Figure 1:
Southern portion of the Gondwana continent showing the main cratonic areas and of the Dom Feliciano belt and related belts of Africa. Cratons: A = Amazon, C = Congo, K = Kalahari, LP = Rio de la Plata, PT = Paraná, SF = São Francisco. Brasiliano-Pan-African Belts: B = Brasilia belt, DF = Dom Feliciano belt, G = Gariep belt, R = Ribeira belt, K = Kaoko belt, SG = São Gabriel Terrane. Modified from Rapela et al. (2011Rapela C.W. ,Fanning C.M., Casquet C., Pankhurst R.J., Spalletti L., Poiré D., Baldo E.G. 2011. The Rio de la Plata craton and the adjoining Pan-African/brasiliano terranes: Their origins and incorporation into south-west Gondwana. Gondwana Research , 20:673-690.).
Figure 2:
Distribution of the main lithotectonic units, events and tectonic processes in each terrane of the Dom Feliciano Belt and Taquarembó Terrane based on geochronological data, composition of the magmas, type of basin and orogenic events. The horizontal bars present the detrital zircon data in metasedimentary complexes. 1 - Unpublished data, 2 - Hartmann et al. (2004Hartmann L.A., Philipp R.P., Liu D., Wan Y., Wang Y., Santos J.O.S., Vasconcellos M.A.Z. 2004. Paleoproterozoic magmatic provenance of detrital zircons, Porongos complex quartzites, southern Brazilian shield. Internation Geology Review 46:127-157.), 3 - Gruber et al. (2011Gruber L., Porcher C.C., Lens C., Fernandes L.A.D. 2011. Proveniência dos metassedimentos das seqüências Arroio Areião, Cerro Cambará e Quartzo Milonitos no Complexo Metamórfico Porongos, Santana da Boa Vista, RS. Pesquisas em Geociências 38(3):205-223.), 4 - Pertile et al. (2015aPertille J., Hartmann L.A., Philipp R.P. 2015a. Zircon U-Pb age constraints on the Paleoproterozoic sedimentary basement of the Ediacaran Porongos Group, Sul-Riograndense Shielf, southern Brazil: Journal of South American Earth Sciences 63:334-345.), 5 - Pertile et al. (2015bPertille J., Hartmann L.A., Philipp R.P., Petry T.S., Lana C.C. 2015b. Origin of the Ediacaran Porongos Group, Dom Feliciano Belt, southern Brazilian Shield, with emphasis on whole rock and detrital zircon geochemistry and U-Pb, Lu-Hf isotopes. Journal of South American Earth Sciences , 64:69-93.), 6 - Lena et al. (2014Lena L.O.F., Pimentel M.M., Philipp R.P., Armstrong R., Sato K. 2014. The evolution of the Neoproterozoic São Gabriel juvenile terrane, southern Brazil based on high spatial resolution U-Pb ages and 18O data from detrital zircons. Precambrian Research , 247:126-138.), 7 - Lopes et al. (2015Lopes C.G., Pimentel M.M., Philipp R.P., Gruber L., Armstrong R., Junges S.L. 2015. Provenance of the Passo Feio Complex, São Gabriel Terrane, Dom Feliciano Belt, southern Brazil, implications for the tectonic setting of deposition, age of the São Gabriel Arc and origin of Paleoarchean detrital zircons (3.3-3.63 Ga). Journal of South American Earth Sciences , 58:9-17.) and 8 - Vedana et al. (2016Vedana L.A., Philipp R.P., Basei M.A.S. 2016. Geochemistry and provenance of the Pontas do Salso Complex, São Gabriel Terrane, Dom Feliciano Belt, southernmost Brazil. International Geology Review In press). Camaquã Basin legend: MG - Maricá Group, BJG/HIL - Bom Jardim Group/Hilário Andesite, SBG/AV - Santa Barbara Group/Acampamento Velho Rhyolite and GG/RV - Guaritas Group/Rodeio Velho Andesite.
Figure 3:
Geological map of the southern Brazilian and Uruguay shields (modified after Oyhantçabal et al. 2011Oyhantçabal P., Siegesmund S., Wemmer K. 2011. The Rio de la Plata Craton, a review of units, boundaries, ages and isotopic signature. International Journal of Earth Sciences 100:201-220., Rapela et al. 2011Rapela C.W. ,Fanning C.M., Casquet C., Pankhurst R.J., Spalletti L., Poiré D., Baldo E.G. 2011. The Rio de la Plata craton and the adjoining Pan-African/brasiliano terranes: Their origins and incorporation into south-west Gondwana. Gondwana Research , 20:673-690.). Ductile Shear Zones: 1 - Itajai-Perimbó, 2 - Major Gercino, 3 - Caçapava do Sul, 4 - Dorsal de Canguçu, 5 - Passo do Marinheiro, 6 - Ibaré, 7 - Sarandí del Yí, 8 - Sierra Ballena, 9 - Cerro Amaro, 10 - Arroio Grande.
Figure 4:
Geological map of the Taquarembó Terrane (from Philipp et al., 2016aPhilipp R.P., Bom F.M., Pimentel M.M., Junges S.L., Zvirtes G. 2016a. SHRIMP U-Pb age and high temperature conditions of the collisional metamorphism in the Várzea do Capivarita Complex: implications for the origin of Pelotas Batholith, Dom Feliciano Belt, southern Brazil. Journal of South American Earth Sciences 66:196-207.).
Figure 5:
Geological map of the São Gabriel Terrane.
Figure 6:
Geological map of the Cerro Mantiqueira region, south of Lavras do Sul (from Lusa et al. 2016Lusa M., Philipp R.P., Zvirtes G. 2016. The Neoproterozoic São Gabriel orogeny, Dom Feliciano Belt, southernmost Brazil: the intra-oceanic Passinho arc and the active continental margin of the São Gabriel-Vila Nova Arc, Lavras do Sul, southernmost Brazil. Journal of South American Earth Science , submitted.).
Figure 7:
Geological map of the Vila Nova region (modified from Hartmann et al. 2011Hartmann L.A., Philipp R.P., Santos J.O.S., McNaughton N.J. 2011. Time frame of 753-680 Ma juvenile accretion during the São Gabriel orogeny, southern Brazil. Gondwana Research 19:84-99.).
Figure 8:
Geological map of the Santana da Boa Vista region (Philipp et al. 2016bPhilipp R.P., Lusa M., Chemale Jr. F., Archanjo C., Nardi L.V.S. 2016b. The Paleoproterozoic (Siderian to Rhyacian) continental-arc magmatism of the Encantadas Complex, southernmost Brazil and his significance for evolution of the Rio de la Plata Craton. Journal of South American Earth Sciences , submitted.).
Figure 9:
Geological map of Hulha Negra region, south portion of Tijucas Terrane (Camozzato et al. 2013Camozzato E., Philipp R.P., Chemale Jr. F. 2013. Evolução Tectônica e Geocronologia U-Pb em zircão da terminação sul do Terreno Tijucas (RS, Brasil). VII Congreso Uruguayo de Geología, Montevideo, Resúmenes Extendidos , p. 7.).
Figure 10:
Geotectonic simplified map of the Pelotas Batholith (modified from Philipp et al. 2016aPhilipp R.P., Bom F.M., Pimentel M.M., Junges S.L., Zvirtes G. 2016a. SHRIMP U-Pb age and high temperature conditions of the collisional metamorphism in the Várzea do Capivarita Complex: implications for the origin of Pelotas Batholith, Dom Feliciano Belt, southern Brazil. Journal of South American Earth Sciences 66:196-207.).
Figure 11:
(A) Southern portion of Gondwana showing the main cratonic areas and the location of the Dom Feliciano belt and related belts of Africa. (B) Detail of the compositon of the Rio de La Plata continental plate, highlighting the archean nucleus. (C) Opening of the Charrua Ocean between the Rio de La Plata Craton (old nucleus) and the Nico Perez Microplate (paleoproterozoic mobile belt).