1. Identity statement | |
Reference Type | Journal Article |
Site | mtc-m21c.sid.inpe.br |
Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
Identifier | 8JMKD3MGP3W34R/3TUEKG5 |
Repository | sid.inpe.br/mtc-m21c/2019/09.02.17.20 (restricted access) |
Last Update | 2019:09.02.17.20.45 (UTC) simone |
Metadata Repository | sid.inpe.br/mtc-m21c/2019/09.02.17.20.45 |
Metadata Last Update | 2020:01.06.11.42.18 (UTC) administrator |
DOI | 10.1016/j.precamres.2019.105416 |
ISSN | 0301-9268 |
Citation Key | PadilhaVitoPáduFuck:2019:MaImPa |
Title | Magnetotelluric images of Paleoproterozoic accretion and Mesoproterozoic to Neoproterozoic reworking processes in the northern São Francisco Craton, central-eastern Brazil |
Year | 2019 |
Month | Oct. |
Access Date | 2024, June 16 |
Type of Work | journal article |
Secondary Type | PRE PI |
Number of Files | 1 |
Size | 6693 KiB |
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2. Context | |
Author | 1 Padilha, Antonio Lopes 2 Vitorello, Ícaro 3 Pádua, Marcelo Banik de 4 Fuck, Reinhardt A. |
Resume Identifier | 1 8JMKD3MGP5W/3C9JGJG 2 8JMKD3MGP5W/3C9JHD6 3 8JMKD3MGP5W/3C9JHNR |
Group | 1 DIDGE-CGCEA-INPE-MCTIC-GOV-BR 2 DIDGE-CGCEA-INPE-MCTIC-GOV-BR 3 DIDGE-CGCEA-INPE-MCTIC-GOV-BR |
Affiliation | 1 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 Address | 1 antonio.padilha@inpe.br 2 3 marcelo.banik@inpe.br |
Journal | Precambrian Research |
Volume | 333 |
Pages | 105416 |
Secondary Mark | A1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_CIÊNCIAS_AMBIENTAIS A2_QUÍMICA A2_ENGENHARIAS_II A2_ENGENHARIAS_I A2_CIÊNCIAS_BIOLÓGICAS_I A2_BIODIVERSIDADE B1_MATERIAIS |
History (UTC) | 2019-09-02 17:20:45 :: simone -> administrator :: 2019-09-02 17:20:46 :: administrator -> simone :: 2019 2019-09-02 17:21:07 :: simone -> administrator :: 2019 2019-09-04 14:13:00 :: administrator -> simone :: 2019 2019-12-07 19:49:01 :: simone -> administrator :: 2019 2020-01-06 11:42:18 :: administrator -> simone :: 2019 |
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3. Content and structure | |
Is the master or a copy? | is the master |
Content Stage | completed |
Transferable | 1 |
Content Type | External Contribution |
Version Type | publisher |
Keywords | Northern São Francisco Craton Magnetotellurics Paleoproterozoic accretion Mantle refertilization |
Abstract | Broadband and long period magnetotelluric (MT) data were collected along an east-west oriented, 580-km-longprofile across the northern São Francisco Craton where extensive Proterozoic and Phanerozoic sedimentarycover and lack of deep-probing geophysical surveys have prevented to establish unequivocally the cratoniccharacter of the Archean-Paleoproterozoic lithosphere. Following dimensionality analyses, the MT dataset wasinterpreted using both 2-D and 3-D inversion procedures. The near-surface structure is better resolved in the 2-Dmodel due to itsfiner resolution. A huge upper crustal conductor is found all along the shallow earlyNeoproterozoic Irecê Basin in the central domain of the craton, extending laterally for approximately 150 kmand restricting signal propagation below the basin. Its high conductance is explained by a combination of highporosity and highfluid salinity in the sedimentary package. Another upper crustal conductor is observed on thewest side of the profile, interpreted as fractured metasedimentary rocks of the Rio Preto belt thrusted on top ofthe craton basement during Neoproterozoic marginal collision. The 3-D model explains significantly better themeasured data related to deep structure. Contrary to what is expected for a stable cratonic block, the geoelectricmodel shows pronounced electrical complexity and heterogeneity, an indication that the cratonic lithospherewas multiply reworked in the past by tectonothermal events. Different lithospheric resistive blocks bounded bymajor conductive zones are identified. Constrained by geochemical and isotopic data, these vertical conductiveinterfaces are interpreted as cryptic suture zones due to large-scale amalgamation of continents and micro-continents leading to the assembly of the São Francisco Craton in the Paleoproterozoic. The conductivity en-hancement is more likely explained by emplacement of sulfides along previous suture zones during maficmagmatism. At upper mantle depths, high conductivity observed below most of the profile indicates that me-tasomatism or refertilization processes with incompatible elements caused by the Paleoproterozoic subductingslabs and Mesoproterozoic to Neoproterozoic upwelling of deepfluids and melts reworked this portion of thecraton mantle. |
Area | CEA |
Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Magnetotelluric images of... |
doc Directory Content | access |
source Directory Content | there are no files |
agreement Directory Content | |
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4. Conditions of access and use | |
Language | en |
Target File | padilha_magnetotelluric.pdf |
User Group | simone |
Reader Group | administrator simone |
Visibility | shown |
Archiving Policy | denypublisher denyfinaldraft24 |
Read Permission | deny from all and allow from 150.163 |
Update Permission | not transferred |
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5. Allied materials | |
Next Higher Units | 8JMKD3MGPCW/3EU29DP |
Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.50.10 13 sid.inpe.br/bibdigital/2013/10.01.22.11 4 sid.inpe.br/mtc-m21/2012/07.13.14.40.26 2 |
Dissemination | WEBSCI; PORTALCAPES; MGA; COMPENDEX; SCOPUS. |
Host Collection | urlib.net/www/2017/11.22.19.04 |
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6. Notes | |
Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url |
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7. Description control | |
e-Mail (login) | simone |
update | |
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