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Reinterpretación paleoambiental de la Formación Río Bonito (Pérmico de la Cuenca de Paraná) en el yacimiento de carbón de Iruí, Río Grande do Sul, Brasil: Integración de análisis de facies, icnología y estratigrafía secuencial de alta resolución

2000; Issue: 29 Linguagem: Inglês

2173-6545

Luís A. Buatois, Fernando Gama de Miranda Netto, M. Gabriela Mángano,

Paleontology and Stratigraphy of Fossils

The Permian Rio Bonito Formation of the Parana Basin, southern Brazil, has been traditionally interpreted in terms of a fluvio-dominated deltaic model. Integration of facies analysis, ichnology, and high-resolution sequence stratigraphy suggests that this unit represents deposition in a tide-dominated, fluvio-estuarine valley system. The overlying Palermo Formation records deposition in open-marine environments