Repository logo
 
Publication

The Role of the Seismically Slow Centralā€East Atlantic Anomaly in the Genesis of the Canary and Madeira Volcanic Provinces

2021-06-16Journal article Open access
Simple item page
dc.contributor.authorCiviero, Chiara
dc.contributor.authorCustĆ³dio, Susana
dc.contributor.authorNeres, Marta
dc.contributor.authorSchlaphorst, David
dc.contributor.authorMata, JoĆ£o
dc.contributor.authorSilveira, GraƧa
dc.date.accessioned2023-03-22T11:30:03Z
dc.date.available2023-03-22T11:30:03Z
dc.date.issued2021-06-16
dc.descriptionAn edited version of this paper was published by AGU. Copyright (2001) American Geophysical Union.pt_PT
dc.description.abstractThe Canary and Madeira provinces in the Central-East Atlantic Ocean are characterized by an irregular spatio-temporal distribution of volcanism along the hotspot tracks, and several alternative scenarios have been suggested to explain it. Here, we combine results from seismic tomography, shear-wave splitting and gravity along with plate reconstruction constraints to investigate the mantle structure and dynamics beneath those provinces. We find that the Central-East Atlantic Anomaly (CEAA), which rises from the core-mantle boundary and stalls in the topmost lower mantle, is the deep source of distinct upper-mantle upwellings beneath the region. The upwellings detach intermittently from the top of the CEAA and appear to be at different evolutionary stages. We argue that the accumulation of plume material in the topmost lower mantle can play a key role in governing the first-order spatio-temporal irregularities in the distribution of hotspot volcanism.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCiviero, C., CustĆ³dio, S., Neres, M., Schlaphorst, D., Mata, J., & Silveira, G. (2021). The role of the seismically slow Central-East Atlantic Anomaly in the genesis of the Canary and Madeira volcanic provinces. Geophysical Research Letters, 48, e2021GL092874. https://doi.org/10.1029/2021GL092874pt_PT
dc.identifier.doi10.1029/2021GL092874pt_PT
dc.identifier.urihttp://hdl.handle.net/10451/56752
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relationPTDC/CTA- GEF/30264/2017pt_PT
dc.relationPTDC/ GEOFIQ/2590/2014pt_PT
dc.relationPTDC/CTA-GEF/6674/2020pt_PT
dc.relationPTDC/CTA-GEF/1666/2020pt_PT
dc.relationUIDB/50019/2020-IDLpt_PT
dc.relation.publisherversionhttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2021GL092874pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCanary islandspt_PT
dc.subjectMadeira islandpt_PT
dc.subjectVolcanismpt_PT
dc.subjectSeismic tomographypt_PT
dc.titleThe Role of the Seismically Slow Centralā€East Atlantic Anomaly in the Genesis of the Canary and Madeira Volcanic Provincespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue13pt_PT
oaire.citation.titleGeophysical Research Letterspt_PT
oaire.citation.volume48pt_PT
person.familyNameCiviero
person.familyNameCustĆ³dio
person.familyNamede Almeida Neres
person.familyNameSchlaphorst
person.familyNameMata
person.familyNameMedeiros da Silveira
person.givenNameChiara
person.givenNameSusana
person.givenNameMarta Maria
person.givenNameDavid
person.givenNameJoĆ£o
person.givenNameMaria da GraƧa
person.identifierK-3909-2015
person.identifierK-7598-2012
person.identifierhttps://scholar.google.com/citations?user=1xu5R9IAAAAJ&hl=en&oi=ao
person.identifierI-3352-2012
person.identifierA-3081-2009
person.identifier.ciencia-id7F1D-761A-A8CB
person.identifier.ciencia-id2113-1BF3-9A06
person.identifier.ciencia-idDB12-EFB0-9302
person.identifier.ciencia-idD61F-524E-2C62
person.identifier.ciencia-id4312-8A60-15E3
person.identifier.ciencia-id1116-1080-16F3
person.identifier.orcid0000-0002-6809-933X
person.identifier.orcid0000-0001-7457-4179
person.identifier.orcid0000-0003-3939-4636
person.identifier.orcid0000-0001-9959-7393
person.identifier.orcid0000-0001-5769-7708
person.identifier.orcid0000-0002-2110-2554
person.identifier.scopus-author-id15749783000
person.identifier.scopus-author-idhttps://www.scopus.com/authid/detail.uri?authorId=55252272400
person.identifier.scopus-author-id7102806167
person.identifier.scopus-author-id6602698071
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication96799949-e46c-495b-83ce-888a95649dda
relation.isAuthorOfPublicationdba20f14-b09b-41ec-bb39-4ffad37524d4
relation.isAuthorOfPublication76bec847-2a84-4d3f-ad35-67fa731f46ab
relation.isAuthorOfPublicationc5210a35-9a39-4b01-aa68-27fa7f2373f7
relation.isAuthorOfPublication278485d1-0ce7-40c8-b5e2-a0e3465f29bf
relation.isAuthorOfPublicationa6ba2183-dfac-4f3e-9607-93cd0a8f926e
relation.isAuthorOfPublication.latestForDiscoveryc5210a35-9a39-4b01-aa68-27fa7f2373f7

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
GRL 2021 Civiero d.pdf
Size:
3.12 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.2 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

IDL - Artigos em Revistas Internacionais