Calibrando la transición ediacárico-cámbrica en Gondwana suddoccidental

L. V. Warren; E. Tohver; L. Inglez; J. Okubo; C. Riccomini; S. Xiao

doi:10.3989/egeol.43593.573

Autores/as

L. V. Warren Department of Applied Geology, Institute of Geosciences and Exact Sciences, São Paulo State University (Unesp) https://orcid.org/0000-0002-2050-6514
E. Tohver Institute of Astronomy and Geophysics, São Paulo University (USP) https://orcid.org/0000-0002-3333-0917
L. Inglez Department of Applied Geology, Institute of Geosciences and Exact Sciences, São Paulo State University (Unesp) https://orcid.org/0000-0002-2815-8788
J. Okubo Department of Applied Geology, Institute of Geosciences and Exact Sciences, São Paulo State University (Unesp) https://orcid.org/0000-0001-9160-9994
C. Riccomini Institute of Energy and Enviroment, São Paulo University (USP), https://orcid.org/0000-0002-7249-5706
S. Xiao Department of Geosciences, Virginia Tech https://orcid.org/0000-0003-4655-2663

DOI:

https://doi.org/10.3989/egeol.43593.573

Palabras clave:

Grupo de Itapucumi, Edades SHRIMP, Zircones detríticos y volcánicos, Asociación tipo Nama, Tránsito Ediacárico-Cámbrico, SO Gondwana

Resumen

Los datos paleontológicos, isotópicos y geocronológicos que se resumen a continuación apoyan la correlación paleogeográfica y cronológica entre los Grupos de Itapucumi (Paraguay) y Corumbá (Brasil), sugiriendo una evolución sedimentaria contemporánea entre estas unidades en los márgenes del Cratón Amazónico y del Bloque del Río Apa.

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Citas

Cordani, U.G.; Teixeira, W.; Tassinari, C.C.G.; Coutinho, J.M.V. & Ruiz, A.S. (2010). The Rio Apa Craton in Mato Grosso do Sul (Brazil) and northern Paraguay: Geochronological Evolution, Correlations and Tectonic Implications for Rodinia and Gondwana. American Journal of Science, 310: 981-1023. https://doi.org/10.2475/09.2010.09

Linnemann, U.; Ovtcharova, M.; Schaltegger, U.; Gärtner, A.; Hautmann, M.; Geyer, G.; Vickers-Rich, P.; Rich, T.; Plessen, B.; Hofmann, M.; Zieger, J.; Krause, R.; Kriesfeld, L. & Smith, J. (2019). New high-resolution age data from the Ediacaran-Cambrian boundary indicate rapid, ecologically driven onset of the Cambrian explosion. Terra Nova, 31: 49-58. https://doi.org/10.1111/ter.12368

Tohver, E.; Trindade, R.I.F.; Solum, J.G.; Hall, C.M.; Riccomini, C. & Nogueira, A.C. (2010). Closing the Clymene Ocean and bending a Brasiliano belt: Evidence for the Cambrian formation of Gondwana, southeast Amazon craton. Geology, 38 (3): 267-270. https://doi.org/10.1130/G30510.1

Warren, L.V.; Quaglio, F.; Simões, M.G.; Gaucher, C.; Riccomini, C.; Poiré, D.G.; Freitas, B.T.; Boggiani, P.C. & Sial, A.N. (2017). Cloudina-Corumbella-Namacalathus association from the Itapucumi Group, Paraguay: increasing ecosystem complexity and tiering at the end of the Ediacaran. Precambrian Research, 298: 79-87. https://doi.org/10.1016/j.precamres.2017.05.003

Warren, L.V.; Freitas, B.T.; Riccomini, C.; Boggiani, P.C.; Quaglio, F.; Simões, M.G.; Fairchild, T.R.; Giorgioni, M.; Gaucher, C.; Poiré, D.G.; Cáceres, A.A. & Sial A.N. (2018). Sedimentary evolution and tectonic setting of the Itapucumi Group, Ediacaran, northern Paraguay: from Rodinia break-up to West Gondwana amalgamation. Precambrian Research, 322: 99-212. https://doi.org/10.1016/j.precamres.2018.12.022