Qualitative and semiquantitative interpretation of aeromagnetic data over the Lancinha Shear Zone, Southern Ribeira Belt, in Paraná State, Southern Brazil

The characterization of shear zones at the southern portion of the Ribeira Belt, PR, BR, as well as its recognition in depth is a major challenge. Despite the lack of subsurface information, the influence of such structures on the installation and evolution of the Paraná Basin during the Phanero...

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Main Authors: Luís Gustavo de Castro, Francisco José Fonseca Ferreira, Leonardo Fadel Cury, Alberto Pio Fiori, Paulo Cesar Soares, Angela Pacheco Lopes, Maria José Oliveira
Format: Article
Language:English
Published: Universidade de São Paulo 2014-12-01
Series:Geologia USP. Série Científica
Subjects:
Online Access:http://ppegeo.igc.usp.br/pdf/guspsc/v14n4/01.pdf
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author Luís Gustavo de Castro
Francisco José Fonseca Ferreira
Leonardo Fadel Cury
Alberto Pio Fiori
Paulo Cesar Soares
Angela Pacheco Lopes
Maria José Oliveira
author_facet Luís Gustavo de Castro
Francisco José Fonseca Ferreira
Leonardo Fadel Cury
Alberto Pio Fiori
Paulo Cesar Soares
Angela Pacheco Lopes
Maria José Oliveira
author_sort Luís Gustavo de Castro
collection DOAJ
description The characterization of shear zones at the southern portion of the Ribeira Belt, PR, BR, as well as its recognition in depth is a major challenge. Despite the lack of subsurface information, the influence of such structures on the installation and evolution of the Paraná Basin during the Phanerozoic is widely accepted. Therefore, in this paper, are applied methods of anomaly enhancement (qualitative analysis) and estimative of the sources depth (semiquantitative analysis), on the aeromagnetic coverage of the Lancinha Shear Zone area (LSZ) in the Paraná state, in order to verify its spatial arrangement in subsurface. The processing resulted in the interpretation of magnetic-structural framework of the study area, which was validated by the depth estimative of the magnetic sources (Euler solutions). The results indicated the extension of the Lancinha, Morro Agudo and Itapirapuã shear zones under the Paraná Basin coverage.
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spelling doaj.art-20b3f9cc0a0d48f1bbf70df68b585ad82022-12-22T01:58:57ZengUniversidade de São PauloGeologia USP. Série Científica1519-874X2316-90952014-12-0114431810.5327/Z1519-874X201400040001Qualitative and semiquantitative interpretation of aeromagnetic data over the Lancinha Shear Zone, Southern Ribeira Belt, in Paraná State, Southern BrazilLuís Gustavo de Castro0Francisco José Fonseca Ferreira1Leonardo Fadel Cury2Alberto Pio Fiori3Paulo Cesar Soares4Angela Pacheco Lopes5Maria José Oliveira6Pós-graduação em Geologia, Departamento de Geologia, Setor de Ciências da Terra, Universidade Federal do Paraná - UFPRDepartamento de Geologia, Universidade Federal do Paraná - UFPRDepartamento de Geologia, Universidade Federal do Paraná - UFPRDepartamento de Geologia, Universidade Federal do Paraná - UFPRDepartamento de Geologia, Universidade Federal do Paraná - UFPRServiço Geológico do Brasil - CPRM, Residência de Fortaleza, Fortaleza, CEPetróleo Brasileiro S.A. - PETROBRAS, Rio de Janeiro, RJ, BRThe characterization of shear zones at the southern portion of the Ribeira Belt, PR, BR, as well as its recognition in depth is a major challenge. Despite the lack of subsurface information, the influence of such structures on the installation and evolution of the Paraná Basin during the Phanerozoic is widely accepted. Therefore, in this paper, are applied methods of anomaly enhancement (qualitative analysis) and estimative of the sources depth (semiquantitative analysis), on the aeromagnetic coverage of the Lancinha Shear Zone area (LSZ) in the Paraná state, in order to verify its spatial arrangement in subsurface. The processing resulted in the interpretation of magnetic-structural framework of the study area, which was validated by the depth estimative of the magnetic sources (Euler solutions). The results indicated the extension of the Lancinha, Morro Agudo and Itapirapuã shear zones under the Paraná Basin coverage.http://ppegeo.igc.usp.br/pdf/guspsc/v14n4/01.pdfShear ZoneMagnetometryEnhancement methodsEuler deconvolution.
spellingShingle Luís Gustavo de Castro
Francisco José Fonseca Ferreira
Leonardo Fadel Cury
Alberto Pio Fiori
Paulo Cesar Soares
Angela Pacheco Lopes
Maria José Oliveira
Qualitative and semiquantitative interpretation of aeromagnetic data over the Lancinha Shear Zone, Southern Ribeira Belt, in Paraná State, Southern Brazil
Geologia USP. Série Científica
Shear Zone
Magnetometry
Enhancement methods
Euler deconvolution.
title Qualitative and semiquantitative interpretation of aeromagnetic data over the Lancinha Shear Zone, Southern Ribeira Belt, in Paraná State, Southern Brazil
title_full Qualitative and semiquantitative interpretation of aeromagnetic data over the Lancinha Shear Zone, Southern Ribeira Belt, in Paraná State, Southern Brazil
title_fullStr Qualitative and semiquantitative interpretation of aeromagnetic data over the Lancinha Shear Zone, Southern Ribeira Belt, in Paraná State, Southern Brazil
title_full_unstemmed Qualitative and semiquantitative interpretation of aeromagnetic data over the Lancinha Shear Zone, Southern Ribeira Belt, in Paraná State, Southern Brazil
title_short Qualitative and semiquantitative interpretation of aeromagnetic data over the Lancinha Shear Zone, Southern Ribeira Belt, in Paraná State, Southern Brazil
title_sort qualitative and semiquantitative interpretation of aeromagnetic data over the lancinha shear zone southern ribeira belt in parana state southern brazil
topic Shear Zone
Magnetometry
Enhancement methods
Euler deconvolution.
url http://ppegeo.igc.usp.br/pdf/guspsc/v14n4/01.pdf
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