Palaeobotanical evidence of wildfires in the Late Palaeozoic of South America – Early Permian, Rio Bonito Formation, Paraná Basin, Rio Grande do Sul, Brazil

Jasper, André; Uhl, Dieter; Guerra-Sommer, Margót; Mosbrugger, Volker

doi:10.1016/j.jsames.2008.08.002

Cited by 41 publications

(31 citation statements)

References 40 publications

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“…Anatomical features of the macroscopic charcoal, in some cases presenting multiseriate, alternating areolate pitting (up to 5-seriate), are clearly distinguished from the maximum triseriate pattern found in Cisuralian charcoals described from the Paraná Basin (Jasper et al, 2008(Jasper et al, , 2011a(Jasper et al, , 2011b(Jasper et al, , 2013Degani-Schmidt et al, 2015). This feature could suggest a different taxonomic affinity but the absence of information about cross field pits in the studied samples do not allow a definitive generic identification.…”

Section: Resultsmentioning

confidence: 70%

“…Falcon, 1989;Hunt, 1989;Taylor et al, 1989) and a continuing debate about this topic in recent literature (e.g. Hower et al, 2011;Richardson et al, 2012), increasingly reports of macroscopic charcoal were made in the last few years for that area and age (Glasspool, 2000;Uhl et al, 2007;Jasper et al, 2008Jasper et al, , 2011aJasper et al, , 2011bJasper et al, , 2012 A C C E P T E D M A N U S C R I P T…”

Section: Introductionmentioning

confidence: 99%

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Extending the database of Permian palaeo-wildfire on Gondwana: Charcoal remains from the Rio do Rasto Formation (Paraná Basin), Middle Permian, Rio Grande do Sul State, Brazil

Manfroi

Uhl

Guerra-Sommer

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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Section: Resultsmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Extending the database of Permian palaeo-wildfire on Gondwana: Charcoal remains from the Rio do Rasto Formation (Paraná Basin), Middle Permian, Rio Grande do Sul State, Brazil

Manfroi

Uhl

Guerra-Sommer

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…In this study, Jasper et al (2008) demonstrated that the charcoalified remains from Quitéria were related to basic types of gymnosperm wood and fragments of lycopsids. They also inferred that potential sources of ignition for wildfires in the studied area could have been volcanic activities in the nearby areas.…”

Section: Introductionmentioning

confidence: 60%

Charcoal remains from a tonstein layer in the Faxinal Coalfield, Lower Permian, southern Paraná Basin, Brazil

Jasper

Uhl

Guerra-Sommer

et al. 2011

An. Acad. Bras. Ciênc.

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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 published data for the Faxinal Coalfield demonstrates that volcanic events that occurred in the surrounding areas can be identified as one potential source of ignition for the wildfires. The presence of charcoal in Permian sediments associated with coal levels at different localities demonstrates that wildfires have been relatively common events in the peat-forming environments in which the coal formation took place in the Paraná Basin.

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“…However, recent studies revealed that charcoal is present in many Permian localities (e.g. Wang and Chen, 2001;Noll et al, 2003;Uhl and Kerp, 2003;Uhl et al, 2004Uhl et al, , 2007DiMichele et al, 2004;Jasper et al, 2008;Scott, 2010), although much less abundant than in many Carboniferous localities (e.g. Scott, 2000) and also geochemical models reconstructed high atmospheric oxygen concentrations during the Permian (e.g.…”

Section: 'Palaeoatmospheric' Considerationsmentioning

confidence: 99%

Charcoal as evidence of palaeo‐wildfires in the Late Triassic of SW Germany

Uhl

Montenari

2010

Geological Journal

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So far only very few reports deal with Triassic (especially macro-or mesofossil) charcoal in detail. Here we present the first results of a detailed study of fossil charcoal from Late Triassic sandstones of the Tübingen Sandstein (Exter-Formation, Rhaetian) in the vicinity of Tübingen in SW Germany. The discovery of charcoal at this locality can be regarded as direct evidence of wildfires in the hinterland of the Rhaetian sea and all charcoal fragments studied so far represent gymnosperm woods. At the moment nothing can be stated about the frequency and extent of such fires, although the occurrence of charcoal in different sandstone-bodies points to more than one fire event. The charcoal content of the marginal marine deposit probably represents a larger region and not only the vegetation in the direct vicinity of the shore. A considerable amount of transport is indicated by abrasion of some of the charcoal fragments and the taphonomic sorting, leading to the selected accumulation of woody fragments. Some charcoal fragments are permineralized by goethite and we assume that in this case the goethite is the primary permineralization agent. Our data support the assumption that during the Late Triassic atmospheric oxygen concentrations were high enough to sustain larger wildfires.

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Palaeobotanical evidence of wildfires in the Late Palaeozoic of South America – Early Permian, Rio Bonito Formation, Paraná Basin, Rio Grande do Sul, Brazil

Cited by 41 publications

References 40 publications

Extending the database of Permian palaeo-wildfire on Gondwana: Charcoal remains from the Rio do Rasto Formation (Paraná Basin), Middle Permian, Rio Grande do Sul State, Brazil

Extending the database of Permian palaeo-wildfire on Gondwana: Charcoal remains from the Rio do Rasto Formation (Paraná Basin), Middle Permian, Rio Grande do Sul State, Brazil

Charcoal remains from a tonstein layer in the Faxinal Coalfield, Lower Permian, southern Paraná Basin, Brazil

Charcoal as evidence of palaeo‐wildfires in the Late Triassic of SW Germany

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