Changes

# Chapeco Type, porphyritic trachytes with high-TiO2, Ba, P, Zr and Sr. Present in the north and middle portions of the basin and is sub-divided in 3 sub-groups: Ourinhos, Guarapuava<ref name=Peate_1997 /> and Tamanara.<ref name=Nardy_2008 />

# Chapeco Type, porphyritic trachytes with high-TiO2, Ba, P, Zr and Sr. Present in the north and middle portions of the basin and is sub-divided in 3 sub-groups: Ourinhos, Guarapuava<ref name=Peate_1997 /> and Tamanara.<ref name=Nardy_2008 />

The age of magmatism in the Serra Geral Formation is Early Cretaceous. The volcanic rocks are slightly older in the south portion ranging from 131,4 ± 1,6 to 132,9 Ma, becoming younger in middle (129,9 ± 0,1 Ma ) and north (131,9 ± 0,9 Ma ).<ref name=Renne_1992>Renne, P. R., Ernesto, M., Pacca, I.G., Coe, R.S., Glen, J.M., Prevot, M. & Perrin M. 1992. The age of the Paraná Flood Volcanism, rifting of Gondwanaland, and the Jurassic-Cretaceous boundary. Science, 258: 975- 979</ref> The duration of the main phase of the volcanism was <1.2 My<ref name=Renne_1992>Renne, P.R., Glen, J.M., Milner, S.C., Duncan, A.R., 1996. Age of Etendeka flood volcanism and associated intrusions in southwestern Africa. Geology 24, 659e662.</ref> (Continental Basaltic Provinces are known to display a variety of lava flow morphologies).  

The age of magmatism in the Serra Geral Formation is Early Cretaceous. The volcanic rocks are slightly older in the south portion ranging from 131,4 ± 1,6 to 132,9 Ma, becoming younger in middle (129,9 ± 0,1 Ma ) and north (131,9 ± 0,9 Ma ).<ref name=Renne_1992>Renne, P. R., Ernesto, M., Pacca, I.G., Coe, R.S., Glen, J.M., Prevot, M. & Perrin M. 1992. The age of the Paraná Flood Volcanism, rifting of Gondwanaland, and the Jurassic-Cretaceous boundary. Science, 258: 975- 979</ref> The duration of the main phase of the volcanism was <1.2 My<ref name=Renne_1992 /> (Continental Basaltic Provinces are known to display a variety of lava flow morphologies).  

Furthermore, studies based in the morphology of different magma types and the facies architecture<ref name=Lima_2012>Lima, E.F., Waichel, B.L., Rossetti, L.M.M., Viana, A.R., Scherer, C.M., Bueno, G.V., Dutra, G., 2012. Morphological and petrographic patterns of the pahoehoe and 0a0_a flows of the Serra Geral Formation in the Torres Syncline.</ref><ref name=Waichel_2012>Waichel, B.L., Lima, E.F., Viana, A.R., Scherer, C.M., Bueno, G.V., Dutra, G., 2012. Stratigraphy and volcanic facies architecture of the Torres Syncline, Southern Brazil, and its role in understanding the Paran_a-Etendeka Continental Flood Basalt Province. J. Volcanol. Geotherm. Res. 216, 74e82.</ref><ref name=Rossetti_2014>Rossetti, L.M., Lima, E.F., Waichel, B.L., Scherer, C.M., Barreto, C.J., 2014. Stratigraphical framework of basaltic lavas in Torres Syncline Main Valley, Southern Brazil. Journal of South American Earth Sciences 56 (2014) 409-421 </ref> has helped the understanding the paleotopography, emplacement and volumetric flow rate of Parana Etendeka volcanism.

Furthermore, studies based in the morphology of different magma types and the facies architecture<ref name=Lima_2012>Lima, E.F., Waichel, B.L., Rossetti, L.M.M., Viana, A.R., Scherer, C.M., Bueno, G.V., Dutra, G., 2012. Morphological and petrographic patterns of the pahoehoe and 0a0_a flows of the Serra Geral Formation in the Torres Syncline.</ref><ref name=Waichel_2012>Waichel, B.L., Lima, E.F., Viana, A.R., Scherer, C.M., Bueno, G.V., Dutra, G., 2012. Stratigraphy and volcanic facies architecture of the Torres Syncline, Southern Brazil, and its role in understanding the Paran_a-Etendeka Continental Flood Basalt Province. J. Volcanol. Geotherm. Res. 216, 74e82.</ref><ref name=Rossetti_2014>Rossetti, L.M., Lima, E.F., Waichel, B.L., Scherer, C.M., Barreto, C.J., 2014. Stratigraphical framework of basaltic lavas in Torres Syncline Main Valley, Southern Brazil. Journal of South American Earth Sciences 56 (2014) 409-421 </ref> has helped the understanding the paleotopography, emplacement and volumetric flow rate of Parana Etendeka volcanism.