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Charcoal remains from a tonstein layer in the Faxinal Coalfield, Lower Permian, southern Paraná Basin, Brazil Anais da ABC (AABC)
Jasper,André; Uhl,Dieter; Guerra-Sommer,Margot; Abu Hamad,Abdalla M. B; Machado,Neli T. G.
Fossil charcoal has been discovered in the Faxinal Coalfield, Early Permian, Rio Bonito Formation, in the southernmost portion of the Paraná Basin, Brazil. Three types of pycnoxylic gymnosperm woods recovered from a single tonstein layer are described and confirm the occurrence of paleowildfire in this area. A decrease of the charcoal concentration from the base to the top within the tonstein layer indicates that the amount of fuel declined during the deposition probably due to the consumption of vegetation by the fire. The presence of inertinite in coals overlying and underlying the tonstein layer indicates that fire-events were not restricted to the ash fall interval. The integration of the new data presented in the current study with previously...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Charcoal; Gymnosperms; Volcanic ashes; Coal deposits; Gondwana; Late Palaeozoic.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000200009
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