Palynology of Bonito and Barro Branco coal seams from Rio Bonito Formation (Lower Permian of Paraná Basin) in the Criciúma coal region, southernmost Brazil. (April 2019)

• Record Type: Journal Article
• Authors: Pereira, Z.; Mendes, M.; Souza, P.A.; Rodrigues, C.; Fernandes, P.; Ade, M.; Araújo, C.; Almeida, J.R.L.; Santos, E.M.; Rocha, H.V.; Santos, V.E.S.; Araújo, B.P.; Garavaglia, L.; Lemos de Sousa, M.J.
• Is Part Of: Journal of South American earth sciences. Volume 91(2019)
• Page Start: 27
• Page End: 35
• Publication Date: 2019-04
• Subjects: Spores -- Pollen -- Palynostratigraphy -- Cisuralian -- Criciúma coal seams -- Brazil; Geology -- Latin America -- Periodicals; Earth sciences -- Latin America -- Periodicals; Geology -- Antarctica -- Periodicals; Earth sciences -- Antarctica -- Periodicals; Geology -- Caribbean Area -- Periodicals; Earth sciences -- Caribbean Area -- Periodicals; Géologie -- Amérique latine -- Périodiques; Sciences de la terre -- Amérique latine -- Périodiques; Géologie -- Antarctique -- Périodiques; Sciences de la terre -- Antarctique -- Périodiques; Géologie -- Caraïbes (Région) -- Périodiques; Sciences de la terre -- Caraïbes (Région) -- Périodiques; Earth sciences; Geology; Antarctica; Caribbean Area; Latin America; Periodicals; 550.5
• DOI: 10.1016/j.jsames.2019.01.009
• Languages: English
• ISSNs: 0895-9811

Abstract

Abstract: Seven coal seams were sampled from several mines and outcrops of the Rio Bonito Formation, Bonito and Barro Branco coal seams, in the coal mining region of Criciúma, Paraná Basin, Santa Catarina State (Brazil), for a detailed palynostratigraphic study. The coal seams sampled yield abundant, diverse and moderately to well preserved palynological assemblages. A total of twenty-seven spore species, fourteen pollen species and four microplanktonic or clorophyceae algae and fungi species were identified. The palyno-assemblages recovered in the Bonito and Barro Branco coal seams are assigned to the Vittatina costabilis Interval Zone, Protohaploxypinus goraiensis Subzone of the Paraná Basin, of Asselian? to Artinskian age (Lower Permian). The microflora assemblages identified in these coal seams are very similar in composition, presenting a dominance of arborescent and herbaceous lycophytes. The Barro Branco coal seam shows a relatively higher frequency of algae like composition than in the Bonito coal seam, suggesting a possible fluvial or lagoonal facies influence. Highlights: Palynostratigraphy of Rio Bonito Fm., Bonito and Barro Branco coal seams, Paraná Basin, Santa Catarina State, Brazil. Palynological data and events interpretation through Paraná Basin. Palyno-assemblages palaeoenvironmental interpretation.