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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21b.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34P/3LF2S5H
Repositorysid.inpe.br/mtc-m21b/2016/04.05.13.19   (restricted access)
Last Update2016:04.05.13.20.04 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21b/2016/04.05.13.19.29
Metadata Last Update2018:06.04.02.40.38 (UTC) administrator
DOI10.1016/j.precamres.2015.12.012
ISSN0301-9268
Citation KeyPadilhaVitoPáduFuck:2016:DeMaSi
TitleDeep magnetotelluric signatures of the early Neoproterozoic Cariris Velhos tectonic event within the Transversal sub-province of the Borborema Province, NE Brazil
Year2016
MonthApr.
Access Date2024, May 23
Type of Workjournal article
Secondary TypePRE PI
Number of Files1
Size4760 KiB
2. Context
Author1 Padilha, Antonio Lopes
2 Vitorello, Ícaro
3 Pádua, Marcelo Banik de
4 Fuck, Reinhardt Adolfo
Resume Identifier1 8JMKD3MGP5W/3C9JGJG
2 8JMKD3MGP5W/3C9JHD6
3 8JMKD3MGP5W/3C9JHNR
Group1 DGE-CEA-INPE-MCTI-GOV-BR
2 DGE-CEA-INPE-MCTI-GOV-BR
3 DGE-CEA-INPE-MCTI-GOV-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
4 Universidade de Brasília (UnB)
Author e-Mail Address1 antonio.padilha@inpe.br
2 icaro@dge.inpe.br
3 marcelo.banik@inpe.br
4 reinhardt@unb.br
JournalPrecambrian Research
Volume275
Pages70-83
Secondary MarkA1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_CIÊNCIAS_AMBIENTAIS A2_QUÍMICA A2_ENGENHARIAS_II A2_ENGENHARIAS_I A2_CIÊNCIAS_BIOLÓGICAS_I A2_BIODIVERSIDADE B1_MATERIAIS
History (UTC)2016-04-05 13:19:29 :: simone -> administrator ::
2016-07-04 12:29:58 :: administrator -> simone :: 2016
2016-12-21 12:24:36 :: simone -> administrator :: 2016
2018-06-04 02:40:38 :: administrator -> simone :: 2016
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsNortheast Brazil
Borborema Province
Magnetotellurics
Subduction zone
Neoproterozoic
Cariris Velhos Orogeny
AbstractThe Borborema structural province, in northeast Brazil, consists of a complex set of crustal blocks of different ages, origin and evolution, with final amalgamation during the late Neoproterozoic Brasiliano Orogeny. In the central part of the province, its Transversal sub-province is characterized by elongate NE-SW terranes largely affected by the Brasiliano metamorphic overprinting and by a suite of early Neoproterozoic metavolcanic and metaplutonic rocks, reflecting a distinct tectonic event (Cariris Velhos). Magnetotelluric (MT) data were collected at 64 stations along four profiles across this central region of the province to assess its deep electrical resistivity structure. Dimensionality analysis shows that the subsurface is electrically dominated by 3D structure, and 3D inversions of the full impedance tensor and vertical magnetic transfer function (tipper) were carried out. Data fit is relatively good with an acceptable distribution of the misfit between the sites and the dominant features in the final model are north-dipping crustal conductors, which can be tentatively correlated between the different MT profiles and cross contrasting terranes at the surface of the province. Considering the geometry and distribution of the conductors, it is proposed that they might reflect remnants of a north-directed subduction zone with enhanced conductivity associated with graphitized biogenic material in metasedimentary rocks originally deposited in a restricted oceanic environment and subsequently metamorphosed and introduced into the deep crust by the subduction of the oceanic lithosphere. Constrained by isolated outcrops of early Neoproterozoic rocks with oceanic affinity, the proposed subduction event may have taken place during the Cariris Velhos Orogeny with the crustal remobilization by the Brasiliano Orogeny being restricted to the brittle upper crust. This interpretation gives support for an accretionary model to the Neoproterozoic geodynamic evolution of the Borborema Province.
AreaCEA
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Deep magnetotelluric signatures...
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4. Conditions of access and use
Languageen
Target FilePadilha_deep.pdf
User Groupsimone
Reader Groupadministrator
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Visibilityshown
Archiving Policydenypublisher denyfinaldraft24
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Mirror Repositoryurlib.net/www/2011/03.29.20.55
Next Higher Units8JMKD3MGPCW/3EU29DP
Citing Item Listsid.inpe.br/bibdigital/2013/10.01.22.11 4
sid.inpe.br/mtc-m21/2012/07.13.14.50.10 2
sid.inpe.br/mtc-m21/2012/07.13.14.54.32 1
DisseminationWEBSCI; PORTALCAPES; MGA; COMPENDEX; SCOPUS.
Host Collectionsid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notes
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