Magmatismo Toniano de Arco Continental do Complexo Porongos, Cinturāo Dom Feliciano, Sul do Brasil
DOI:
https://doi.org/10.11606/issn.2316-9095.v23-208078Palavras-chave:
Magmatismo Toniano, Arco Magmático Continental, Complexo Metamórfico Porongos, Cinturão de Dobramento e Empurrão, Rochas MetavulcânicasResumo
Este estudo apresenta novas informações sobre deformação, metamorfismo e ambiente tectônico das rochas metavulcânicas da porção sul do Complexo Porongos, sul do Brasil. A análise estrutural permitiu a identificação de três fases de deformação, formadas sob condições dúcteis a semidúcteis. D1 progrediu por meio de partição da deformação, compreendendo dobras fechadas a isoclinais e uma foliação plano axial. Nesse estágio, prevalece o cisalhamento simples, resultando em dobras isoclinais, porfiroclastos do tipo sigma, foliação de transposição e rochas miloníticas. D2 compreende dobras abertas a suaves e uma clivagem plano axial. A formação de bandas de cisalhamento é atribuída à fase semidúctil D3. A assembleia mineral representada por fengita + clorita + clinozoisita-epidoto + actinolita + albita + quartzo associado às temperaturas obtidas por meio do geotermômetro de clorita (316 °C) indicam condições de fácies xisto verde. Os protólitos dessas rochas metavulcânicas são geoquimicamente discriminados como cálcio-alcalinos, dacito a riodacito, com composições peraluminosas. As composições de elementos traços em rocha total mostram enriquecimento em elementos litófilos de grande raio iônico (LILE) e elementos terras raras leves (LREE) e depleção em elementos terras raras pesadas (HREE). Também foram observadas anomalias negativas de Nb, P, Ti e Ta. Todas essas características geoquímicas são típicas de rochas formadas em arcos magmáticos continentais. A comparação geoquímica com outras rochas ortometamórficas tonianas pré-colisionais do Cinturão Dom Feliciano demonstra fortes semelhanças, o que corrobora a interpretação de ambiente de arco continental para a origem dessas rochas tonianas.
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Referências
Allmendinger, R. W., Cardozo, N., Fisher, D. M. (2012). Structural geology algorithms: vectors and tensors in structural geology. Cambridge: Cambridge University Press.
Almeida, F. F. M., Hasuí, Y., Brito Neves, B. B., Fuck, R. A. (1981). Brazilian structural provinces: an introduction. Earth Science Review, 17(1-2), 1-29. https://doi.org/10.1016/0012-8252(81)90003-9
Armbruster, T., Bonazzi, P., Akasaka, M., Bermanec, V., Chopin, C., Gieré, R., Heuss-Assbichler, S., Liebscher, A., Menchetti, S., Pan, Y., Pasero, M. (2006). Recommended nomenclature of epidote-group minerals. European Journal of Mineralogy, 18(5), 551-567. https://doi.org/10.1127/0935-1221/2006/0018-0551
Auzanneau, E., Schmidt, M. W., Vielzeuf, D., Connoly, J. A. D. (2010). Titanium in phengite: a geobarometer for high temperature eclogites. Contribution to Mineralogy and Petrology, 159, 1-24. https://doi.org/10.1007/s00410-009-0412-7
Bailey, E. H., Ragnarsdottir, K. V. (1994). Uranium and thorium solubilities in subduction zone fluids. Earth and Planetary Science Letters, 124(1-4), 119-129. https://doi.org/10.1016/0012-821X(94)00071-9
Baltatzis, E. (1987). Distribution of elements between coexisting phengite and chlorite from low grade rocks from Skiros Island, Greece. Mineralogy and Petrology, 37, 243-250. https://doi.org/10.1007/BF01161819
Battisti, M. A. (2022). Evolução geológica (800-560 Ma) do setor central do Cinturão Dom Feliciano com base no estudo petrológico e de proveniência dos complexos Porongos, Várzea do Capivarita e Passo Feio, RS. PhD Thesis. Porto Alegre: Instituto de Geociências, UFRGS, 280 p. Available at: http://hdl.handle.net/10183/239719. Accessed on: Jul 5, 2023.
Battisti, M. A., Bitencourt, M. F., De Toni, G. B., Nardi, L. V. S., Konopásek, J. (2018). Metavolcanic rocks and orthogneisses from Porongos and Várzea do Capivarita complexes: A case for identification of tectonic interleaving at different crustal levels from structural and geochemical data in southernmost Brazil. Journal of South American Earth Science, 88, 253-274. https://doi.org/10.1016/j.jsames.2018.08.009
Battisti, M. A., Bitencourt, M. F., Florisbal, L. M., Nardi, L. V. S., Ackerman, L., Sláma, J., Padilha, D. F. (2023). Unravelling major magmatic episodes from metamorphic sequences of the Dom Feliciano Belt central sector, southernmost Brazil – A comparative study of geochronology, elemental geochemistry, and Sr-Nd data. Precambrian Research, 385, 106951. https://doi.org/10.1016/j.precamres.2022.106951
Bourdelle, F., Parra, T., Chopin, C., Beyssac, C. (2013). A new chlorite geothermometer for diagenetic to low-grade metamorphic conditions. Contribution to Mineralogy and Petrology, 165, 723-735. https://doi.org/10.1007/s00410-012-0832-7
Boyton, W. V. (1984). Geochemistry of rare earth elements: meteorite studies. In: Henderson, P. (ed.). Rare Earth Element Geochemistry. New York: Elsevier, 63 p.
Brenan, J. M., Shaw, H. F., Ryerson, F. J., Phinney, D. L. (1995). Mineral-aqueous fluid partitioning of trace elements at 900°C and 2.0 GPa: constraints on the trace element chemistry of mantle and deep crustal fluids. Geochimica et Cosmochimica Acta, 59(16), 3331-3350. https://doi.org/10.1016/0016-7037(95)00215-L
Brito Neves, B. B., Fuck, R. A., Pimentel, M. M. (2014). The Brasiliano collage in South America: a review. Brazilian Journal of Geology, 44(3), 493-518. https://doi.org/10.5327/Z2317-4889201400030010
Brown, G. C., Thorpe, R. S., Webb, P. C. (1984). The geochemical characteristics of granitoids in contrasting arcs and comments on magma sources. Journal of Geological Society of London, 141(3), 413-426. https://doi.org/10.1144/gsjgs.141.3.0413
Cabanis, B., Lecolle, M. (1989). Le diagramme La/10-Y/15-Nb/8: unountil pour la discrimination de las series volcaniques et la mise em evidence des processos de mélange et/ou dês contamination crustal. Comptes rendus de l’Académie des Sciences, 309(2), 2023-2029. Available at: http://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=6648552. Accessed on: May 31, 2023.
Camozzato, E., Lopes, R. C., Philipp, R. P. (2017). Geologia e recursos minerais da folha Hulha Negra, SH.22-Y-C-I. Escala 1:100.000, estado do Rio Grande do Sul. Porto Alegre: Programa Geologia do Brasil, CPRM. 164 p. Available at: http://rigeo.cprm.gov.br/jspui/handle/doc/19253. Accessed on: May 31, 2023.
Cardozo, N., Allmendinger, R. W. (2013). Spherical projections with OSXStereonet. Computers & Geosciences, 51, 193-205. https://doi.org/10.1016/j.cageo.2012.07.021
Cathelineau, M. (1988). Cation site occupancy in chlorites and illites as fuction of temperature. Clay Minerals, 23(4), 471-485. https://doi.org/10.1180/claymin.1988.023.4.13
Cerva-Alves, T., Hartmann, L. A., Remus, M. V. D., Lana, C. (2020). Integrated ophiolite and arc evolution, southern Brasiliano Orogen. Precambrian Research, 341, 105648. https://doi.org/10.1016/j.precamres.2020.105648
Chinchilla, D., Arroyo, X., Merinero, R., Piña, R., Nieto, F., Ortega, L., Lunar, R. (2016). Chlorite Geothermometry applied to massive and oscillatory-zoned radiated Mn-rich chlorites in the Patricia Zn-Pb-Ag epithermal deposit (NE, Chile). Applied Clay Science, 134(Part 3), 210-220. https://doi.org/10.1016/j.clay.2016.10.013
Coira, B., Kay, M., Viramonte, J. (1993). Upper Cenozoic magmatic evolution of the Argentine Puna – A model for changing subduction geometry. International Geology Review, 35(8), 677-720. https://doi.org/10.1080/00206819309465552
Condie, K. C., Kröner, A. (2013). The building blocks of continental crust: Evidence for a major change in the tectonic setting of continental growth at the end of the Archean. Gondwana Research, 23(2), 394-402. https://doi.org/10.1016/j.gr.2011.09.011
De Caritat, P., Hutcheon, I., Walshe, J.L. (1993). Chlorite Geothermometry: a review. Clay Mineral, 41, 219-239. https://doi.org/10.1346/CCMN.1993.0410210
Deer, W. A., Howie, R. A., Zussman, J. (2009). Rock-Forming Minerals. 2. ed. London: Geological Society of London. v. 3B. 314 p.
De Toni, G. B., Bitencourt, M. F., Konopásek, J., Battisti, M. A., Costa, E. O., Savian, J. F. (2021). Autochthonous origin of the Encruzilhada Block, Dom Feliciano Belt, southern Brazil, based on aerogeophysics, image analysis and PT-paths. Journal of Geodynamics, 144, 101825. https://doi.org/10.1016/j.jog.2021.101825
De Toni, G. B., Bitencourt, M. F., Nardi, L. V. S., Florisbal, L. M., Almeida, B. S., Geraldes, M. (2020). Dom Feliciano Belt orogenic cycle tracked by its precollisional magmatism: the Tonian (ca. 800 Ma) Porto Belo Complex and its correlations in southern Brazil and Uruguay. Precambrian Research, 342, 105702. https://doi.org/10.1016/j.precamres.2020.105702
Fernandes, L. A. D., Tommasi, A., Porcher, C. C. (1992). Deformation patterns in the southern Brazilian branch of the Dom Feliciano Belt: A reappraisal. Journal of South American Earth Science, 5(1), 77-96. https://doi.org/10.1016/0895-9811(92)90061-3
Fleuty, M. J. (1964). The description of folds. Proceedings of the Geologists’ Association, 75(4), 461-492. https://doi.org/10.1016/S0016-7878(64)80023-7
Fragoso-César, A. R. S. (1991). Tectônica de placas no Ciclo Brasiliano: as orogenias dos cinturões Dom Feliciano e Ribeira no Rio Grande do Sul. Thesis (Doctoral). São Paulo: Instituto de Geociências – USP. https://doi.org/10.11606/T.44.1991.tde-23042013-162133
Gill, R. (2010). Igneous rocks and processes: a practical guide. Hoboken: John Wiley and Sons.
Gollmann, K., Marques, J. C., Frantz, J. C., Chemale Jr., F. (2008). Geoquímica e isótopos de Nd de rochas metavulcânicas da Antiforme Capané, Complexo Porongos, RS. Revista Pesquisas em Geociências, 35(2), 83-95. https://doi.org/10.22456/1807-9806.17939
Gorton, M. P., Schandl, E. S. (2000). From continents to island arcs: a geochemical index of tectonic setting for arcrelated and within-plate felsic to intermediate volcanic rocks. The Canadian Mineralogist, 38(5), 1065-1073. https://doi.org/10.2113/gscanmin.38.5.1065
Gruber, L., Lenz, C., Porcher, C. C., Fernandes, L. A. D. (2011). Proveniência de metassedimentos das sequências Arroio Areião, Cerro Cambará e Quartzo Milonitos no Complexo Porongos, Santana da Boa Vista, RS. Pesquisas em Geociências, 38(3), 205-223. https://doi.org/10.22456/1807-9806.35157
Gruber, L., Porcher, C. C., Koester, E., Bertotti, A. L., Lenz, C., Fernandes, L. A. D., Remus, M. V. D. (2016). Isotope geochemistry and geochronology of syn-depositional volcanism in Porongos metamorphic complex, Santana da Boa Vista Antiform, Dom Feliciano belt, Brazil: onset of an 800 Ma continental arc. Journal of Sedimentary Environment, 1(2), 96-215. https://doi.org/10.12957/jse.2016.22722
Guidotti, C. V. (1984). Micas in metamorphic rocks. In: Bayler, B. W. (ed.). Micas. Reviews in Mineralogy and Geochemistry, 13, 357-468.
Guidotti, C. V., Sassi, F. P. (1998). Miscellaneous isomorphous substitutions in Na-K white micas: a review, with special emphasis to metamorphic micas. Rendiconti Lincei Scienze Fisiche e Naturali, 9, 57-78. https://doi.org/10.1007/BF02904456
Harris, N. B. W., Pearce, J. A., Tindle, A. G. (1986). Geochemical characteristics of collision-zone magmatism. Geological Society, London, Special Publications, 19(1), 67-81. https://doi.org/10.1144/GSL.SP.1986.019.01.04
Hawkesworth, C. J., Gallagher, K., Hergt, J. M., McDermott, F. (1993). Mantle and slab contributions in arc magmas. Annual Review of Earth and Planetary Sciences, 21, 175-204. https://doi.org/10.1146/annurev.ea.21.050193.001135
Hawkesworth, C. J., Turner, S. P., McDermott, F., Peate, D. W., Calsteren, P. V. (1997). U-Th isotopes in arc magmas: implications for element transfer from subducted crust. Science, 276(5312), 551-555. https://doi.org/10.1126/science.276.5312.551
Höfig, D. F., Marques, J. C., Basei, M. A. S., Giusti, R. O., Kohlrausch, C., Frantz, J. C. (2018). Detrital zircon geochronology (U-Pb LA-ICP-MS) of syn-orogenic basins in SW Gondwana: new insights into the Cryogenian-Ediacaran of Porongos Complex, Dom Feliciano belt, southern Brazil. Precambrian Research, 306, 189-208. https://doi.org/10.1016/j.precamres.2017.12.031
Inoue, A., Kurokawa, K., Hatta, T. (2010). Application of chlorite geothermometry to hydrothermal alteration in Toyoha geothermal system, southwestern Hokkaido, Japan. Resource Geology, 60(1), 52-70. https://doi.org/10.1111/j.1751-3928.2010.00114.x
Ionov, D. A., Grégoire, M., Prikhod’ko, V. S. (1999). Feldspar-Ti-oxide metasomatism in off-cratonic continental and oceanic upper mantle. Earth and Planetary Science Letters, 165(1), 37-44. https://doi.org/10.1016/S0012-821X(98)00253-2
Irvine, T. N., Baragar, W. R. A. (1971). A guide to the chemical classification of the common volcanic rocks. Canadian Journal of Earth Science, 8(5), 523-548. https://doi.org/10.1139/e71-055
Jahn, B., Wu, F., Lo, C., Tsai, C. (1999). Crust-mantle interaction induced by deep subduction of the continental crust: geochemical and Sr-Nd isotopic evidence from postcollisional mafic-ultramafic intrusions of the northern Dabie complex, central China. Chemical Geology, 157(1-2), 119-146. https://doi.org/10.1016/S0009-2541(98)00197-1
Jost, H., Bitencourt, M. F. (1980). Estratigrafia e tectônica de uma fração da faixa de dobramentos Tijucas no Rio Grande do Sul. Acta Geologica Leopoldensia, 4, 27-60.
Jowett, E. C. 1991. Fitting iron magnesium into the hydrothermal chlorite geothermometer. In: Proceeding of the Program with Abstracts, Geological Association of Canada – Mineralogical Association of Canada. Society of Economic Geologists. 16, 62 p.
Kendrick, J., Yakymchuk, C. (2020). Garnet fractionation, progressive melt loss and bulk composition variations in anatectic metabasites: complications for interpreting the geodynamic significance of TTGs. Geoscience Frontiers, 11(3), 745-763. https://doi.org/10.1016/j.gsf.2019.12.001
Koester, E., Porcher, C. C., Pimentel, M. M., Fernandes, L. A. D., Vignol-Lelarge, M. L., Oliveira, L. D., Ramos, R. C. (2016). Further evidence of 777 Ma subduction-related continental arc magmatism in Eastern Dom Feliciano belt, southern Brazil: the Chácara das Pedras Orthogneisses. Journal of South American Earth Science, 68, 155-166. https://doi.org/10.1016/j.jsames.2015.12.006
Konopásek, J., Janoušek, V., Oyhantçabal, P., Sláma, J., Ulrich, S. (2018). Did the circum-Rodinia subduction trigger the Neoproterozoic rifting along the Congo-Kalahari Craton margin? International Journal of Earth Science, 107, 1859-1894. https://doi.org/10.1007/s00531-017-1576-4
Le Bas, M. J., Le Maitre, R. W., Streckeisen, A., Zanettin, B. (1986). A chemical classification of volcanic rocks based on total alkali silica diagram. Journal of Petrology, 27(3), 745-750. https://doi.org/10.1093/petrology/27.3.745
Leite, J. A. D., Hartmann, L. A., McNaughton, N. J., Chemale, F. (1998). SHRIMP U-Pb zircon geochronology of Neoproterozoic Juvenile and Crustal-reworked Terranes in Southernmost Brazil. International Geology Review, 40(8), 688-705. https://doi.org/10.1080/00206819809465232
Lena, 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 δ18O data from detrital zircons. Precambrian Research, 247, 126-138. https://doi.org/10.1016/j.precamres.2014.03.010
Lenz, C. (2006). Evolução metamórfica dos metapelitos da Antiforme Serra dos Pedrosas: condições e idades do metamorfismo. Master’s Thesis. Porto Alegre: Instituto de Geociências, UFRGS, 111 p. Available at: http://hdl.handle.net/10183/8520. Accessed on: Jul 5, 2023.
Lenz, C., Fernandes, L. A. D., McNaughton, N. J., Porcher, C. C., Masquelin, H. (2011). U-Pb SHRIMP ages for the Cerro Bori orthogneisses, Dom Feliciano belt in Uruguay: evidences of a ~800 Ma magmatic and ~650 Ma metamorphic event. Precambrian Research, 185(3-4), 149-163. https://doi.org/10.1016/j.precamres.2011.01.007
Lenz, C., Porcher, C. C., Fernandes, L. A. D., Masquelin, H., Koester, E., Conceição, R. V. (2013). Geochemistry of the Neoproterozoic (800-767 Ma) Cerro Bori orthogneisses, Dom Feliciano belt, in Uruguay: Tectonic evolution of an ancient continental arc. Mineralogy and Petrology, 107, 785-806. https://doi.org/10.1007/s00710-012-0244-4
Li, G., Peacor, D. R., Coombs, D. S., Kawachi, Y. (1997). Solid solution in the celadonite family: The new minerals ferroceladonite, K2Fe2+2 Fe3+2 Si8O20(OH)4, and ferroaluminoceladonite, K2Fe2+2Al2Si8O20(OH)4. American Mineralogist, 82(5-6), 503-511. https://doi.org/10.2138/am-1997-5-60900
Lusa, M., Philipp, R. P., Nardi, L. V. S. (2010). Geoquímica e petrologia dos metagranitos do Complexo Encantadas, Santana da Boa Vista, (RS): a evolução de uma margem continental ativa no Paleoproterozóico. Revista Brasileira de Geociências, 40(2), 151-166.
Martil, M. M. D., Bitencourt, M. F., Nardi, L. V. S. (2011). Caracterização Estrutural e petrológica do magmatismo précolisional do Escudo Sul-rio-grandense: os ortognaisses do Complexo Metamórfico Várzea do Capivarita. Pesquisas em Geociências, 38(2), 181-201. https://doi.org/10.22456/1807-9806.26383
Martil, M. M. D., Bitencourt, M. F., Nardi, L. V. S., Schmitt, R. S., Weinberg, R. (2017). Pre-collisional, Tonian (ca. 790 Ma) continental arc magmatism in southern Mantiqueira Province, Brazil: geochemical and isotopic constraints from the Várzea do Capivarita Complex. Lithos, 274-275, 39-52. https://doi.org/10.1016/j.lithos.2016.11.011
McDonough, W. F., Sun, S.-S. (1995). The composition of the Earth. Chemical Geology, 120(3-4), 223-253. https://doi.org/10.1016/0009-2541(94)00140-4
Moazzen, M. (2004). Chlorite-chloritoid-garnet equilibria and geothermobarometry in the Sanandai-Sirjan metamorphic belt, southern Iran. Iranian Journal Science and Technology Transaction, 28, 65-78.
Oriolo, S., Oyhantçabal, P., Wemmer, K., Siegesmund, S. (2017). Contemporaneous assembly of Western Gondwana and final Rodinia break-up: implications for the supercontinent cycle. Geoscience Frontiers, 8(6), 1431-1445. https://doi.org/10.1016/j.gsf.2017.01.009
Passchier, C. W., Trouw, R. A. J. (2005). Microtectonics. 2ª ed. Berlin: Springer.
Pearce, J. A. (1996). Sources and settings of granitic rocks. Episodes, 19(4), 120-125. https://doi.org/10.18814/epiiugs/1996/v19i4/005
Pearce, J. A. (2008). Geochemical fingerprinting of oceanic basalts with applications to ophiolite classification and the search for Archean oceanic crust. Lithos, 100(1-4), 14-48. https://doi.org/10.1016/j.lithos.2007.06.016
Pearce, J. A., Harris, N. B. W., Tindle, A. G. (1984). Trace element distribution diagrams for the tectonic interpretation of granitic rocks. Journal of Petrology, 25(4), 956-983. https://doi.org/10.1093/petrology/25.4.956
Pearce, M. A., Wheeler, J. (2014). Microstructural and metamorphic constraints on the thermal evolution of the southern region of the Lewisian Gneiss Complex, NW Scotland. Journal of Petrology, 55(10), 2043-2066. https://doi.org/10.1093/petrology/egu049
Peccerillo, A., Taylor, S. R. (1976). Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamonu area, Northern Turkey. Contribution to Mineralogy and Petrology, 58, 63-81. https://doi.org/10.1007/BF00384745
Pertille, 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 Shield, southern Brazil. Journal of South American Earth Sciences, 63, 334-345. https://doi.org/10.1016/j.jsames.2015.08.005
Pertille, J., Hartmann, L. A., Philipp, R. P., Petry, T. S., Carvalho Lana, 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(Part 1), 69-93. https://doi.org/10.1016/j.jsames.2015.09.001
Pertille, J., Hartmann, L. A., Santos, J. O. S., McNaughton, N. J., Armstrong, R. (2017). Reconstructing the Cryogenian-Ediacaran evolution of the Porongos fold and thrust belt, Southern Brasiliano Orogen, based on Zircon U-Pb-Hf-O isotopes. International Geology Review, 59(12), 1532-1560. https://doi.org/10.1080/00206814.2017.1285257
Philipp, R. P., Campos, R. S. (2004). Geologia, Petrografia e litogeoquímica dos Gnaisses Porto Alegre, RS, Brasil: implicações geotectônicas. Pesquisas em Geociências, 31(2), 79-94. https://doi.org/10.22456/1807-9806.19575
Philipp, R. P., Lusa, M., Nardi, L. V. S. (2008). Geochemistry and petrology of dioritic, tonalitic and trondhjemitic gneisses from Encantadas Complex, Santana da Boa Vista, southernmost Brazil: Paleoproterozoic continental-arc magmatism. Anais da Academia Brasileira de Ciências, 80(4), 735-748. https://doi.org/10.1590/S0001-37652008000400013
Philipp, R. P., Pimentel, M. M., Chemale Jr., F. (2016). Tectonic evolution of the Dom Feliciano belt in southern Brazil: geological relationships and U-Pb geochronology. Brazilian Journal of Geology, 46(Suppl. 1), 83-104. https://doi.org/10.1590/2317-4889201620150016
Plissart, G., Férménias, O., Mãruntiu, M., Diot, H., Demaiffe, D. (2009). Mineralogy and Geothermometry of gabbroderived listvenites in the Tisovita-luti ophiolite, southwestern Romania. Canadian Mineralogist, 47, 81-105.
Porcher, C. C. (1992). Caracterização das condições de fluxo de uma zona de cisalhamento tangencial na região de Santana da Boa Vista (RS). Dissertation (Master). Porto Alegre: Universidade Federal do Rio Grande do Sul, 192 p.
Porcher, C. C., Fernandes, L. A. D. (1990). Relações embasamento/cobertura na porção ocidental do Cinturão Dom Feliciano: um esboço estrutural. Pesquisas em Geociências, 17(1-2), 72-84. https://doi.org/10.22456/1807-9806.21384
Ramos, R. C., Koester, E., Vieira, D. T., Porcher, C. C., Gezatt, J. N., Silveira, R. L. (2018). Insights on the evolution of the Arroio Grande ophiolite (Dom Feliciano belt, Brazil) from Rb-Sr and SHRIMP U-Pb isotopic geochemistry. Journal of South American Earth Sciences, 86, 38-53. https://doi.org/10.1016/j.jsames.2018.06.004
Remus, M. V. D., Hartmann, L. A., Ribeiro, M. (1991). Nota sobre a geologia dos metamorfitos de pressão intermediária e granitóides associados da região de Pinheiro Machado/RS. Acta Geologica Leopoldensia, 34, 175-190.
Rieder, M., Cavazzini, G., D’yakonov, Y. S., Frank-Kamenetskii, V. A., Gottardi, G., Guggenheim, S., Koval, P. V., Müller, G., Neiva, A. M. R., Radoslovich, E. W., Robert, J. L., Sassi, F. P., Takeda, H., Weiss, Z., Wones, D. (1998). Nomenclature of the Micas. Clays and Clay Minerals, 46(5), 586-595. https://doi.org/10.1346/CCMN.1998.0460513
Rudnick, R. L., Gao, S. (2003). Composition of the continental crust. In: Holland, H. D., Turekian, K. K. (eds.). Treatise on Geochemistry. Oxford: Elsevier. v. 3. p. 1-64.
Saalmann, K., Gerdes, A., Lahaye, Y., Hartmann, L. A., Remus, M. V. D., Läufer, A. (2011). Multiple accretion at the eastern margin of the Rio de la Plata craton: the prolonged Brasiliano orogeny in southernmost Brazil. International Journal of Earth Science, 100, 355-378. https://doi.org/10.1007/s00531-010-0564-8
Saalmann, K., Hartmann, L. A., Remus, M. (2005). Tectonic evolution of two contrasting schist belts in southernmost Brazil: a plate tectonic model for the Brasiliano orogeny. International Geology Review, 47(12), 1234-1259. https://doi.org/10.2747/0020-6814.47.12.1234
Saalmann, K., Remus, M. V. D., Hartmann, L. A. (2006). Structural evolution and tectonic setting of the Porongos belt, southern Brazil. Geological Magazine, 143(1), 59-88. https://doi.org/10.1017/S0016756805001433
Santos, J. O. S., Hartmann, L. A., Bossi, J., Campal, N., Schipilov, A., Piñeyro, D., McNaughton, N. J. (2003). Duration of the Trans-Amazonian Cycle and its correlation within South America Based on U-Pb SHRIMP Geochronology of the La Plata Craton, Uruguay. International Geology Review, 45(1), 27-48. https://doi.org/10.2747/0020-6814.45.1.27
Schandl, E. S., Gorton, M. P. (2002). Application of high field strength elements to discriminate tectonic setting in VMS environments. Economic Geology, 97(3), 629-642. https://doi.org/10.2113/gsecongeo.97.3.629
Schmidt, R., Franz, L., Oberhänsli, R., Dong, S. (2000). High-Si phengite, mineral chemistry and P-T evolution of ultra-high-pressure eclogitos and calc-silicates from the Dabie Shan, eastern China. Geological Journal, 35(3-4), 185-207. https://doi.org/10.1002/gj.863
Silva, L. C., Hartmann, L. A., McNaughton, N. J., Fletcher, I. R. (1999). SHRIMP U-Pb zircon dating of Neoproterozoic Granitic Magmatism and Collision in the Pelotas Batholith, Southernmost Brazil. International Geology Review, 41(6), 531-551. https://doi.org/10.1080/00206819909465156
Stern, R. J. (2002). Subduction zones. Reviews of Geophysics, 40(4), 31-38. https://doi.org/10.1029/2001RG000108
Takehara, L., Laux, J. H. (2019). Área de relevante interesse mineral: integração geológica-geofísica e recursos minerais Batólito Pelotas e Terreno Tijucas. Escala 1:500.000, estado do Rio Grande do Sul. Porto Alegre: CPRM, 186 p.
Tambara, G. B. (2015). Gnaisses Piratini: Magmatismo de 784 Ma no Sudeste do Cinturão Dom Feliciano. Dissertation (Master). Porto Alegre: Instituto de Geociências – UFRGS.
Tambara, G. B., Koester, E., Ramos, R. C., Porcher, C. C., Vieira, D. T., Fernandes, L. A. D., Lenz, C. (2019). Geoquímica e geocronologia dos Gnaisses Piratini: magmatismo cálcio-alcalino médio a alto-K de 784 Ma (U-Pb SHRIMP) no SE do Cinturão Dom Feliciano (RS, Brasil). Pesquisas em Geociências, 46(2), e0769. https://doi.org/10.22456/1807-9806.95466
Tappert, M. C., Rivard, B., Giles, D., Tappert, R., Mauger, A. (2013). The mineral chemistry, near-infrared, and mid-infrared reflectance spectroscopy of phengite from the Olympic Dam IOCG deposit, South Australia. Ore Geology Reviews, 53, 26-38. https://doi.org/10.1016/j.oregeorev.2012.12.006
Trincal, V., Lanari, P., Buatier, M., Lacroix, B., Charpentier, D., Labaume, P., Muñoz, M. (2015). Temperature micromapping in oscillatory-zoned chlorite: Application to study of a green-schist facies fault zone in the Pyrenean Azial Zone (Spain). American Mineralogist, 100(11-12), 2468-2483. https://doi.org/10.2138/am-2015-5217
Vidal, O., De Andrade, V., Lewin, E., Munoz, M., Parra, T., Pascarelli, S. (2006). P-T-deformation-Fe3+/Fe2+ mapping at the thin section scale and comparison with XANES mapping: application to a garnet-bearing metapelite from the Sambagawa metamorphic belt (Japan). Journal of Metamorphic Geology, 24(7), 669-683. https://doi.org/10.1111/j.1525-1314.2006.00661.x
Vieira, D. T., Koester, E., Ramos, R. C., Porcher, C. C. (2019). Sr-Nd-Hf isotopic constraints and U-Pb geochronology of the Arroio Pedrado Gneisses, Dom Feliciano belt, Brazil: A 680 Ma shoshonitic event in the final stages of the Piratini Arc evolution. Journal of South American Earth Sciences, 95, 102294. https://doi.org/10.1016/j.jsames.2019.102294
Wilson, M. S. (1989). Igneous petrogenesis A global tectonic approach. London: Chapman and Hall. 466 p. https://doi.org/10.1007/978-1-4020-6788-4
Will, T. M., Höhn, S., Frimmel, H. E., Gaucher, C., le Roux, P. J., Macey, P. H. (2020). Petrological, geochemical and isotopic data of Neoproterozoic rock units from Uruguay and South Africa: Correlation of basement terranes across the South Atlantic. Gondwana Research, 80, 12-32. https://doi.org/10.1016/j.gr.2019.10.012
Winchester, J. A., Floyd, P. A. (1977). Geochemical discrimination of different magma series and their differentiation products using immobile elements. Chemical Geology, 20, 325-343. https://doi.org/10.1016/0009-2541(77)90057-2
Wise, W. S., Eugster, H. P. (1964). Celadonite: synthesis, thermal stability and occurrence. American Mineralogist, 49(7-8), 1031-1083.
Yavuz, F., Kumral, M., Karakaya, N., Karakaya, M. Ç., Yildirim, D. (2015). A Windows program for chlorite calculation and classification. Computers & Geosciences, 81, 101-113. https://doi.org/10.1016/j.cageo.2015.04.011
Yavuz, F., Yildirim, D. K. (2018). A windows program for calculation and classification of epidote-supergroup minerals. Periodico di Mineralogia, 87(3), 269-285. https://doi.org/10.2451/2018PM808
Zane, A., Weiss, Z. (1998). A procedure for classifying rock-forming chlorites based on microprobe data. Rendiconti Lincei, 9, 51-56. https://doi.org/10.1007/BF02904455
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