Petrogenesis of Cambro-Ordovician magmatism in Araçuaí Orogen, SE Brazil: Petrography, litogeochemistry and zircon geochronology of the Pedra Azul Intrusive Complex
DOI:
https://doi.org/10.11137/1982-3908_2025_48_66562Keywords:
Two-component mixture, Hybridization of granitoids, Crustal meltingAbstract
The Araçuaí Orogen is characterized by intense magmatic activity corresponding to pre-, syn-, and post-tectonic evolutionary stages between the Neoproterozoic and the Cambro-Ordovician. Bimodal plutons predominantly mark the final stage of this magmatism. The Pedra Azul Intrusive Complex (PAIC) is a post-collisional pluton composed of rocks ranging from syenogranite and monzogranite (featuring ocellar textures) to granodiorite and tonalite. The PAIC was emplaced along a regional lineament during the orogen's collapse phase, intruding metasedimentary sequences, which are observed as xenoliths and roof pendants within the granites of the intrusion. This study presents detailed petrographic analyses, combined with lithogeochemical data and zircon U-Pb geochronology. Macro- and micro-scale evidence indicates that the lithotypes within the PAIC interacted to produce mixing and mingling features. Geochemical data divide the mapped rocks of the PAIC into three distinct groups: monzogranite/syenogranite, granodiorite/tonalite, and ocelar granite. Magma mixing modeling demonstrated that binary mixing between granites and tonalites/granodiorites corresponds to the composition of the ocelar granites. U-Pb zircon dating (via laser ablation inductively coupled plasma mass spectrometry [LA-ICP-MS]) revealed crystallization ages of 501 ± 5 My for monzogranite, 505 ± 3 My for syenogranite, 494 ± 4 My, 486 ± 5 My, and 497 ± 3 My for granodiorite, and 503 ± 3 My for tonalite. The data obtained for the PAIC indicate that the rocks composing the complex were formed from different sources.
Downloads
References
Alkmim, F.F., Marshak, S., Pedrosa-Soares, A.C., Peres, G.G., Cruz, S.C.P. & Whittington, A. 2006, ‘Kinematic evolution of the Araçuaí-West Congo orogen in Brazil and Africa: Nutcracker tectonics during the Neoproterozoic assembly of Gondwana’,Precambrian Research, vol. 149, pp. 43-64, DOI:10.1016/j.precamres.2006.06.007. https://doi.org/10.1016/j.precamres.2006.06.007
Alkmim, F.F., Pedrosa-soares, A.C., Noce, C.M., Cerqueira, S. & Cruz, P. 2007, ‘Sobre a Evolução Tectônica do Orógeno Araçuaí-Congo Ocidental’, Geonomos, vol. 15, pp. 25-43, DOI:10.18285/geonomos.v15i1.105. https://doi.org/10.18285/geonomos.v15i1.105
Alkimim, F.F., Kuchenbecker, M., Reis, H.L.S. & Pedrosa-Soares, A.C. 2017, ‘The Araçuaí belt’, in M., Heilbron, U.G., Cordani, F.F., Alkmim (eds), São Francisco Craton, Eastern Brazil, Regional Geology Reviews, Springer International Publishing Co, pp. 255-276.
Amaral, L., Caxito, F.A., Pedrosa-Soares, A.C., Queiroga, G., Babinski, M., Trindade, R., Lana, C. & Chemale, F. 2020, ‘The Ribeirão da Folha ophiolite-bearing accretionary wedge (Araçuaí orogen, SE Brazil): new data for Cryogenian plagiogranite and metasedimentary rocks’, Precambrian Research, 336, 105522, DOI:10.1016/j. precamres.2019.105522. https://doi.org/10.1016/j. precamres.2019.105522
Araujo, C., Pedrosa-Soares, A., Lana, C., Dussin, I., Queiroga, G., Serrano, P. & Medeiros- Júnior, E. 2020, ‘Zircon in emplacement borders of post-collisional plutons compared to country rocks: a study on morphology, internal texture, U-Th-Pb geochronology and Hf isotopes (Araçuaí orogen, SE Brazil)’, Lithos, vol. 352-353, pp. 1-18, DOI:10.1016/j.lithos.2019.105252. https://doi.org/10.1016/j.lithos.2019.105252
Araujo, C., Pedrosa-Soares, A., Lana, C., Tedeschi, M., Roncato, J., Dussin, I., Serrano, P. & Dantas, E. 2023, ‘Tracking a magmatic arc within a confined orogen: new evidence from the Araçuaí orogen (SE Brazil)’, Journal of South American Earth Science, vol. 129, pp. 1-22, DOI:10.1016/j.jsames.2023.104490. https://doi.org/10.1016/j.jsames.2023.104490
Aranda, R.O., Chaves, A.O., Medeiros Júnior, E.B. & Venturini Junior, R. 2020, ‘Petrology of the Afonso Cláudio Intrusive Complex: new insights for the Cambro-Ordovician post-collisional magmatism in the Araçuaí-West Congo orogen, southeast Brazil’, Journal of South American Earth Science, vol. 98, pp. 1-19, DOI:10.1016/j.jsames.2019.102465. https://doi.org/10.1016/j.jsames.2019.102465
Babinski, M., Pedrosa-Soares, A.C., Trindade, R.I.F., Martins, M., Noce, C.M. & Liu, D. 2012, ‘Neoproterozoic glacial deposits from the Araçuaí Orogen, Brazil: Age, provenance and correlations with the São Francisco craton and West Congo belt’, Gondwana Research, vol. 21, pp. 451-465, DOI:10.1016/j.gr.2011.04.008. https://doi.org/10.1016/j.gr.2011.04.008
Bellon, U.D., Souza Junior, G.F., Temporim, F.A., D’Agrella-Filho, M.S. & Trindade, R.I.F. 2022, ‘U-Pb geochronology of a reversely zoned pluton: records of pre-to-post collisional magmatism of the Araçuaí belt (SE- Brazil)?’, Journal of South American Earth Science, 119, pp. 1-15. DOI:10.1016/j.jsames.2022.104045. https://doi.org/10.1016/j.jsames.2022.104045
Bione, F.R.A., Bongiolo, E.M., Mendes, J.C. & Roland, C.L. 2019, ‘Geochemistry, Sm-Nd isotopes and SHRIMP U-Pb geochronology of the Morro do Coco Granite (RJ, Brazil): Another piece of the post-collisional magmatism of the Ribeira Belt. Braz’, Journal of Geology, vol. 49, pp. 1-19, DOI:10.1590/2317-4889201920190010. https://doi.org/10.1590/2317-4889201920190010
Bongiolo, E.M., Renac, C., Piza, P.D.A.T., Schmitt, R.S. & Mexias, A.S. 2016, ‘Origin of pegmatites and fluids at Ponta Negra (RJ, Brazil) during late- to post-collisional stages of the Gondwana Assembly’, Lithos, vol. 240-243, pp. 259-275, DOI:10.1016/j.lithos.2015.11.015. https://doi.org/10.1016/j.lithos.2015.11.015
Bonin, B. 2004, ‘Do coeval mafic and felsic magmas in post-collisional to within-plate regimes necessarily. imply two contrasting, mantle and crustal, sources? A review’. Lithos, 78, pp. 1 24, DOI:10.1016/j.lithos.2004.04.042. https://doi.org/10.1016/j.lithos.2004.04.042
Boynton, W.V. 1984, ‘Cosmochemistry of the rare earth elements: meteoritic studies’, in P. Hendersen (ed), Rare Earth Elements Geochemistry, Elsevier, Amsterdam, pp. 63-114.
Caxito, F.A., Hartmann, L.A., Heilbron, M., Pedrosa-Soares, A.C., Bruno, H., Basei, M.A. & Chemale, F. 2022, ‘Multi-proxy evidence for subduction of the Neoproterozoic Adamastor Ocean and Wilson cycle tectonics in the South Atlantic Brasiliano Orogenic System of Western Gondwana’, Precambrian Research, vol. 376, 106678, DOI:10.1016/j.precamres.2022.106678. https://doi.org/10.1016/j.precamres.2022.106678
Costa-de-Moura, J., Wiedemann, C.M., Nascimento R.C.C., Vriend S. & Silva, D.B.M. 1997, ‘Geologia, petrografia e geoquímica do Complexo Intrusivo de Pedra Azul, Espírito Santo’, Proceedings of Academia Brasileira de Ciências, vol. 69, no. 1.
De Campos, C.P., Cezar Mendes, J., Ludka, I.P., Medeiros, S.R., Moura, J.C. & Wallfass, C. M. 2004, ‘A review of the Brasiliano magmatism in southern Espírito Santo, Brazil, with emphasis on post-collisional magmatism’, Journal of Virtual Explorer, vol. 17, pp. 1-39, DOI:10.3809/jvirtex.2004.00106. https://doi.org/10.3809/jvirtex.2004.00106
De Campos, C.P., Medeiros, S.R., Mendes, J.C., Pedrosa-Soares, A.C., Dussin, I., Ludka, I. P. & Dantas, E.L. 2016, ‘Cambro-ordovician magmatism in the Araçuaí belt (SE Brazil): snapshots from a post-collisional event’, Journal of South American Earth Science, vol. 68, pp. 248-268, DOI:10.1016/j.jsames.2015.11.016. https://doi.org/10.1016/j.jsames.2015.11.016
Degler, R., Pedrosa-Soares, A., Novo, T., Tedeschi, M., Silva, L.C., Dussin, I. & Lana, C. 2018, ‘Rhyacian-Orosirian isotopic records from the basement of the Araçuaí-Ribeira orogenic system (SE Brazil): links in the Congo-São Francisco palaeocontinent’, Precambrian Research, vol. 317, pp. 179-195, DOI:10.1016/j.precamres.2018.08.018. https://doi.org/10.1016/j.precamres.2018.08.018
Dewey, J.F. 1988, ‘Extensional collapse of orogens’, Tectonics, vol. 7, pp. 1123-1139.
Faria, T.G., Alves, M.I., Potratz, G.L., Silva, L.F.R., Rodrigues, S.W.O., Martins, M.V.A. & Geraldes, M.C. 2022, ‘The Serra do Caparaó Complex, Mantiqueira Province, Brazil, revisited: Metamorphic age constraints by U-Pb and Lu-Hf method in zircon by LA-ICPMS’, Journal of Geological Survey of Brazil, vol. 5, pp. 49-80, DOI:10.29396/jgsb.2022.v5.n1.1. https://doi.org/10.29396/jgsb.2022.v5.n1.1
Frost, B.R. & Frost, C.D. 2008, ‘A geochemical classification for feldspathic igneous rocks’, Journal of Petrology, vol. 49, pp. 1955-1969,DOI:10.1093/petrology/egn054. https://doi.org/10.1093/petrology/egn054
Frost, B.R., Arculus, R.J., Barnes, C.G., Collins, W.J., Ellis, D.J. & Frost, D.C. 2001, ‘A geochemical classification of granitic rocks’, Journal of Petrology, vol. 42, pp. 2033-2048. DOI:10.1093/petrology/42.11.2033. https://doi.org/10.1093/petrology/42.11.2033
Gerdes, A., Worner, G. & Finger, F. 2000, ‘Hybrids, magma mixing and enriched mantle melts in post-collisional Variscan granitoids: the Rastenberg Pluton, Austria’, in W., Franke, V., Haak, O., Oncken, D., Tanner (eds), Orogenic Processes: Quantification and Modelling in the Variscan Belt, Geological Society, London, Special Publications, vol. 179, pp. 415-431, DOI:10.1144/GSL.SP.2000.179.01.25.
https://doi.org/10.1144/GSL.SP.2000.179.01.25
Gómez-Frutos, D., Castro, A. & Gutiérrez-Alonso, G. 2023, ‘Post-collisional batholiths do contribute to continental growth’, Earth and Planetary Science Letters, vol. 603, 11797. DOI:10.1016/j.epsl.2022.117978. https://doi.org/10.1016/j.epsl.2022.117978
Gonçalves, L., Farina, F., Lana, C., Pedrosa-Soares, A.C., Alkmim, F. & Nalini, H.A. 2014, ‘New U-Pb ages and lithochemical attributes of the Ediacaran Rio Doce magmatic arc, Araçuaí confined orogen, southeastern Brazil’, Journal of South American Earth Science, 52, 129-148 DOI:10.1016/j.jsames.2014.02.008. https://doi.org/10.1016/j.jsames.2014.02.008
Gonçalves, L., Alkmim, F.F., Pedrosa-Soares, A.C., Dussin, I.A., Valeriano, C.M., Lana, C. & Tedeschi, M. 2016, ‘Granites of the intracontinental termination of a magmatic arc: an example from the Ediacaran Araçuaí orogen, southeastern Brazil’, Gondwana Research, vol. 36, pp. 439-458, DOI:10.1016/j.gr.2015.07.015. https://doi.org/10.1016/j.gr.2015.07.015
Gonçalves, L., Alkmim, F.F., Pedrosa-Soares, A., Gonçalves, C.C. & Vieira, V. 2018, ‘From the plutonic root to the volcanic roof of a continental magmatic arc: a review of the Neoproterozoic Araçuaí orogen, southeastern Brazil’, International Journal Earth Science, vol. 107, pp. 337-358, DOI:10.1007/s00531-017-1494-5. https://doi.org/10.1007/s00531-017-1494-5
Gouvêa, L.P., Medeiros, S.R., Mendes, J.C., Soares, C., Marques, R. & Melo, M. 2020, ‘Magmatic activity period and estimation of P-T metamorphic conditions of Pre- Collisional Opx-Metatonalite from Araçuaí-Ribeira orogens boundary, SE Brazil’, Journal of South American Earth Science, vol. 99, 102506, DOI:10.1016/j.jsames.2020.102506. https://doi.org/10.1016/j.jsames.2020.102506
Gradim, C., Roncato, J., Pedrosa-Soares, A.P., Cordani, U., Dussin, I., Alkmim, F.F., Queiroga, G., Jacobsohn, T., Silva, L.C. & Babinski, M. 2014, ‘The hot back-arc zone of the Araçuaí orogen, Eastern Brazil: from sedimentation to granite generation’, Brazilian Journal of Geology, vol. 44, pp. 155-180, DOI:10.5327/Z2317-48892014000100012. https://doi.org/10.5327/Z2317-48892014000100012
Harker, A. 1956, Petrology for Students. An Introduction to the Study of Rocks under the Microscope, 8a ed. Cambridge University Press, Cambridge.
Harris, N. B. W., Pearce, J. A. & Tindle, A.G. 1986, ‘Geochemical characteristics of collision zone magmatism’, in M.P., Coward & A.C., Ries (eds), Collision Tectonics, Geological Society, London, Special Publications 19, pp. 67- 82.
Heilbron, M.L., Pedrosa-Soares, A.C., Campos Neto, M.C., Silva, L.C., Trouw, R. & Janasi, V.A. 2004, ‘Brasiliano Orogens in Southeast and South Brazil’, Journal of Virtual Explorer, vol. 17, paper 4, DOI:10.3809/jvirtex.2004.00109. https://doi.org/10.3809/jvirtex.2004.00109
Hibbard, M.J. 1995, Petrography to Petrogenesis, Prentice Hall, Englewood Cliffs, New Jersey.
Jackson, S.E., Pearson, N.J. & Griffin, E.A. 2004, ‘The application of laser ablation-inductively coupled plasma- mass spectrometry to in situ U-Pb zircon geochronology’, Chemical Geology, pp. 47-69, DOI:10.1016/j.chemgeo.2004.06.017. https://doi.org/10.1016/j.chemgeo.2004.06.017
Kuchenbecker, M., Pedrosa-Soares, A.C., Babinski, M., & Fanning, M. 2015, ‘Detrital zircon age patterns and provenance assessment for pre-glacial to post-glacial successions of the Neoproterozoic Macaúbas Group, Araçuaí orogen, Brazil’, Precambrian Research, vol. 266, pp. 12-26. DOI:10.1016/j.precamres.2015.04.016. https://doi.org/10.1016/j.precamres.2015.04.016
Laurent, A., Janousek, V., Magna, T., Schulmann, K. & Miková, J. 2014, ‘Petrogenesis and geochronology of a post-orogenic calc-alkaline magmatic association: the Žulová Pluton, Bohemian Massif’, Journal of Geoscience, vol. 59, pp. 415-440, DOI:10.3190/jgeosci.176. https://doi.org/10.3190/jgeosci.176
Liégeois, J.P., Navez, J., Hertogen, J. & Black, R. 1998, ‘Contrasting origin of post-collisional high-K calc-alkaline and shoshonitic versus alkaline and peralkaline granitoids: the use of sliding normalization’, Lithos, vol. 41, pp. 1-28, DOI:10.1016/S0024-4937(98)00023-1. https://doi.org/10.1016/S0024-4937(98)00023-1
Ludka, I.P. & Wiedemann-Leonardos, C.M. 2000, ‘Further signs of an enriched mantle source under the neoproterozoic Araçuaí-Ribeira mobile belt’, Revista Brasileira de Geociências, vol. 30, pp. 95-98, DOI: 10.25249/0375-7536.2000301095098. https://doi.org/10.25249/0375-7536.2000301095098
Macêdo, I.M.L., Geraldes, M.C.G., Marques, R.A., Melo, M.G., Tavares, A.D., Martins, M.V.A., Oliveira, H.C. & Rodrigues, R.D. 2022, ‘New clues for magma-mixing processes using petrological and geochronological evidence from the Castelo Intrusive Complex, Araçuaí Orogen (SE Brazil)’, Journal of South American Earth Science, vol. 115, 103758, DOI:10.1016/j.jsames.2022.103758. https://doi.org/10.1016/j.jsames.2022.103758
Mauri, S., Heilbron, M., Bruno, H., Bersan, S., Almeida, R., Marques, R.A., Lacerda, S., Souza, A.M., Paravidini, G., Neto, C., Valeriano, C.M., Chapman, G., Fowler, M., Mottram, C., Strachan, R. & Storey, C. 2024, ‘Coeval TTG and sanukitoid magmatism during the Rhyacian tectonic evolution of the Juiz de Fora Complex (São Francisco Paleocontinent, SE-Brazil)’,Precambrian Research, vol. 414, 107585, DOI: 10.1016/j.precamres.2024.107585. https://doi.org/10.1016/j.precamres.2024.107585
Medeiros, S.R., Wiedeman-Leonardos, C.M. & Mendes, J.C. 2000, ‘Post-collisional multistage magmatism in the Ribeira mobile belt; geochemical and isotopic study of the Varzea Alegre intrusive complex, Espírito Santo, Brazil’, Revista Brasileira de Geociências, vol. 30, pp. 30-34, DOI:10.25249/0375-7536.2000301030034. https://doi.org/10.25249/0375-7536.2000301030034
Melo, M.G., Lana, C., Stevens, G., Pedrosa-Soares, A.C., Gerdes, A., Alkmin, L.A., Nalini, H.A. & Alkmim, F.F. 2017a, ‘Assessing the isotopic evolution of S-type granites of the Carlos Chagas Batholith, SE Brazil: clues from U-Pb, Hf isotopes, Ti geothermometry and trace element composition of zircon’, Lithos, vol. 284-285, pp. 730- 750, DOI:10.1016/j.lithos.2017.05.025. https://doi.org/10.1016/j.lithos.2017.05.025
Melo, M.G., Stevens, G., Lana, C., Pedrosa-Soares, A.C., Frei, D., Alkmim, F.F. & Alkmin, L.A. 2017b, ‘Two cryptic anatectic events within a syn-collisional granitoid from the Araçuaí orogen (southeastern Brazil): evidence from the polymetamorphic Carlos Chagas batholith’, Lithos, vol. 277, pp. 51-71, DOI:10.1016/j.lithos.2016.10.012. https://doi.org/10.1016/j.lithos.2016.10.012
Melo, M.G., Lana, C., Stevens, G., Hartwig, M.E. & Pimenta, M.S. 2020, ‘Deciphering the source of multiple U- Pb ages and complex Hf isotope composition in zircon from post-collisional charnockite-granite associations from the Araçuaí Orogen (southeastern Brazil)’, Journal of South American Earth Science, vol. 103, 102792, DOI:10.1016/j.jsames.2020.102792. https://doi.org/10.1016/j.jsames.2020.102792
Mendes, J.C. & De Campos, C.M.P. 2012, ‘Norite and charnockites from the Venda Nova Pluton, SE Brazil: intensive parameters and some petrogenetic constraints’, Geoscience Frontiers, vol. 3, pp. 789-800, DOI:10.1016/j.gsf.2012.05.009. https://doi.org/10.1016/j.gsf.2012.05.009
Niu, Y., Zhao, Z., Zhu, D. C. & Mo, X. 2013, ‘Continental collision zones are primary sites for net continental crust growth-attestable hypothesis’, Earth-Science Reviews, vol. 127, pp. 96-110, DOI:10.1016/j.earscirev.2013.09.004. https://doi.org/10.1016/j.earscirev.2013.09.004
Noce, C.M., Pedrosa-Soares, A.C., Piuzana, D., Armstrong, R., Laux, J.H., Campos, C.M. & Medeiros, S.R. 2004, ‘Ages of sedimentation of the kinzigitic complex and of alate orogenic thermal episode in the Araçuaí orogen Northern Espírito Santo State, Brazil: Zircon and monazite U-P SHRIMP and ID-TIMS data’, Revista Brasileira de Geociências, vol. 34, pp. 587-592.
Pedrosa-Soares, A.C., Noce, C.M., Wiedemann, C.M. & Pinto, C.P. 2001, ‘The Araçuaí- West-Congo Orogen in Brazil: an overview of a confined orogen formed during Gondwanaland assembly’, Precambrian Research, vol. 110 (1-4), pp. 307-323, DOI:10.1016/S0301-9268(01)00174-7. https://doi.org/10.1016/S0301-9268(01)00174-7
Pedrosa-Soares, A.C., Noce, C.M., Alkmim, F.F., da Silva, L.C., Babinski, M., Cordani, U. & Castañeda, C. 2007, ‘Orógeno Araçuaí: Síntese do conhecimento 30 anos após Almeida 1977’, Geonomos, vol. 15, pp. 1-16, DOI:10.18285/geonomos.v15i1.103. https://doi.org/10.18285/geonomos.v15i1.103
Pedrosa-Soares, A.C., De Campos, C.P., Noce, C., Silva, L.C., Novo, T., Roncato, J., Medeiros, S., Castañeda, C., Queiroga, G., Dantas, E., Dussin, I. & Alkmim, F. 2011, ‘Late Neoproterozoic - Cambrian Granitic Magmatism in the Araçuaí orogen (Brazil), the Eastern Brazilian Pegmatite Province and Related Mineral Resources’, Geological Society, London, Special Publications , vol. 350, pp. 25-51, DOI:10.1144/SP350.3. https://doi.org/10.1144/SP350.3
Pedrosa-Soares, A.C., Deluca, C., Araujo, C., Gradim, C., Lana, C., Dussin, I., Silva, L.C. & Babinski, M. 2020, ‘O Orógeno Araçuaí à luz da geocronologia: um tributo a Umberto Cordani’, in A., Bartorelli, W., Teixeira, B.B., Brito Neves (eds), Geocronologia e Evolução Tectônica do Continente Sul-Americano: a contribuição de Umberto Giuseppe Cordani, Solarias Edições Culturais, São Paulo.
Potratz, G.L., Geraldes, M.C., Medeiros Júnior, E.B., Temporim, F.A. & Martins, M.V.A. 2022, ‘A Juvenile Component in the Pre- and Post-Collisional Magmatism in the Transition Zone between the Araçuaí and Ribeira Orogens (SE Brazil)’, Minerals, vol. 12, pp. 1-22, DOI:10.3390/min12111378. https://doi.org/10.3390/min12111378
Queiroga, G.N., Pedrosa-Soares, A.C., Noce, C.M., Alkmim, F.F., Pimentel, M.M., Dantas, E.L., Martins, M., Castañeda, C., Suita, M.T.F. & Prichard, H. 2007, ‘Age of the Ribeirão da Folha ophiolite, Araçuaí Orogen: the U-Pb zircon (LA-ICPMS) dating of a plagiogranite’, Geonomos, vol. 15, no. 1, pp. 61-65, DOI:10.18285/geonomos. v15i1.107. https://doi.org/10.18285/geonomos. v15i1.107
Richter, F., Lana, C., Stevens, G., Buick, I., Pedrosa-Soares, A.C., Alkmim, F.F. & Cutts, K. 2016, ‘Sedimentation, metamorphism and granite generation in a back-arc region: records from the Ediacaran nova Venécia Complex (Araçuaí orogen, southeastern Brazil)’, Precambrian Research, vol. 272, pp. 78-100, DOI:10.1016/j.precamres.2015.10.012. https://doi.org/10.1016/j.precamres.2015.10.012
Sami, M., Ntaflos, T., Farahat, E.S., Mohamed, H.A., Hauzenberger, C. & Ahmed, A.F. 2018, ‘Petrogenesis and geodynamic implications of Ediacaran highly fractionated A- type granitoids in the north Arabian-Nubian Shield (Egypt): constraints from whole- rock geochemistry and Sr-Nd isotopes’, Lithos, vol. 304-307, pp. 329-346, DOI:10.1016/j.lithos.2018.02.015. https://doi.org/10.1016/j.lithos.2018.02.015
Santiago, R., Caxito, F.A., Pedrosa-Soares, A., Neves, M.A. & Dantas, E.L. 2020, ‘Tonian island. Arc remnants in the northern Ribeira orogen of western Gondwana: the Caxixe batholith (Espírito Santo, SE Brazil)’, Precambrian Research, vol. 351, DOI:10.1016/j.precamres.105944. https://doi.org/10.1016/j.precamres.105944
Santiago, R., Caxito, F.A., Pedrosa-Soares, A., Neves, M.A., Calegari, S.S. & Lana, C. 2022, ‘Detrital zircon U-Pb and Lu-Hf constraints on the age, provenance and tectonic setting of arc-related high-grade units of the transition zone of the Araçuaí and Ribeira orogens (SE Brazil)’, Journal of South American Earth Science, vol. 116, 103861, DOI:10.1016/j.jsames.2022.103861. https://doi.org/10.1016/j.jsames.2022.103861
Santiago, R., Caxito, F.A., Pedrosa-Soares, A., Neves, M.A., Dantas, E.L., Calegari, S.S. & Lana, C. 2023, ‘Records of the accretionary, collisional and post-collisional evolution of western Gondwana in the high-grade core of the Araçuaí-Ribeira orogenic system, SE Brazil’, Precambrian Research, vol. 397, 107191, DOI:10.1016/j.precamres.2023.107191. https://doi.org/10.1016/j.precamres.2023.107191
Schmitt, R.S., Trouw, R.A.J., Van Schmus, W.R. & Pimentel, M.M. 2004, ‘Late amalgamation in the central part of West Gondwana: new geochronological data and the characterization of a Cambrian collisional orogeny in the Ribeira Belt (SE Brazil)’, Precambrian Research, vol. 133, pp. 29-61, DOI:10.1016/j.precamres.2004.03.010. https://doi.org/10.1016/j.precamres.2004.03.010
Sengor, A.M.C., Ozeren, M.S., Keskin, M., Sakinç, M., Ozbakir, A.D. & Kayan, I. 2008, ‘Eastern Turkish high plateau as a small Turkic-type orogen: Implications for post-collisional crust-forming processes in Turkic-type orogens’, Earth-Science Reviews, vol. 90, pp. 1-48, DOI:10.1016/j.earscirev.2008.05.002
https://doi.org/10.1016/j.earscirev.2008.05.002
Serrano, P., Pedrosa-Soares, A., Medeiros-Júnior, E., Fonte-Boa, T., Araujo, C., Dussin, I., Queiroga, G. & Lana, C. 2018, ‘A-type Medina batholith and post-collisional anatexis in the Araçuaí orogen (SE Brazil)’, Lithos, vol. 320- 321, pp. 515-536, DOI:10.1016/j.lithos.2018.09.009. https://doi.org/10.1016/j.lithos.2018.09.009
Soares, C., Queiroga, G., Pedrosa-Soares, A., Gouvêa, L.P., Valeriano, C.M., de Melo, M. G. & Delicio, R. 2020, ‘The Ediacaran Rio Doce magmatic arc in the Araçuaí-Ribeira boundary sector, southeast Brazil: Lithochemistry and isotopic (Sm-Nd and Sr) signatures’, Journal of South American Earth Science, vol. 104, 102880, DOI:10.1016/j.jsames.2020.102880. https://doi.org/10.1016/j.jsames.2020.102880
Song, S.G., Wang, M.J., Wang, C. & Niu, Y.L. 2015, ‘Magmatism during continental collision, subduction, exhumation and mountain collapse in collisional orogenic belts and continental net growth: A perspective’, China- Earth Science, vol. 58, pp. 1284-1304, DOI:10.1007/s11430-015-5102-x. https://doi.org/10.1007/s11430-015-5102-x
Sousa, C.S., Conceição, H., Soares, H.K., Fernandes, D.M. & Rosa, M.L.S. 2022, ‘Magmatic processes recorded in plagioclase crystals of the Rio Jacaré Batholith, Sergipano Orogenic System, Northeast Brazil’, Journal of South American Earth Science, vol. 118, 103942, DOI:10.1016/j.jsames.2022.103942. https://doi.org/10.1016/j.jsames.2022.103942
Streckeisen, F., 1976, ‘Plutonic rocks, classification and nomenclature recommended by the IUGS subcommission on the Systematics of igneous Rocks’, Geotimes, pp. 26-30, DOI:10.1007/BF01820841
» https://doi.org/10.1007/BF01820841
Tedeschi, M., Novo, T., Pedrosa-Soares, A., Dussin, I., Tassinari, C., Silva, L.C., Gonçalves, L., Alkmim, F., Lana, C., Figueiredo, C., Dantas, E., Medeiros, S., De Campos, C., Corrales, F. & Heilbron, M. 2016, ‘The Ediacaran Rio Doce magmatic arc revisited (Araçuaí-Ribeira orogenic system, SE Brazil)’, Journal of South American Earth Science, vol. 68, pp. 167-186, DOI:10.1016/j.jsames.2015.11.011. https://doi.org/10.1016/j.jsames.2015.11.011
Teixeira, P.A.D., Fernandes, C.M., Mendes, J.C., Medeiros, S.R. & Rocha, I.S.A. 2020, ‘U-Pb LA-ICP-MS and geochemical data of the Alto Chapéu Pluton: contributions on bimodal post-collisional magmatism in the Araçuaí belt (SE Brazil)’, Journal of South American Earth Science, vol. 103, pp. 1-18, DOI:10.1016/j.jsames.2011.03.003. https://doi.org/10.1016/j.jsames.2011.03.003
Valeriano, C.M., Tupinambá, M., Simonetti, A., Heilbron, M., Almeida, J.C.H. & Eiraldo, L.G. 2011, ‘U-Pb LA- MC-ICPMS geochronology of Cambro-Ordovician post-collisional granites of the Ribeira belt, southeast Brazil: Terminal Brasiliano magmatism in central Gondwana supercontinent’, Journal of South American Earth Science, vol. 32, pp. 416-428, DOI:10.1016/j.jsames.2011.03.003. https://doi.org/10.1016/j.jsames.2011.03.003
Valeriano, C.M., Mendes, J.C., Tupinambá, M., Bongiolo, E., Heilbron, M. & Junho, M.C.B. 2016, ‘Cambro- Ordovician post-collisional granites of the Ribeira Belt, SE-Brazil: a case of terminal magmatism of a hot orogen’, Journal of South American Earth Science, vol. 68, pp. 416-428, DOI:10.1016/j.jsames.2015.12.014. https://doi.org/10.1016/j.jsames.2015.12.014
Vieira, V.S. 2015, ‘Geologia e Recursos Minerais do Estado do Espírito Santo: texto explicativo do mapa geológico e de recursos minerais. Geologia e Recursos Minerais do Estado do Espírito Santo: texto explicativo do mapa geológico e de recursos minerais’, CPRM, Belo Horizonte.
Wang, M., Song, S., Niu, Y & Su, L. 2014, ‘Post-collisional magmatism: Consequences of UHPM terrane exhumation and orogen collapse, N. Qaidam UHPM belt, NWChina’, Lithos, vol. 210-211, pp. 181-198, DOI:10.1016/j.lithos.2014.10.006. https://doi.org/10.1016/j.lithos.2014.10.006
Wilson, J.T. 1966, ‘Did the Atlantic close and re-open?’, Nature, vol. 211, pp. 676-681
Whitney, D.L. & Evans, B.W. 2010, ‘Abbreviations for names of rock-forming minerals’, American Mineral. 95, 185-187, DOI:10.2138/am.2010.3371. https://doi.org/10.2138/am.2010.3371
Wiedemann, C.M., Medeiros, S.R., Ludka, I.P., Mendes, J.C. & Costa-de-Moura, J. 2002, ‘Architecture of late orogenic plutons in the Araçuaí-Ribeira fold belt, southeast Brazil’, Gondwana Research, vol. 5, pp. 381-399, DOI:10.1016/S1342-937X(05)70730-9. https://doi.org/10.1016/S1342-937X(05)70730-9
Wisniowski, L., Pedrosa-Soares, A. C., Medeiros-Junior, E., Belém, J., Dussin, I. & Queiroga, G. 2021, ‘Ultra- high temperature, mid-crustal level, contact metamorphism imprinted on granulite facies paragneisses by a norite intrusion (São Gabriel da Baunilha, Araçuaí orogen, southeast Brazil)’, Journal of Metamorphic Geology, vol. 39 (7), pp. 867-895, DOI:10.1111/jmg.12594. https://doi.org/10.1111/jmg.12594
Yang, Q.Y., Ganguly, S., Shaji, E., Dong, Y. & Kumar, V.N. 2019, ‘Extensional collapse of the Gondwana orogen: Evidence from Cambrian mafic magmatism in the Trivandrum Block, southern India’, Geoscience Frontiers, pp. 263-284, DOI:10.1016/j.gsf.2017.12.002. https://doi.org/10.1016/j.gsf.2017.12.002
Zanon, M. L., Chaves, A.O., Rangel, C.V.G. T., Gaburo, L. & Pires, C. R. 2015, ‘Os aspectos geológicos do Maciço Santa Angélica (ES): uma nova abordagem’, Brazilian Journal of Geology, vol. 45, no. 4, pp. 609-63, DOI:10.1590/2317-4889201520150005. https://doi.org/10.1590/2317-4889201520150005
Zhang, J., Wang, T., Castro, A., Zhang, L., Shi, X., Tong, Y., Zhang, Z., Guo, L., Yang, Q. & Iaccheri, L.M. 2016, ‘Multiple Mixing and Hybridization from Magma Source to Final Emplacement in the Permian Yamatu Pluton, the Northern Alxa Block, China’, Journal of Petrology, vol. 57, no. 5, pp. 933-980, DOI: 10.1093/petrology/egw028. https://doi.org/10.1093/petrology/egw028
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution 4.0 International License.
This journal is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
