Fechar
Metadados

@Article{BezerraROMBBNDAG:2014:NeReSh,
               author = "Bezerra, F. H. R. and Rossetti, Dilce de F{\'a}tima and Oliveira, 
                         R. G. and Medeiros, W. E. and Brito Neves, B. B. and Balsamo, F. 
                         and Nogueira, F. C. C. and Dantas, E. L. and Andrades Filho, C. 
                         and Goes, A. M.",
          affiliation = "Univ Fed Rio Grande do Norte, BR-59072970 Natal, RN, Brazil.; 
                         CNPq, INCT ET, Inst Nacl Ciencia \& Tecnol Estudos Tecton, 
                         Brasilia, DF, Brazil. and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and Serv Geol Brasil CPRM, Rio De Janeiro, 
                         Brazil. and Univ Fed Rio Grande do Norte, BR-59072970 Natal, RN, 
                         Brazil.; Inst Nacl Ciencia \& Tecnol Geofis Petr CNPq, INCT GP, 
                         Brasilia, DF, Brazil. and Univ Sao Paulo, Inst Geociencias, 
                         BR-05508 Sao Paulo, Brazil. and Univ Parma, I-43100 Parma, Italy. 
                         and CNPq, INCT ET, Inst Nacl Ciencia \& Tecnol Estudos Tecton, 
                         Brasilia, DF, Brazil.; Univ Fed Campina Grande, Campina Grande, 
                         Paraiba, Brazil. and CNPq, INCT ET, Inst Nacl Ciencia \& Tecnol 
                         Estudos Tecton, Brasilia, DF, Brazil.; Univ Brasilia, BR-70910900 
                         Brasilia, DF, Brazil. and Univ Estadual Rio Grande do Sul, Porto 
                         Alegre, RS, Brazil. and Univ Sao Paulo, Inst Geociencias, BR-05508 
                         Sao Paulo, Brazil.",
                title = "Neotectonic reactivation of shear zones and implications for 
                         faulting style and geometry in the continental margin of NE 
                         Brazil",
              journal = "Tectonophysics",
                 year = "2014",
               volume = "614",
                pages = "78--90",
                month = "Feb.",
             keywords = "continental margin, neotectonics, fault reactivation, post-rift 
                         sediments.",
             abstract = "The eastern continental margin of South America comprises a series 
                         of rift basins developed during the breakup of Pangea in the 
                         Jurassic-Cretaceous. We integrated high resolution aeromagnetic, 
                         structural and stratigraphic data in order to evaluate the role of 
                         reactivation of ductile, Neoproterozoic shear zones in the 
                         deposition and deformation of post-rift sedimentary deposits in 
                         one of these basins, the Paraiba Basin in northeastern Brazil. 
                         This basin corresponds to the last part of the South American 
                         continent to be separated from Africa during the Pangea breakup. 
                         Sediment deposition in this basin occurred in the 
                         Albian-Maastrichtian, Eocene-Miocene, and in the late Quaternary. 
                         However, our investigation concentrates on the Miocene-Quaternary, 
                         which we consider the neotectonic period because it encompasses 
                         the last stress field. This consisted of an E-W-oriented 
                         compression and a N-S-oriented extension. The basement of the 
                         basin forms a slightly seaward-tilted ramp capped by a late 
                         Cretaceous to Quaternary sedimentary cover similar to 100-400 m 
                         thick. Aeromagnetic lineaments mark the major steeply-dipping, 
                         ductile E-W- to NE-striking shear zones in this basement. The 
                         ductile shear zones mainly reactivated as strike-slip, normal and 
                         oblique-slip faults, resulting in a series of Miocene-Quaternary 
                         depocenters controlled by NE-, E-W-, and a few NW-striking faults. 
                         Faulting produced subsidence and uplift that are largely 
                         responsible for the present-day morphology of the valleys and 
                         tablelands in this margin. We conclude that Precambrian shear zone 
                         reactivation controlled geometry and orientation, as well as 
                         deformation of sedimentary deposits, until the Neogene-Quaternary. 
                         (C) 2014 Elsevier B.V. All rights reserved.",
                  doi = "10.1016/j.tecto.2013.12.021",
                  url = "http://dx.doi.org/10.1016/j.tecto.2013.12.021",
                 issn = "0040-1951",
                label = "isi 2014-05 BezerraROMBBNDAG:2014:NeReSh",
             language = "en",
           targetfile = "1-s2.0-S0040195114000055-main.pdf",
                  url = "http://dx.doi.org/10.1016/j.tecto.2013.12.021",
        urlaccessdate = "04 dez. 2020"
}


Fechar