Repository logo
 
Publication

Deep structure of the Santos basin-São Paulo plateau system, SE Brazil

2015-08Journal article Restricted access
Simple item page
dc.contributor.authorEvain, M.
dc.contributor.authorAfilhado, Alexandra
dc.contributor.authorRigoti, C.
dc.contributor.authorLoureiro, A.
dc.contributor.authorAlves, D.
dc.contributor.authorKlingelhoefer, Frauke
dc.contributor.authorSchnurle, Philippe
dc.contributor.authorFeld, Aurelie
dc.contributor.authorFuck, R
dc.contributor.authorSoares, J.
dc.contributor.authorLima, M. Vinicius de
dc.contributor.authorCorela, C.
dc.contributor.authorMatias, Luís
dc.contributor.authorBenabdellouahed, M.
dc.contributor.authorBaltzer, A.
dc.contributor.authorRabineau, Marina
dc.contributor.authorViana, A.
dc.contributor.authorMoulin, Maryline
dc.contributor.authorAslanian, Daniel
dc.date.accessioned2016-02-23T15:30:10Z
dc.date.available2016-02-23T15:30:10Z
dc.date.issued2015-08
dc.description.abstractThe structure and nature of the crust underlying the Santos Basin-São Paulo Plateau System (SSPS), in the SE Brazilian margin, are discussed based on five wide-angle seismic profiles acquired during the Santos Basin (SanBa) experiment in 2011. Velocity models allow us to precisely divide the SSPS in six domains from unthinned continental crust (Domain CC) to normal oceanic crust (Domain OC). A seventh domain (Domain D), a triangular shape region in the SE of the SSPS, is discussed by Klingelhoefer et al. (2014). Beneath the continental shelf, a similar to 100km wide necking zone (Domain N) is imaged where the continental crust thins abruptly from similar to 40km to less than 15km. Toward the ocean, most of the SSPS (Domains A and C) shows velocity ranges, velocity gradients, and a Moho interface characteristic of the thinned continental crust. The central domain (Domain B) has, however, a very heterogeneous structure. While its southwestern part still exhibits extremely thinned (7km) continental crust, its northeastern part depicts a 2-4km thick upper layer (6.0-6.5km/s) overlying an anomalous velocity layer (7.0-7.8km/s) and no evidence of a Moho interface. This structure is interpreted as atypical oceanic crust, exhumed lower crust, or upper continental crust intruded by mafic material, overlying either altered mantle in the first two cases or intruded lower continental crust in the last case. The deep structure and v-shaped segmentation of the SSPS confirm that an initial episode of rifting occurred there obliquely to the general opening direction of the South Atlantic Central Segment.pt_PT
dc.identifier.citationEVAIN, M; [et al.] - Deep structure of the Santos basin-São Paulo plateau system, SE Brazil. Journal of Geopgysical Research-Solid Earth. ISSN. 2169-9313. Vol. 120, N.º 8 (2015), pp. 5401-5431pt_PT
dc.identifier.doi10.1002/2014JB011561pt_PT
dc.identifier.issn2169-9313
dc.identifier.issn2169-9356
dc.identifier.urihttp://hdl.handle.net/10400.21/5709
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmer Geophysical Unionpt_PT
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/doi/10.1002/2014JB011561/fullpt_PT
dc.subjectSantos Basinpt_PT
dc.subjectSão Paulo Plateaupt_PT
dc.subjectCrustal structurept_PT
dc.subjectWide-angle seismicpt_PT
dc.titleDeep structure of the Santos basin-São Paulo plateau system, SE Brazilpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage5431pt_PT
oaire.citation.issue8pt_PT
oaire.citation.startPage5401pt_PT
oaire.citation.volume120pt_PT
person.familyNameAfilhado
person.familyNameKlingelhoefer
person.familyNameSchnurle
person.familyNameRabineau
person.familyNameAslanian
person.givenNameAlexandra
person.givenNameFrauke
person.givenNamePhilippe
person.givenNameMarina
person.givenNameDaniel
person.identifier623759
person.identifier.ciencia-id7314-CD91-482F
person.identifier.orcid0000-0003-0256-8540
person.identifier.orcid0000-0001-5838-0577
person.identifier.orcid0000-0003-4400-8402
person.identifier.orcid0000-0001-8420-1587
person.identifier.orcid0000-0002-9394-606X
person.identifier.ridA-2267-2013
person.identifier.ridE-3408-2010
person.identifier.scopus-author-id24381876200
person.identifier.scopus-author-id35975204200
person.identifier.scopus-author-id6701517007
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8c33b6bc-ca31-4d7a-a9e4-a6a694e809d3
relation.isAuthorOfPublication81550603-ece5-4f86-af46-21719c535a31
relation.isAuthorOfPublication91916c60-275d-4200-a951-9903de48ba8f
relation.isAuthorOfPublicationdd9d92ab-cbd5-480f-87a2-61b59fdadd9b
relation.isAuthorOfPublication4cdee7fa-c581-427b-9513-df28a489a461
relation.isAuthorOfPublication.latestForDiscoverydd9d92ab-cbd5-480f-87a2-61b59fdadd9b

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Deep structure_.._Brazil.pdf
Size:
23.32 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ISEL - Eng. Civil - Artigos