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

Authors

  • Luís Gustavo de Castro Universidade Federal do Paraná; Departamento de Geologia; Setor de Ciências da Terra
  • Francisco José Fonseca Ferreira Universidade Federal do Paraná; Departamento de Geologia
  • Leonardo Fadel Cury Universidade Federal do Paraná; Departamento de Geologia
  • Alberto Pio Fiori Universidade Federal do Paraná; Departamento de Geologia
  • Paulo Cesar Soares Universidade Federal do Paraná; Departamento de Geologia
  • Angela Pacheco Lopes CPRM; Serviço Geológico do Brasil
  • Maria José Oliveira Petróleo Brasileiro S.A.

DOI:

https://doi.org/10.5327/Z1519-874X201400040001

Abstract

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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Published

2014-12-01

Issue

Vol. 14 No. 4 (2014)

Section

Articles

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How to Cite

Castro, L. G. de, Ferreira, F. J. F., Cury, L. F., Fiori, A. P., Soares, P. C., Lopes, A. P., & Oliveira, M. J. (2014). Qualitative and semiquantitative interpretation of aeromagnetic data over the Lancinha Shear Zone, southern Ribeira Belt, in Paraná state, southern Brazil . Geologia USP. Série Científica, 14(4), 3-18. https://doi.org/10.5327/Z1519-874X201400040001