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Paleo-Wildfires and Their Paleoclimatic Effects in Early Permian Coal in the Southern North China Basin
[Image: see text] Paleo-wildfires can help elucidate the transition trends of Earth from “icehouse” to “greenhouse,” thereby allowing us to forecast the current changes associated with wildfires of this era. In this study, the early Permian Shanxi Formation in the Pingdingshan coalfield, located sou...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10339330/ https://www.ncbi.nlm.nih.gov/pubmed/37457456 http://dx.doi.org/10.1021/acsomega.3c00127 |
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author | Gao, Di Guo, Huiling Wang, Juan Shi, Yi Chen, Di |
author_facet | Gao, Di Guo, Huiling Wang, Juan Shi, Yi Chen, Di |
author_sort | Gao, Di |
collection | PubMed |
description | [Image: see text] Paleo-wildfires can help elucidate the transition trends of Earth from “icehouse” to “greenhouse,” thereby allowing us to forecast the current changes associated with wildfires of this era. In this study, the early Permian Shanxi Formation in the Pingdingshan coalfield, located south of the North China Basin, was selected as a study site. Based on data on inertinite content, inertinite reflectance, nine polycyclic aromatic hydrocarbons (PAHs), paleo-wildfires, and their paleoclimate effect during the early Permian coal formation were systematically analyzed. The inertinite content in coal in the study area ranged from 9.76 to 29.65%, with an average of 19.32%. Meanwhile, the average inertinite reflectance values ranged from 2.41–4.74%, with an average of 2.75%. PAHs in the study area were mainly tricyclic and tetracyclic; the contents of fluorene, phenanthrene, pyrene, bypyrene, benzo[b]fluoranthene, and benzo[e]pyrene were higher than those of other PAHs in the same stratum. The total concentration of PAHs varied widely between layers (3601–21,894 ng/g). The presence of paleo-wildfires was confirmed by the contents of inertinite and PAHs. It can be concluded that paleo-wildfires in the study area were dominated by surface fires at low and medium temperatures based on the combustion equation. The oxygen content in the paleo-atmosphere of the Early Permian Shanxi Formation in the study area was 24.29%, which provided the necessary conditions for the occurrence of wildfires. |
format | Online Article Text |
id | pubmed-10339330 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-103393302023-07-14 Paleo-Wildfires and Their Paleoclimatic Effects in Early Permian Coal in the Southern North China Basin Gao, Di Guo, Huiling Wang, Juan Shi, Yi Chen, Di ACS Omega [Image: see text] Paleo-wildfires can help elucidate the transition trends of Earth from “icehouse” to “greenhouse,” thereby allowing us to forecast the current changes associated with wildfires of this era. In this study, the early Permian Shanxi Formation in the Pingdingshan coalfield, located south of the North China Basin, was selected as a study site. Based on data on inertinite content, inertinite reflectance, nine polycyclic aromatic hydrocarbons (PAHs), paleo-wildfires, and their paleoclimate effect during the early Permian coal formation were systematically analyzed. The inertinite content in coal in the study area ranged from 9.76 to 29.65%, with an average of 19.32%. Meanwhile, the average inertinite reflectance values ranged from 2.41–4.74%, with an average of 2.75%. PAHs in the study area were mainly tricyclic and tetracyclic; the contents of fluorene, phenanthrene, pyrene, bypyrene, benzo[b]fluoranthene, and benzo[e]pyrene were higher than those of other PAHs in the same stratum. The total concentration of PAHs varied widely between layers (3601–21,894 ng/g). The presence of paleo-wildfires was confirmed by the contents of inertinite and PAHs. It can be concluded that paleo-wildfires in the study area were dominated by surface fires at low and medium temperatures based on the combustion equation. The oxygen content in the paleo-atmosphere of the Early Permian Shanxi Formation in the study area was 24.29%, which provided the necessary conditions for the occurrence of wildfires. American Chemical Society 2023-06-26 /pmc/articles/PMC10339330/ /pubmed/37457456 http://dx.doi.org/10.1021/acsomega.3c00127 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Gao, Di Guo, Huiling Wang, Juan Shi, Yi Chen, Di Paleo-Wildfires and Their Paleoclimatic Effects in Early Permian Coal in the Southern North China Basin |
title | Paleo-Wildfires
and Their Paleoclimatic Effects in
Early Permian Coal in the Southern North China Basin |
title_full | Paleo-Wildfires
and Their Paleoclimatic Effects in
Early Permian Coal in the Southern North China Basin |
title_fullStr | Paleo-Wildfires
and Their Paleoclimatic Effects in
Early Permian Coal in the Southern North China Basin |
title_full_unstemmed | Paleo-Wildfires
and Their Paleoclimatic Effects in
Early Permian Coal in the Southern North China Basin |
title_short | Paleo-Wildfires
and Their Paleoclimatic Effects in
Early Permian Coal in the Southern North China Basin |
title_sort | paleo-wildfires
and their paleoclimatic effects in
early permian coal in the southern north china basin |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10339330/ https://www.ncbi.nlm.nih.gov/pubmed/37457456 http://dx.doi.org/10.1021/acsomega.3c00127 |
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