Wildfire evidence from the Middle and Late Permian Hanxing Coalfield, North China Basin
Xiao, Lin (Hebei University of Engineering (Handan, Xina))
Zhao, Qiaojing (Hebei University of Engineering (Handan, Xina))
Wang, Jinxi (Hebei University of Engineering (Handan, Xina))
Mishra, Vivek (Hebei University of Engineering (Handan, Xina))
Arbuzov, Sergey (University Tomsk. Department of Geology and Geochemistry (Tomsk, Rússia))
Zhang, Minmin (Hebei University of Engineering (Handan, Xina))

Date:	2020
Abstract:	Earth has a long geological history and palaeo-wildfire is one of the key factors which is responsible for the evolution and extinction of our earth systems. Thus, it is important to establish the history in order to gain more understanding about Permian-Triassic mass extinction. It is also related to the carbon cycle of the earth in which the whole life system depends. The objective of this paper is to evaluate the product of wildfire in terms of distribution and occurrences from the Late Permian North China basin. Hence, fourteen (14) rock samples were collected from a drill core of Hanxing Coalfield of North China basin. The samples were analyzed by macro and micro petrography, scanning electron microscopy (SEM), gas chromatography (GC), and gas chromatography-mass spectrometry (GC-MS) in order to study the evidence of wildfire. Charcoal (inertinite) particles are observed in the samples, which established the occurrences of wildfire during the Upper Middle and Late Permian time in North China. Additionally, high-molecular-weight polycyclic aromatic hydrocarbons (PAHs) were detected in the studied samples which also reinforce the presence of palaeo - wildfire events in the North China basin in Late Permian due to the fact that the these aromatic compounds were formed under high temperatures.
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Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	Geologica acta, Vol. 18 (2020) , p. 1-11 (Articles) , ISSN 1696-5728

Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/373211
Adreça alternativa: https://revistes.ub.edu/index.php/GEOACTA/article/view/GeologicaActa2020.18.12
DOI: 10.1344/GeologicaActa2020.18.12

11 p, 3.1 MB

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