Significance of polycyclic aromatic hydrocarbons (PAHs) in Permian/Triassic boundary sections
In this study the abundances of several polycyclic aromatic hydrocarbons (PAHs Table 1, I-XXI) havebeen measured throughout three Permian/Triassic (P/Tr) sections from Meishan (South China), Kap Stosch area (East Greenland) and Peace River Basin (Western Canada). Dibenzothiophene (I) and dibenzofura...
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| Format: | Journal Article |
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Elsevier
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/44087 |
| _version_ | 1848756897110294528 |
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| author | Nabbefeld, Birgit Grice, Kliti Summons, R Hays, L Cao, C |
| author_facet | Nabbefeld, Birgit Grice, Kliti Summons, R Hays, L Cao, C |
| author_sort | Nabbefeld, Birgit |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this study the abundances of several polycyclic aromatic hydrocarbons (PAHs Table 1, I-XXI) havebeen measured throughout three Permian/Triassic (P/Tr) sections from Meishan (South China), Kap Stosch area (East Greenland) and Peace River Basin (Western Canada). Dibenzothiophene (I) and dibenzofuran (II) were found to decrease in abundance just before or shortly after the P/Tr transition in all three sections while perylene (III) was observed to increase in abundance at the onset of the main extinction horizon (bed 25) in Meishan. Perylene has been attributed to a wood degrading fungal source and, therefore, it seems possible these phenomena are related to the demise of land plants. Further, distinct patterns of various combustion-derived PAHs occurring in each section imply that forest fire events occurred within the Late Permian and Early Triassic. In the Meishan section high amounts of combustion- derived PAHs [pyrene (IV), fluoranthene (V), benzo[a]anthracene (VI), benzofluoranthenes (sum, i.e. VII), benzo[a]pyrene (VIII), benzo[e]pyrene (IX) and coronene (X)] occur within bed 25, also containing ash attributed to the fallout from massive volcanic eruptions in Siberia and/or China. |
| first_indexed | 2025-11-14T09:19:29Z |
| format | Journal Article |
| id | curtin-20.500.11937-44087 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:19:29Z |
| publishDate | 2010 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-440872017-09-13T15:58:25Z Significance of polycyclic aromatic hydrocarbons (PAHs) in Permian/Triassic boundary sections Nabbefeld, Birgit Grice, Kliti Summons, R Hays, L Cao, C PAHs polycyclic aromatic hydrocarbons permian/triassic boundary sections In this study the abundances of several polycyclic aromatic hydrocarbons (PAHs Table 1, I-XXI) havebeen measured throughout three Permian/Triassic (P/Tr) sections from Meishan (South China), Kap Stosch area (East Greenland) and Peace River Basin (Western Canada). Dibenzothiophene (I) and dibenzofuran (II) were found to decrease in abundance just before or shortly after the P/Tr transition in all three sections while perylene (III) was observed to increase in abundance at the onset of the main extinction horizon (bed 25) in Meishan. Perylene has been attributed to a wood degrading fungal source and, therefore, it seems possible these phenomena are related to the demise of land plants. Further, distinct patterns of various combustion-derived PAHs occurring in each section imply that forest fire events occurred within the Late Permian and Early Triassic. In the Meishan section high amounts of combustion- derived PAHs [pyrene (IV), fluoranthene (V), benzo[a]anthracene (VI), benzofluoranthenes (sum, i.e. VII), benzo[a]pyrene (VIII), benzo[e]pyrene (IX) and coronene (X)] occur within bed 25, also containing ash attributed to the fallout from massive volcanic eruptions in Siberia and/or China. 2010 Journal Article http://hdl.handle.net/20.500.11937/44087 10.1016/j.apgeochem.2010.06.008 Elsevier restricted |
| spellingShingle | PAHs polycyclic aromatic hydrocarbons permian/triassic boundary sections Nabbefeld, Birgit Grice, Kliti Summons, R Hays, L Cao, C Significance of polycyclic aromatic hydrocarbons (PAHs) in Permian/Triassic boundary sections |
| title | Significance of polycyclic aromatic hydrocarbons (PAHs) in Permian/Triassic boundary sections |
| title_full | Significance of polycyclic aromatic hydrocarbons (PAHs) in Permian/Triassic boundary sections |
| title_fullStr | Significance of polycyclic aromatic hydrocarbons (PAHs) in Permian/Triassic boundary sections |
| title_full_unstemmed | Significance of polycyclic aromatic hydrocarbons (PAHs) in Permian/Triassic boundary sections |
| title_short | Significance of polycyclic aromatic hydrocarbons (PAHs) in Permian/Triassic boundary sections |
| title_sort | significance of polycyclic aromatic hydrocarbons (pahs) in permian/triassic boundary sections |
| topic | PAHs polycyclic aromatic hydrocarbons permian/triassic boundary sections |
| url | http://hdl.handle.net/20.500.11937/44087 |