authorAlonso-Garcia, Montserrat
dc.contributor.authorAlvarez-Zarikian, Carlos A.
dc.contributor.authorBejugam, Nagender Nath
dc.contributor.authorBetzler, Christian
dc.contributor.authorBialik, Or M.
dc.contributor.authorBlattler, Clara L.
dc.contributor.authorEberlik, Gregor P.
dc.contributor.authorGuo, Junhua Adam
dc.contributor.authorHaffen, Sebastien
dc.contributor.authorHorozal, Senay
dc.contributor.authorInoue, Mayuri
dc.contributor.authorKroon, Dick
dc.contributor.authorLaya, Juan Carlos
dc.contributor.authorMee, Anna Ling Hui
dc.contributor.authorLuedmann, Thomas
dc.contributor.authorNakakunir, Masatoshi
dc.contributor.authorNiino, Kaoru
dc.contributor.authorPetruny, Loren M.
dc.contributor.authorPratiwi, Santi D.
dc.contributor.authorReijmer, John J. G.
dc.contributor.authorReolid, Jesus
dc.contributor.authorSlagle, Angela L.
dc.contributor.authorSloss, Craig R.
dc.contributor.authorSu, Xiang
dc.contributor.authorSwart, Peter K.
dc.contributor.authorWright, James D.
dc.contributor.authorYao, Zhengquan
dc.contributor.authorYoung, Jeremy R.
dc.date.accessioned2020-07-24T10:51:09Z
dc.date.available2021-11-01T01:30:18Z
dc.date.issued2019-11
dc.description.abstractWe report a study of the magnetic stratigraphy and the anisotropy of isothermal remanent magnetization of Pliocene sediments from International Ocean Discovery Program (IODP) Site U1467 drilled in the Maldives platform (Indian Ocean) during Exp. 359. Magnetic stratigraphy gives a precise record of geomagnetic reversals of the early Pliocene from approximately 5.3 Ma to 3.1 Ma providing a detailed age model in an interval where the biostratigraphic record is scarce. We use the anisotropy of isothermal remanent magnetization (AIRM) to investigate the statistical orientation of fine magnetic particles and provide data on the strength and direction of bottom currents during the early Pliocene. The strength of bottom currents recorded by the AIRM, shows a prominent increase at the top of Chron C3n.1n (about 4.2 Ma), and the current direction (NE - SW) is consistent with that of modern instrumental measurements. Since bottom currents in the Maldives are driven by the monsoon, we speculate that the 4.2 Ma increase of bottom currents could mark the onset of the present-day setting, probably related to the coeval uplift phase of the Himalayan plateau.
dc.description.sponsorshipIODP-Italia
dc.description.sponsorshipUniversity of Urbino (DiSPeA)
dc.identifier.doi10.1016/j.palaeo.2019.109283
dc.identifier.issn0031-0182
dc.identifier.issn1872-616X
dc.identifier.urihttp://hdl.handle.net/10400.1/14202
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.subjectIndian-Ocean
dc.subjectPolar Wander
dc.subjectSusceptibility
dc.subjectOrientation
dc.subjectAnisotropy
dc.subjectRemanence
dc.subjectCurrents
dc.subjectUplift
dc.subjectFlow
dc.titleMagnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPageUNSP 109283
oaire.citation.titlePalaeogeography, Palaeoclimatology, Palaeoecology
oaire.citation.volume533
person.familyNameAlonso-Garcia
person.givenNameMontserrat
person.identifier.ciencia-id5B1B-33EE-50B9
person.identifier.orcid0000-0002-0241-2178
person.identifier.scopus-author-id51565655800
rcaap.contributor.authoremailluca.lanci@uniurb.it
rcaap.rightsopenAccesspt_PT
rcaap.typearticle
relation.isAuthorOfPublication7772f374-a9c2-41e7-a798-4d811b8a9a48
relation.isAuthorOfPublication.latestForDiscovery7772f374-a9c2-41e7-a798-4d811b8a9a48

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