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[[file:Parana_1.jpg|300px|thumb|Figure 1. Geological Map of the Paraná Basin.<ref name=Milani_2004>Milani, E. J., 2004. Comentários sobre a origem e evolução tectônica da Bacia do Paraná. In: Mantesso-Neto V., Bartorelli A., Carneiro C.D.R., Brito-Neves B.B. (eds.) Geologia do Continente Sul-Americano: Evolução da Obra de Fernando Flávio Marques de Almeida. São Paulo: Editora Beca, p.265-279.</ref>]]

[[file:Parana_1.jpg|300px|thumb|Figure 1. Geological Map of the Paraná Basin.<ref name=Milani_2004>Milani, E. J., 2004, Comentários sobre a origem e evolução tectônica da Bacia do Paraná, ''in'' V. Mantesso-Neto, A. Bartorelli, C. D. R. Carneiro, and B. B. Brito-Neves, eds., Geologia do Continente Sul-Americano: Evolução da Obra de Fernando Flávio Marques de Almeida: São Paulo, Brazil, Editora Beca, p. 265–279.</ref>]]

According to Milani et al,<ref name=Milani_2007b>Milani, E.J., Melo, J.H.G., Souza, P.A., Fernandes, L.A., França, A.B., 2007b. Bacia do Paraná. Boletim de Geociências da Petrobras, Rio de Janeiro, 15(2): 265–287.</ref> the Paraná Basin is a large sedimentary region of South America, which includes territorial portions of southern Brazil, eastern Paraguay, northeastern Argentina and northern Uruguay, totaling an area which is close to 1.5 million square kilometers ([[:file:Parana_1.jpg|Figure 1]]). The basin has an oval shape with the major axis N-S, its current boundary is defined by erosive limits related largely to the [[Mesozoic]]-[[Cenozoic]] tectonic history of the continent. Numerous researchers have been involved in the investigation of this basin, some of these works were of particular relevance as a regional summaries, highlighting the White report<ref name=White_1908>White, I. C., 1908, Relatório sobre as coal measures e rochas associadas ao sul do Brasil. Rio de Janeiro: Comissão das Minas de Carvão de Pedra do Brasil, 300 p.</ref>, the works of Sanford and Lange,<ref name=Sanford_et_Lange_1960>Sanford, R. M. and F. W. Lange, 1960, [http://archives.datapages.com/data/bulletns/1957-60/data/pg/0044/0008/1300/1316.htm Basin-study approach to oil evaluation of Paraná miogeosyncline, south Brazil]: AAPG Bulletin, vol. 44, p. 1316-1370</ref> Northfleet et al.,<ref name=Northfleet_1969>Northfleet, A. A., R. A. Medeiros, and H. Mühlmann, 1969, Reavaliação dos dados geológicos da Bacia do Paraná. Boletim Técnico da Petrobras, Rio de Janeiro, v.12, n.3, p. 291-346</ref>, Schneider et al.<ref name=Schneider_1974>Scneider, R. L.; H. Mühlmann, E. Tommasi, R. A. Medeiros, R. F. Daemon, and A. A. Noguierra, 1974, Revisão estratigráfica da Bacia do Paraná. In: Congresso Brasileiro de Geologia, Porto Alegre. Anais do São Paulo: Sociedade Brasileira de Geologia, v. 1, p. 41-65.</ref>, Smith et al. (1978), Adams (1980), Fulfaro et al.<ref name=Fulfaro_1980>Fulfaro, V. J., E. Gama Junior, and P. C. Soares, 1980. Revisão estratigráfica da Bacia do Paraná. São Paulo: Paulipetro, 167 p.</ref> and Zalán et al.<ref name=Zalan_1990> Zalán, P. V., S. Wolff, M. A. M. Astolfi, I. S. Vieira, J. C. J. Conceição, V. T. Appi, E. V. Santos Neto, J. R. Cerqueira, and A. Marques, 1990, [http://archives.datapages.com/data/specpubs/basinar3/data/a134/a134/0001/0650/0681.htm The Paraná Basin, Brazil], ''in'' M. W. Leighton, D. R. Kolata, D. F. Oltz, and J. J. Eidel, eds,. Interior cratonic basins: [http://store.aapg.org/detail.aspx?id=1182 AAPG Memoir 51], p. 681-708.</ref>.

According to Milani et al,<ref name=Milani_2007b>Milani, E.J., Melo, J.H.G., Souza, P.A., Fernandes, L.A., França, A.B., 2007b. Bacia do Paraná. Boletim de Geociências da Petrobras, Rio de Janeiro, 15(2): 265–287.</ref> the Paraná Basin is a large sedimentary region of South America, which includes territorial portions of southern Brazil, eastern Paraguay, northeastern Argentina and northern Uruguay, totaling an area which is close to 1.5 million square kilometers ([[:file:Parana_1.jpg|Figure 1]]). The basin has an oval shape with the major axis N-S, its current boundary is defined by erosive limits related largely to the [[Mesozoic]]-[[Cenozoic]] tectonic history of the continent. Numerous researchers have been involved in the investigation of this basin, some of these works were of particular relevance as a regional summaries, highlighting the White report<ref name=White_1908>White, I. C., 1908, Relatório sobre as coal measures e rochas associadas ao sul do Brasil. Rio de Janeiro: Comissão das Minas de Carvão de Pedra do Brasil, 300 p.</ref>, the works of Sanford and Lange,<ref name=Sanford_et_Lange_1960>Sanford, R. M. and F. W. Lange, 1960, [http://archives.datapages.com/data/bulletns/1957-60/data/pg/0044/0008/1300/1316.htm Basin-study approach to oil evaluation of Paraná miogeosyncline, south Brazil]: AAPG Bulletin, vol. 44, p. 1316-1370</ref> Northfleet et al.,<ref name=Northfleet_1969>Northfleet, A. A., R. A. Medeiros, and H. Mühlmann, 1969, Reavaliação dos dados geológicos da Bacia do Paraná. Boletim Técnico da Petrobras, Rio de Janeiro, v.12, n.3, p. 291-346</ref>, Schneider et al.<ref name=Schneider_1974>Scneider, R. L.; H. Mühlmann, E. Tommasi, R. A. Medeiros, R. F. Daemon, and A. A. Noguierra, 1974, Revisão estratigráfica da Bacia do Paraná. In: Congresso Brasileiro de Geologia, Porto Alegre. Anais do São Paulo: Sociedade Brasileira de Geologia, v. 1, p. 41-65.</ref>, Smith et al. (1978), Adams (1980), Fulfaro et al.<ref name=Fulfaro_1980>Fulfaro, V. J., E. Gama Junior, and P. C. Soares, 1980. Revisão estratigráfica da Bacia do Paraná. São Paulo: Paulipetro, 167 p.</ref> and Zalán et al.<ref name=Zalan_1990> Zalán, P. V., S. Wolff, M. A. M. Astolfi, I. S. Vieira, J. C. J. Conceição, V. T. Appi, E. V. Santos Neto, J. R. Cerqueira, and A. Marques, 1990, [http://archives.datapages.com/data/specpubs/basinar3/data/a134/a134/0001/0650/0681.htm The Paraná Basin, Brazil], ''in'' M. W. Leighton, D. R. Kolata, D. F. Oltz, and J. J. Eidel, eds,. Interior cratonic basins: [http://store.aapg.org/detail.aspx?id=1182 AAPG Memoir 51], p. 681-708.</ref>.