Figure 1:
The Neoproterozoic basins of South America (modified from Misi et al. 2007Misi A., Kaufman A.J., Veizer J., Powis K., Azmy K., Boggiani P.C., Gaucher C., Teixeira J.B.G., Sanches A.L., Iyer S.S.S. 2007. Chemostratigraphic correlation of Neoproterozoic successions in South America. Chemical Geology , 237:143-167.).
Figure 2:
Simplified geological map of the Paraguay Belt showing the areas of outcrop of the Araras, Cuiabá, Corumbá, Itapucumi and the Murciélago groups (modified from Boggiani et al. 2010Boggiani P.C., Gaucher C., Sial A.N., Babinski M., Simon C.M., Riccomini C., Ferreira V.P., Fairchild T.R. 2010. Chemostratigraphy of the Tamengo Formation (Corumbá Group, Brazil): A contribution to the calibration of the Ediacaran carbon-isotope curve. Precambrian Research , 182(4):382-401.).
Figure 3:
Stratigraphic section and variations of δ13C and 87Sr/86Sr for the Araras Group (data from Nogueira et al. 2003Nogueira A.C.R., Riccomini C., Sial A.N., Moura C.A.V., Fairchild T.R. 2003. Soft-sediment deformation at the base of the Neoproterozoic Puga cap carbonate (southwestern Amazon Craton, Brazil): confirmation of rapid icehouse to greenhouse transition in snowball Earth. Geology , 31(7):613-616., 2007Nogueira A.C.R., Riccomini C., Sial A.N., Moura C.A.V., Trindade R.I.F., Fairchild T.R. 2007. Carbon and strontium isotope fluctuations and paleoceanographic changes in the late Neoproterozoic Araras carbonate platform, southern Amazon craton, Brazil. Chemical Geology , 237:168-190.; Alvarenga et al. 2004Alvarenga C.J.S., Santos R.V., Dantas E.L. 2004. C-O-Sr isotopic stratigraphy of cap carbonates overlying Marinoan-age glacial diamictites in the Paraguay Belt, Brazil. Precambrian Research , 131:1-21., 2008Alvarenga C.J.S., Dardenne M.A., Santos R.V., Brod E.R., Gioia S.M.C.L., Sial A.N., Dantas E.L., Ferreira V.P. 2008. Isotope stratigraphy of Neoproterozoic cap carbonates in the Araras Group, Brazil. Gondwana Research , 13:469-479.; Font et al. 2006Font E., Nédélec A., Trindade R.I.F., Macouin M., Charrière A. 2006. Chemostratigraphy of the Neoproterozoic Mirassol d'Oeste cap dolostone (Mato Grosso, Brazil): an alternative model for Marinoan cap dolostone formation. Earth and Planetary Science Letters , 250:89-103., Figueiredo 2006Figueiredo M.F. 2006. Quimioestratigrafia das rochas ediacaranas no extremo norte da Faixa Paraguai, Mato Grosso . Dissertação de Mestrado, Instituto de Geociências, Universidade de São Paulo, Brazil., Souza 2015Souza, S. C. R. 2015. Detalhamento Estratigráfico das Unidades superiores do Neoproterozóico da Faixa Paraguai. MSc thesis, Instituto de Geociências, Universidade de Brasília, Brazil.).
Figure 4:
Stratigraphic column of the Corumbá Group, as originally defined by Almeida (1965Almeida F.F.M. 1965. Geologia da Serra da Bodoquena (Mato Grosso), Brasil . Boletim da Divisão de Geologia e Mineralogia, DNPM, Rio de Janeiro, 216, 96 pp.), with modifications from Boggiani (1998Boggiani P.C. 1998. Análise Estratigráfica da Bacia Corumbá (Neoproterozóico), Mato Grosso do Sul . Tese de Doutorado, Instituto de Geociências, Universidade de São Paulo, São Paulo, 181p.).
Figure 5:
Stratigraphic column and high-resolution chemostratigraphic C and O-isotope data of the Tamengo Formation, Corumbá Group, in the eastern part of Laginha Mine. The contact between the basal breccias and overlying carbonates is faulted and the lower Tamengo Formation is missing (modified from Boggiani et al. 2010Boggiani P.C., Gaucher C., Sial A.N., Babinski M., Simon C.M., Riccomini C., Ferreira V.P., Fairchild T.R. 2010. Chemostratigraphy of the Tamengo Formation (Corumbá Group, Brazil): A contribution to the calibration of the Ediacaran carbon-isotope curve. Precambrian Research , 182(4):382-401.).
Figure 6:
Summary geological map of the area of occurrence of the Apa Block, Itapucumi and Corumbá groups.
Figure 7:
Lithostratigraphy of the Itapucumi Group in the western portion of theVallemi Belt. Modified from Warren 2011Warren L.V., Fairchild T.R., Gaucher C., Boggiani P.C., Poiré D.G., Anelli L.E., Inchausti J.C.G. 2011.Corumbella and in situ Cloudina in association with thrombolites in the Ediacaran Itapucumi Group, Paraguay: Terra Nova 23: 382-389.).
Figure 8:
C-isotope chemostratigraphy for the Itapucumi Group (modified from Warren 2011Warren L.V. 2011. Tectônica e sedimentação do Grupo Itapucumi (Neoproterozóico, Paraguai Setentrional. Doctoral Thesis, Institute of Geosciences, University of São Paulo, São Paulo, 215 p.)
Figure 9:
C-isotope chemostratigraphic correlation of the Ediacaran units of the Itapucumi Group with wellknown Ediacaran groups worldwide (Namibia, Oman, China, Argentina, Uruguay, Paraguay and Brazil). Modified from Warren et al. 2011Warren L.V., Fairchild T.R., Gaucher C., Boggiani P.C., Poiré D.G., Anelli L.E., Inchausti J.C.G. 2011.Corumbella and in situ Cloudina in association with thrombolites in the Ediacaran Itapucumi Group, Paraguay: Terra Nova 23: 382-389..
Figure 10:
C-isotope chemostratigraphy for carbonates of the Murciélago Group, Bolívia.
Figure 11:
Simplified geological map of the Sao Francisco craton showing the Neoproterozoic cover and surrounding belts (modified from Sial et al. 2010Sial A.N., Karhu J., Ferreira V.P. 2010a. Insights from Isotope Stratigraphy. Preface to the Special Issue on Precambrian Isotope Stratigraphy. Precambrian Research , 182(4): v-viii.).
Figure 12:
C-isotope chemostratigraphy for the Bambui (a) and Una (b) carbonate-dominated successions (modified from Santos et al. 2000Santos R.V., Alvarenga C.J.S., Dardenne M.A., Sial A.N., Ferreira V.P. 2000. Carbon and oxygen isotopes across Meso-Neoproterozoic limestones from Central Brazil: Bambui and Paranoá Groups. Precambrian Research , 104:107-122.; Misi et al. 2011Misi A., Kaufman A.J., Azmy K., Dardenne M.A., Sial A.N., Oliveira T.F. 2011. Neoproterozoic successions of the São Francisco Craton, Brazil: The Bambuí, Una, Vazante and Vaza Barris/Miaba groups and their glaciogenic deposits. Arnaud E., Halverson G. P., Shields-Zhou G. (eds.). The Geological Record of Neoproterozoic Glaciations . Memoir 36, Chapter 48, Geological Society of London, London, 509-522.)
Figure 13:
Correlation between the Vazante Group and Vaza Barris/Miaba groups (passive margin basins) and Bambuí, Una, Vazante, Miaba/Vaza Barris (intracratonic basins). Modifiedd from Misi et al. (2011Misi A., Kaufman A.J., Azmy K., Dardenne M.A., Sial A.N., Oliveira T.F. 2011. Neoproterozoic successions of the São Francisco Craton, Brazil: The Bambuí, Una, Vazante and Vaza Barris/Miaba groups and their glaciogenic deposits. Arnaud E., Halverson G. P., Shields-Zhou G. (eds.). The Geological Record of Neoproterozoic Glaciations . Memoir 36, Chapter 48, Geological Society of London, London, 509-522.).
Figure 14:
87Sr/
86Sr ratios for carbonates from the Bambuí and Una groups plotted against age on the
Fig. 4 of
Halverson et al. (2010Halverson G.P., Wade B.P., Hurtgen M.T., Barovich K.M. 2010. Neoproterozoic chemostratigraphy. Precambrian Research , 182(4):337-350.)
Figure 15:
Simplified regional geological map of the Brasília Belt showing the distribution of the Vazante Group (after Marini et al. 1984, Dardenne 2000Dardenne M.A. 2000. The Brasilia fold belt. Cordani, U.G., Milani, E.J., Thomaz Filho, A., Campos, D.A. (eds.) Tectonic Evolution of South America. Rio de Janeiro: 31st International Geological Congress, pp. 231-263., Pimentel et al. 2000Pimentel M.M., Rodrigues J.B., Emilia S., Della Giustina M., Junges S.L., Matteini M. 2011. The tectonic evolution of the Neoproterozoic Brasília Belt, central Brazil, based on SHRIMP and LA-ICPMS U-Pb sedimentary provenance data: A review. Journal of South American Earth Sciences , 31(4):345-357.; Valeriano et al. 2004; modified from Misi et al. 2011Misi A., Kaufman A.J., Azmy K., Dardenne M.A., Sial A.N., Oliveira T.F. 2011. Neoproterozoic successions of the São Francisco Craton, Brazil: The Bambuí, Una, Vazante and Vaza Barris/Miaba groups and their glaciogenic deposits. Arnaud E., Halverson G. P., Shields-Zhou G. (eds.). The Geological Record of Neoproterozoic Glaciations . Memoir 36, Chapter 48, Geological Society of London, London, 509-522.).
Figure 16:
Simplified geological map of the Rio Pardo Basin, eastern São Francisco Craton (modified from Pedreira 1999Pedreira A.J. 1999. Evolução sedimentar e tectônica da Bacia metassedimentar do Rio Pardo: uma síntese. Revista Brasileira de Geociências , 29(3):339-344.; Sial et al. 2010Sial A.N., Karhu J., Ferreira V.P. 2010a. Insights from Isotope Stratigraphy. Preface to the Special Issue on Precambrian Isotope Stratigraphy. Precambrian Research , 182(4): v-viii.).
Figure 17:
C- and O-isotope chemostratigraphy for sucessions at the Rio Pardo Basin (A) and Rio Preto Belt (B).
Figure 18:
Cross-section for the Rio Preto belt (Egydio-Silva, 1987Egydio-Silva M. 1987. Sistema de dobramentos Rio Preto e suas relações com o Craton do São Francisco . Tese de Doutorado, Instituto de Geociências, Universidade de São Paulo, 141 pp.; Sial et al. 2010Sial A.N., Karhu J., Ferreira V.P. 2010a. Insights from Isotope Stratigraphy. Preface to the Special Issue on Precambrian Isotope Stratigraphy. Precambrian Research , 182(4): v-viii.).
Figure 19:
Simplified geological map of the eastern Vaza Barris Domain, Sergipano Belt (modified from D'el Rey Silva, 1999D'el Rey Silva L.J.H. 1999. Basin infilling in the southern-central part of the Sergipano Belt (NE Brazil) and implications for the evolution of Pan-African/ Brasiliano cratons and Neoproterozoic sedimentary cover. Journal of South Amerian Earth Sciences , 12:453-470.; Sial et al. 2010Sial A.N., Karhu J., Ferreira V.P. 2010a. Insights from Isotope Stratigraphy. Preface to the Special Issue on Precambrian Isotope Stratigraphy. Precambrian Research , 182(4): v-viii.), with the indication of sampled stratigraphic sections in Sial et al. (2010Sial A.N., Karhu J., Ferreira V.P. 2010a. Insights from Isotope Stratigraphy. Preface to the Special Issue on Precambrian Isotope Stratigraphy. Precambrian Research , 182(4): v-viii.).
Figure 20:
Litho- and composite δ13C curve and 87Sr/86Sr ratios for carbonates of the Jacoca (Estância-Miaba Group) and Olhos D'Agua formations (Vaza Barris Group). The variation of Sr isotopes also shown in this composite section (modified from Sial et al. 2010Sial A.N., Karhu J., Ferreira V.P. 2010a. Insights from Isotope Stratigraphy. Preface to the Special Issue on Precambrian Isotope Stratigraphy. Precambrian Research , 182(4): v-viii.).
Figure 21:
Simplified geological map of the Seridó Belt (after Jardim de Sá, 1994Jardim de Sá E.F. 1994. A faixa Seridó (Província Borborema, NE do Brasil) e o seu significado geodinâmico na cadeia Brasiliana/Pan-africana . Tese de Doutorado, Instituto de Geociências, Universidade de Brasilia, 804 p.; Angelim et al. 2006Angelim L.A.A., Medeiros V.C., Nesi J.R. 2006. Mapa Geológico do Estado do Rio Grande do Norte Programa Geologia do Brasil. Projeto Mapa Geológico e de Recursos Minerais do Estado do Rio Grande do Norte. Recife: CPRM/FAPERN, 2006.; modified from Sial et al. 2015Sial A.N., Campos M.S., Gaucher C., Frei R., Ferreira V.P., Nascimento R.C., Pimentel M.M., Pereira N.S., Rodler A. 2015a. Algoma-type Neoproterozoic BIFs and related marbles in the Seridó Belt (NE Brazil): REE, C, O, Cr and Sr isotope evidence. Journal of South American Earth Sciences 61, 33-52.). Black stars represent locations of BIFs (Bonito iron Mine, Serra da Formiga and Riacho Fundo).
Figure 22:
(A) C- and O-isotope chemostratigraphic profiles for marbles of the Jucurutu Formation overlying BIFs at the Bonito iron Mine (drill holes 34 and 78; profile BON corresponds to a section at about the hinge of the antiform of the Bonito iron Mine); (B) C- and O-isotope chemostratigraphic profiles for marbles of the Seridó Formation (São Mamede and Cruzeiro da Maniçoba localities). Modified from Sial et al. 2015Sial A.N., Campos M.S., Gaucher C., Frei R., Ferreira V.P., Nascimento R.C., Pimentel M.M., Pereira N.S., Rodler A. 2015a. Algoma-type Neoproterozoic BIFs and related marbles in the Seridó Belt (NE Brazil): REE, C, O, Cr and Sr isotope evidence. Journal of South American Earth Sciences 61, 33-52..
Figure 23:
Geological map showing the Ubajara Group and area of outcrop of the Frecheirinha Formation (Araticum Section). Modified from Chiglino et al. (2015Chiglino L., Gaucher C., Sial A.N., Ferreira V.P. 2015. Acritarchs of the Ediacaran Frecheirinha Formation, Ubajara Group, Northeastern Brazil. Anais da Academia Brasileira de Ciências , 87(2):635-649.).
Figure 24:
Lithostratigraphy of the Ubajara and Jaibaras groups, showing stratigraphic range of fossils occurring in these units. (A) δ13C and 87Sr/86Sr chemostratigraphy of the Frecheirinha Formation (Sial et al. 2003Sial A.N., Ferreira V.P., Almeida A.R., Moura C.V.A. 2003. C-, O- and Sr isotope composition and age of the carbonates of the Frecheirinha Formation, NW Ceará, Northeastern Brazil. IX Congresso Brasileiro de Geoquímica. Belém, Pará. Resumos Expandidos, 410-411., Chiglino 2013Chiglino L. 2013. Quimiestratigrafía e Biostratigrafía da Formação Frecheirinha (Grupo Ubajara), Nordeste do Brasil. Tese de doutorado, Universidade Federal de Pernambuco, Recife, 101 pp.); (B) Detail of the stratigraphic interval sampled (Chiglino et al. 2015Chiglino L., Gaucher C., Sial A.N., Ferreira V.P. 2015. Acritarchs of the Ediacaran Frecheirinha Formation, Ubajara Group, Northeastern Brazil. Anais da Academia Brasileira de Ciências , 87(2):635-649.).
Figure 25:
Simplified map of the eastern Río de la Plata Craton, showing outcrop areas of the Arroyo del Soldado Group (Nico Pérez Terrane), Piedras de Afilar Formation and Sierras Bayas Group (Tandilia). Modified from Gaucher et al. (2005Gaucher C., Poiré D.G., Gómez Peral L., Chiglino L. 2005. Litoestratigrafía, bioestratigrafía y correlaciones de las sucesiones sedimentarias del Neoproterozoico-Cámbrico del Cratón del Río de la Plata (Uruguay y Argentina). Latin American Journal of Sedimentology and Basin Analysis , 12(2):145-160., 2008aGaucher C., Finney S.C., Poiré D.G., Valencia V.A., Grove M., Blanco G., Pamoukaghlián K., Gómez Peral L. 2008a. Detrital zircon ages of Neoproterozoic sedimentary successions in Uruguay and Argentina: insights into the geological evolution of the Río de la Plata Craton. Precambrian Research , 167:150170.). ICR: Isla Cristalina de Rivera; CSZ: Colonia Shear Zone; SYSZ: Sarandí del Yí Shear Zone; SBSZ: Sierra Ballena Shear Zone.
Figure 26:
Stratigraphic column of the Polanco Formation at Calera de Recalde Syncline, showing ε13C, 87Sr/86Sr, ε53Cr and εNd data. Modified from Gaucher et al. (2004Gaucher C., Sial A.N., Blanco G., Sprechmann P. 2004. Chemostratigraphy of the lower Arroyo del Soldado Group (Vendian, Uruguay) and palaeoclimatic implications. Gondwana Research , 7(3):715-730., 2009bGaucher C., Sial A.N., Poiré D., Gómez-Peral L., Ferreira V.P., Pimentel M.M. 2009b. Neoproterozoic-Cambrian evolution of the Río de la Plata Palaeocontinent. Chemostratigraphy. Gaucher C., Sial A.N., Halverson G.P., Frimmel H.E. (eds.). Neoproterozoic-Cambrian tectonics, global change and evolution: a focus on southwest Gondwana . Developments in Precambrian Geology, Amsterdam, Elsevier, 16:115-122.), Frei et al. (2011Frei R., Gaucher C., Døssing L.N., Sial A.N., 2011. Chromium isotopes in carbonates - A tracer for climate change and for reconstructing the redox state of ancient seawater. Earth and Planetary Science Letters , 312,114-125.) and Gaucher (2014Gaucher C. 2014. Grupo Arroyo del Soldado. Bossi, J., Gaucher, C. (eds.). Geología del Uruguay. Tomo 1: Predevónico, Montevideo, Polo, pp. 313-339.).
Figure 27:
Stratigraphy and correlations of the ASG with the Corumbá Group in Brazil (Gaucher et al. 2003Gaucher C., Boggiani P.C., Sprechmann P., Sial A.N., Fairchild T.R. 2003. Integrated correlation of Vendian to Cambrian Arroyo del Soldado and Corumbá Groups (Uruguay and Brazil): palaeogeographic, palaeoclimatic and palaeobiologic implications. Precambrian Research , 120:241-278.; Boggiani et al. 2010Boggiani P.C., Gaucher C., Sial A.N., Babinski M., Simon C.M., Riccomini C., Ferreira V.P., Fairchild T.R. 2010. Chemostratigraphy of the Tamengo Formation (Corumbá Group, Brazil): A contribution to the calibration of the Ediacaran carbon-isotope curve. Precambrian Research , 182(4):382-401.) and Sierras Bayas Group in Argentina (Gaucher et al. 2005Gaucher C., Poiré D.G., Gómez Peral L., Chiglino L. 2005. Litoestratigrafía, bioestratigrafía y correlaciones de las sucesiones sedimentarias del Neoproterozoico-Cámbrico del Cratón del Río de la Plata (Uruguay y Argentina). Latin American Journal of Sedimentology and Basin Analysis , 12(2):145-160.; Poiré and Gaucher, 2009Poiré D., Gaucher C. 2009. Lithostratigraphy. Neoproterozoic-Cambrian evolution of the Río de la Plata Palaeocontinent, Gaucher C., Sial A.N., Halverson G.P., Frimmel H.E. (eds.). Neoproterozoic-Cambrian tectonics, global change and evolution: a focus on southwest Gondwana . Developments in Precambrian Geology, Amsterdam, Elsevier, 16:87-101.), as well as underlying glaciogenic units. Modified from Gaucher (2014Gaucher C. 2014. Grupo Arroyo del Soldado. Bossi, J., Gaucher, C. (eds.). Geología del Uruguay. Tomo 1: Predevónico, Montevideo, Polo, pp. 313-339.). BN: Barriga Negra Fm. CSF: Cerros San Francisco Fm. CV: Cerro Victoria Fm. C.Lar.: Cerro Largo Fm. Olav.: Olavarría Fm. L. Negra: Loma Negra Fm. Sources of chemo- and biostratigraphic data and absolute ages: see text.
Table 1:
Correlation of some Cryogenian and Ediacaran successions in Brazil and Africa, based on lower radiogenic 87Sr/86Sr ratios (best preserved samples) available and on carbon isotope shifts. D D D - Glaciogenic diamictites. Sources of information: (1) This work; (2) Sial et al. (2010Sial A.N., Karhu J., Ferreira V.P. 2010a. Insights from Isotope Stratigraphy. Preface to the Special Issue on Precambrian Isotope Stratigraphy. Precambrian Research , 182(4): v-viii.); (3) Sial et al. (2010Sial A.N., Karhu J., Ferreira V.P. 2010a. Insights from Isotope Stratigraphy. Preface to the Special Issue on Precambrian Isotope Stratigraphy. Precambrian Research , 182(4): v-viii.); (4) A.N. Sial (2014, unpublished); (5) Misi et al. (2007Misi A., Kaufman A.J., Veizer J., Powis K., Azmy K., Boggiani P.C., Gaucher C., Teixeira J.B.G., Sanches A.L., Iyer S.S.S. 2007. Chemostratigraphic correlation of Neoproterozoic successions in South America. Chemical Geology , 237:143-167.); (6) Alvarenga et al. (2014Alvarenga C.J.S., Santos R.V., Vieira L.C., Lima B.A.F., Mancini L.H. 2014. Meso-Neoproterozoic isotope stratigraphy on carbonates platforms in the Brasilia Belt of Brazil. Precambrian Research , 251:164-180.); (7) Misi & Veizer (1998Misi A., Veizer J. 1998. Neoproterozoic carbonate sequences of the Una Group, Irecê Basin, Brazil: chemostratigraphy, age and correlations. Precambrian Research , 89:87-100.); (8) Torquato & Misi (1977Torquato JRF, Misi A 1977. Medidas isotópicas de carbono e oxigênio em carbonatos do Grupo Bambuí na região centro-norte do Estado da Bahia. Revista Brasileira de Geociências 7: 14-24.); (9) Kaufman et a l. (2010); (10) Jacobsen & Kaufman (1999Jacobsen S.B., Kaufman A.J. 1999. The Sr, C and O isotopic evolution of Neoproterozoic seawater. Chemical Geology , 161:37-57.); (11) Warren et al. (2011Warren L.V., Fairchild T.R., Gaucher C., Boggiani P.C., Poiré D.G., Anelli L.E., Inchausti J.C.G. 2011.Corumbella and in situ Cloudina in association with thrombolites in the Ediacaran Itapucumi Group, Paraguay: Terra Nova 23: 382-389.); (12) Mallmann et al. (2007Mallmann G., Chemale Jr. F., Avila J.N., Kawashita K., Armstrong R.A. 2007. Isotope geochemistry and geochronology of the Nico Pérez Terrane, Río de la Plata Craton, Uruguay. Gondwana Research , 12(4):489-508.); (13) Oyhantçabal et al. (2009Oyhantçabal P.B., Siegesmund S., Wemmer K., Presnyakov S., Layer P. 2009. Geochronological constraints on the evolution of the southern Dom Feliciano Belt (Uruguay). Journal of the Geological Society , 166:1075-1084.); (14) Gaucher et al. (2004Gaucher C., Sial A.N., Blanco G., Sprechmann P. 2004. Chemostratigraphy of the lower Arroyo del Soldado Group (Vendian, Uruguay) and palaeoclimatic implications. Gondwana Research , 7(3):715-730., 2009bGaucher C., Poiré D.G. 2009b. Palaeoclimatic events. Neoproterozoic-Cambrian evolution of the Río de la Plata Palaeocontinent. Gaucher C., Sial A.N., Halverson G.P., Frimmel H.E., eds., Neoproterozoic-Cambrian tectonics, global change and evolution: a focus on southwest Gondwana. Developments in Precambrian Geology, Amsterdam, Elsevier, 16:123-130.), (15) Gaucher et al. (2007Gaucher C., Sial A.N., Ferreira V.P., Pimentel M.M, Chiglino L., Sprechmann P. 2007. Chemostratigraphy of the Cerro Victoria Formation (Lower Cambrian, Uruguay): evidence for progressive climate stabilization across the Precambrian-Cambrian boundary. Chemical Geology, 237:28-46.); (16) Gómez Peral et al. (2007Gómez Peral L.E., Poiré D.G., Strauss H., Zimmermann U. 2007. Chemostratigraphy and diagenetic constraints on Neoproterozoic carbonate successions from the Sierras Bayas Group, Tandilia System, Argentina. Chemical Geology , 237:109-128.); (17) Bagnoud-Velásquez et al. (2013Bagnoud-Velásquez M., Spangenberg J.E., Poiré D.G., Gómez-Peral L.E. 2013. Stable isotopes (C, S) and hydrocarbon biomarkers in Neoproterozoic sediments of the upper section of Sierras Bayas Group, Argentina. Precambrian Research , 231:340-388.); (18) Gómez Peral et al. (2014Gómez Peral L.E., Kaufman A.J., Poiré D.G. 2014. Paleoenvironmental implications of two phosphogenic events in Neoproterozoic sedimentary successions of the Tandilia System, Argentina. Precambrian Research , 252:88-106.); (19) Boggiani et al. (2010Boggiani P.C., Gaucher C., Sial A.N., Babinski M., Simon C.M., Riccomini C., Ferreira V.P., Fairchild T.R. 2010. Chemostratigraphy of the Tamengo Formation (Corumbá Group, Brazil): A contribution to the calibration of the Ediacaran carbon-isotope curve. Precambrian Research , 182(4):382-401.); (20) Santos et al., 2000Santos R.V., Alvarenga C.J.S., Dardenne M.A., Sial A.N., Ferreira V.P. 2000. Carbon and oxygen isotopes across Meso-Neoproterozoic limestones from Central Brazil: Bambui and Paranoá Groups. Precambrian Research , 104:107-122., (21) Souza (2015Souza, S. C. R. 2015. Detalhamento Estratigráfico das Unidades superiores do Neoproterozóico da Faixa Paraguai. MSc thesis, Instituto de Geociências, Universidade de Brasília, Brazil.), (22) Alvarenga et al . (2010); (23) Chiglino et al. (2015Chiglino L., Gaucher C., Sial A.N., Ferreira V.P. 2015. Acritarchs of the Ediacaran Frecheirinha Formation, Ubajara Group, Northeastern Brazil. Anais da Academia Brasileira de Ciências , 87(2):635-649.), (24) Fraga et al. (2014Fraga L.M.S., Neves S.C., Uhlein A., Sial A.N., Pimentel M.M., Horn A.F. 2014. C-, Sr-isotope stratigraphy of carbonate rocks from the Southern Espinhaço Ridge, Minas Gerais, southeastern Brazil. Anais da Academia Brasileira de Ciências , 86:633-648.) (25) Santana et al. (2016Santana A.V.A., Chemale Jr. F., Scherer C., Guadagnin F., Pereira C.P. 2016. New insights of carbonate sedimentation of the Irecê Basin, São Francisco Craton, based on stratigraphic analyses and isotope studies (submitted).), unpublished, (26) Babinski et al. (2007Babinski M., Vieira L.C., Trindade R.I.F. 2007. Direct dating of the Sete Lagoas cap carbonate (Bambuí Group, Brazil) and implications for the Neoproterozoic glacial events. Terra Nova , 19(6):401-406.), (27) Figueiredo et al. (2009Figueiredo F.T., Almeida R.P., Tohver E., Babinski M., Liu D., Fanning C.M. 2009. Neoproterozoic glacial dynamics revealed by provenance of diamictites of the Bebedouro Formation, São Francisco Craton, Central Eastern Brazil. Terra Nova , 21(5):375-385.).