Changes

[[file:Parana-Etendeka_1.jpg|thumb|300px|center|{{figure number|1}}Location of the Parana-Etendeka CBP (modified from Jerram.<ref name=Jerram_2002>Jerram, D. A., 2002, Volcanology and facies architecture of flood basalts, ''in'' M. A. Menzies, S. L. Klemperer, C. J. Ebinger, and J. Baker, eds., Magmatic rifted margins: Geological Society of America Special Paper 362, pp. 119–132.</ref>]]

[[file:Parana-Etendeka_1.jpg|thumb|300px|center|{{figure number|1}}Location of the Parana-Etendeka CBP (modified from Jerram.<ref name=Jerram_2002>Jerram, D. A., 2002, Volcanology and facies architecture of flood basalts, ''in'' M. A. Menzies, S. L. Klemperer, C. J. Ebinger, and J. Baker, eds., Magmatic rifted margins: Geological Society of America Special Paper 362, pp. 119–132.</ref>]]

The Parana Continental Basaltic Province covers an area of 917,000 km² and has a volume of 450,000 km³.<ref name=Frank_2009>Frank, H. T., M. E. B. Gomes, and M. L. L. Formoso, 2009, Review of the areal extent and the volume of the Serra Geral Formation, Parana Basin, South America: Pesquisa em Geociências, v. 36, p. 49–57.</ref> It is composed mostly (90% of volume) by basaltic and andesitic basalts rocks with a tholeiitic affinity. Acidic rocks occur locally in the upper volcanic pile. Chemically the basalts were divided in two groups based in the TiO2 contents: The first group occurs dominantly in southern areas and has TiO2 lower than 2 wt.%, the second group has high TiO2 (>2%) and is dominant in the northern portion of the Parana Basin.<ref name=Bellieni_1984>Bellieni, G., Comin-Chiaramonti, P., Marques, L.S., Melfi, A.J., Picirillo, E.M., Nardy, A.J.R., Roisenberg, A., 1984. High- and Low Ti flood basalts from the Paran_a plateau (Brazil): petrogenetic and geochemical aspects bearing on their mantle origin. Neues Jahrb. für Mineral. Abh. 150, 272e306.</ref><ref name=Mantovani_1985>Mantovani, M.S.M., Marques, L.S., De Sousa, M.A., Civetta, L., Atalla, L., Innocenti, F., 1985. Trace element and strontium isotope constraints on the origin and evolution of Paran_a continental flood basalts of Santa Catarina State, southern Brazil. J. Petrol. 26, 187e209.</ref> These two groups of basaltic rocks were sub-divided in six magma types<ref name=Peate_1992>Peate, D.W., Hawkeswort, C.J., Mantovani, M.S.M., 1992. Chemical stratigraphy of the Paran_a lavas (South America): classification of magma types and their spatial distribution. Bull. Volcanol. 55, 119e139.</ref>:  Gramado, Esmeralda and Urubici (Ti/Y<300) in the south, and Pitanga, Paranapanema and Ribeira (Ti/Y>300) in the northern magmas.  

The Parana Continental Basaltic Province covers an area of 917,000 km² and has a volume of 450,000 km³.<ref name=Frank_2009>Frank, H. T., M. E. B. Gomes, and M. L. L. Formoso, 2009, Review of the areal extent and the volume of the Serra Geral Formation, Parana Basin, South America: Pesquisa em Geociências, v. 36, p. 49–57.</ref> It is composed mostly (90% of volume) by basaltic and andesitic basalts rocks with a tholeiitic affinity. Acidic rocks occur locally in the upper volcanic pile. Chemically the basalts were divided in two groups based in the TiO2 contents: The first group occurs dominantly in southern areas and has TiO2 lower than 2 wt.%, the second group has high TiO2 (>2%) and is dominant in the northern portion of the Parana Basin.<ref name=Bellieni_1984>Bellieni, G., P. Comin-Chiaramonti, L. S. Marques, A. J. Melfi, E. M. Picirillo, A. J. R. Nardy, and A. Roisenberg,1984, High- and Low Ti flood basalts from the Paran_a plateau (Brazil): petrogenetic and geochemical aspects bearing on their mantle origin. Neues Jahrb. für Mineral. Abh. 150, 272e306.</ref><ref name=Mantovani_1985>Mantovani, M.S.M., Marques, L.S., De Sousa, M.A., Civetta, L., Atalla, L., Innocenti, F., 1985. Trace element and strontium isotope constraints on the origin and evolution of Paran_a continental flood basalts of Santa Catarina State, southern Brazil. J. Petrol. 26, 187e209.</ref> These two groups of basaltic rocks were sub-divided in six magma types<ref name=Peate_1992>Peate, D.W., Hawkeswort, C.J., Mantovani, M.S.M., 1992. Chemical stratigraphy of the Paran_a lavas (South America): classification of magma types and their spatial distribution. Bull. Volcanol. 55, 119e139.</ref>:  Gramado, Esmeralda and Urubici (Ti/Y<300) in the south, and Pitanga, Paranapanema and Ribeira (Ti/Y>300) in the northern magmas.  

[[file:Parana-Etendeka_2.jpg|300px|thumb|Figure 2. Distribution of magmatic and sedimentary rocks of the Parana Basin.<ref name=Rossetti_2014 />.]]

[[file:Parana-Etendeka_2.jpg|300px|thumb|Figure 2. Distribution of magmatic and sedimentary rocks of the Parana Basin.<ref name=Rossetti_2014 />.]]