| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m21b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 8JMKD3MGP5W34M/3GD3GM5 |
| Repository | sid.inpe.br/mtc-m21b/2014/05.30.02.24.03 (restricted access) |
| Last Update | 2014:07.16.13.55.54 (UTC) administrator |
| Metadata Repository | sid.inpe.br/mtc-m21b/2014/05.30.02.24.04 |
| Metadata Last Update | 2018:06.04.03.04.16 (UTC) administrator |
| DOI | 10.1002/2013GC004970 |
| ISSN | 1525-2027 |
| Label | scopus 2014-05 BolognaPadPádVitCha:2014:FuTeBo |
| Citation Key | BolognaPadPádVitCha:2014:FuTeBo |
| Title | Paraguay-Araguaia belt conductivity anomaly: A fundamental tectonic boundary in South American Platform imaged by electromagnetic induction surveys  |
| Year | 2014 |
| Access Date | 2024, May 22 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 1880 KiB |
| 2. Context | |
| Author | 1 Bologna, M. S. 2 Padilha, Antonio Lopes 3 Pádua, Marcelo Banik de 4 Vitorello, Ícaro 5 Chamalaun, F. H. |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JGJG 3 8JMKD3MGP5W/3C9JHNR 4 8JMKD3MGP5W/3C9JHD6 |
| Group | 1 2 DGE-CEA-INPE-MCTI-GOV-BR 3 DGE-CEA-INPE-MCTI-GOV-BR 4 DGE-CEA-INPE-MCTI-GOV-BR |
| Affiliation | 1 Departamento de Geofísica, Universidade de São Paulo, Rua do Matão 1226, São Paulo 05508-090, Brazil 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 School of Chemistry, Physics and Earth Sciences, Flinders University, Adelaide SA, Australia |
| Author e-Mail Address | 1 2 antonio.padilha@inpe.br 3 marcelo.banik@inpe.br 4 icaro@dge.inpe.br |
| e-Mail Address | marcelo.pazos@inpe.br |
| Journal | Geochemistry, Geophysics, Geosystems |
| Volume | 15 |
| Number | 3 |
| Pages | 509-515 |
| Secondary Mark | A1_GEOCIÊNCIAS |
| History (UTC) | 2018-06-04 03:04:16 :: administrator -> marcelo.pazos@inpe.br :: 2014 |
| 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 | Electric conductivity Electromagnetic induction Magnetometers Magnetotellurics Metals Amazon craton Electrical conductivity GDS Plate boundaries West Gondwana Tectonics Cambrian craton crustal structure deformation mechanism electrical conductivity electromagnetic field geoelectric field Gondwana lithospheric structure magnetotelluric method plate boundary suture zone Paraguay |
| Abstract | We discovered and mapped a 1200 km-long zone of enhanced electrical conductivity through a large array of magnetometers, over a narrow corridor parallel to the Paraguay and Araguaia belts which surround the Amazon craton. The anomaly has been further studied using magnetotelluric measurements made along a 300 km profile crossing the Paraguay belt; modeling shows the anomaly at this location as a very strong 100 km-wide upper-crust to mid-crust conductor, located under a region where surficial rocks show an increase in deformation and metamorphism within the belt. From the high conductivity of the anomalous structure, its observed geometry and surface rock exposures, the most likely interpretation of its source is graphitized biogenic material in metasediments, now deeply underthrust in a Neoproterozoic or Early Cambrian suture zone. This result strongly supports the hypothesis that the collision between the Amazon plate and the western Paraná block has probably closed an ocean in the Paraguay belt region, contrary to former propositions of an ensialic evolution for this belt. Although the precise age of this ocean closure have been a matter of debate, our finding significantly constrains the tectonic setting of West Gondwana amalgamation involving the Amazon plate and its surrounding blocks. Key Points Mapping of geoelectric anomalies using a large array of magnetometers Strong conductivity anomalies in the lithosphere marginal to the Amazon craton Integration of GDS and MT data constrains the West Gondwana amalgamation ©2013. American Geophysical Union. All Rights Reserved. |
| Area | CEA |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Paraguay-Araguaia belt conductivity... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | Bologna_etal_2014.pdf |
| User Group | administrator marcelo.pazos@inpe.br self-uploading-INPE-MCTI-GOV-BR |
| Reader Group | administrator marcelo.pazos@inpe.br |
| Visibility | shown |
| Read Permission | deny from all and allow from 150.163 |
| Update Permission | not transferred |
| 5. Allied materials | |
| Mirror Repository | iconet.com.br/banon/2006/11.26.21.31 |
| Next Higher Units | 8JMKD3MGPCW/3EU29DP |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.54.32 2 sid.inpe.br/mtc-m21/2012/07.13.14.50.10 2 sid.inpe.br/mtc-m21/2012/07.13.14.40.26 2 |
| Dissemination | WEBSCI; SCOPUS. |
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 |
| 6. Notes | |
| Empty Fields | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel format isbn lineage mark month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url |
| 7. Description control | |
| e-Mail (login) | marcelo.pazos@inpe.br |
| update | |