2012
DOI: 10.5327/z1519-874x2012000100007
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Caracterização meso e microscópica de bandas de deformação em arenitos porosos: um exemplo nas tectonossequências Paleozoica, Pré- e Sin-rifte da Bacia do Araripe, Nordeste do Brasil

Abstract: Disponível on-line no endereço www.igc.usp.br/geologiausp -83 - ResumoBandas de deformação são estreitos volumes tabulares desenvolvidos em arenitos porosos. Apesar de produzidas em condições de deformação frágil, internamente podem apresentar gradiente de deslocamento contínuo. Quando o mecanismo de deformação dominante durante a nucleação dessas bandas é a cataclase granular, podem ser alteradas significativamente as propriedades originais de suas rochas hospedeiras, tais como porosidade e permeabilidade. Ba… Show more

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Cited by 2 publications
(1 citation statement)
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“…1) with the purpose of gaining information about subseismic structures; their nature, distribution and orientation, and the strain regime that they represent. The Tucano basin fill is dominated by porous sandstones in which faults developed through a precursory history of deformation band formation (Chemalle Jr. et al, 1994;Roque and Chemale Jr., 1994;Ferreira and Da Silva, 2010;De Araújo Netto et al, 2012), including the formation of conjugate sets of bands, deformation band zones and ladder structures. These structures record local strain and are thus used in this work to characterize strain in the transfer zone.…”
Section: Introductionmentioning
confidence: 99%
“…1) with the purpose of gaining information about subseismic structures; their nature, distribution and orientation, and the strain regime that they represent. The Tucano basin fill is dominated by porous sandstones in which faults developed through a precursory history of deformation band formation (Chemalle Jr. et al, 1994;Roque and Chemale Jr., 1994;Ferreira and Da Silva, 2010;De Araújo Netto et al, 2012), including the formation of conjugate sets of bands, deformation band zones and ladder structures. These structures record local strain and are thus used in this work to characterize strain in the transfer zone.…”
Section: Introductionmentioning
confidence: 99%