Thermochemical sulfate reduction in fossil Ordovician deposits of the Majiang area: Evidence from a molecular-marker investigation
The main reservoirs of Majiang fossil deposits consist of the Silurian Wengxiang group, dominantly sandstones, and the Ordovician Honghuayuan formation, dominantly carbonate rocks, and the Lower Cambrian Niutitang Formation mudstones serve as the major source rocks. Thermochemical sulfate reduction...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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Science in China Press/Zhongguo Kexue Zazhishe
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/6675 |
| _version_ | 1848745145720111104 |
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| author | Wang, Guangli Li, N. Gao, B. Li, X. Shi, S. Wang, T. |
| author_facet | Wang, Guangli Li, N. Gao, B. Li, X. Shi, S. Wang, T. |
| author_sort | Wang, Guangli |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The main reservoirs of Majiang fossil deposits consist of the Silurian Wengxiang group, dominantly sandstones, and the Ordovician Honghuayuan formation, dominantly carbonate rocks, and the Lower Cambrian Niutitang Formation mudstones serve as the major source rocks. Thermochemical sulfate reduction (TSR) might have taken place in the Paleozoic marine carbonate oil pools, as indicated by high concentrations of dibenzothiophenes in the extracts (MDBT=0.27-4.32 µg/g extract, and MDBT/MPH= 0.71-1.38). Hydrocarbons in the Pojiaozhai Ordovician carbonate reservoirs have undergone severe TSR and are characterized by higher quantities of diamondoids and MDBT and heavier isotopic values (δ13C=-28.4‰). The very large amounts of dibenzothiophenes might be products of reactions between biphenyls and sulfur species associated with TSR. |
| first_indexed | 2025-11-14T06:12:42Z |
| format | Journal Article |
| id | curtin-20.500.11937-6675 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:12:42Z |
| publishDate | 2013 |
| publisher | Science in China Press/Zhongguo Kexue Zazhishe |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-66752017-09-13T14:35:05Z Thermochemical sulfate reduction in fossil Ordovician deposits of the Majiang area: Evidence from a molecular-marker investigation Wang, Guangli Li, N. Gao, B. Li, X. Shi, S. Wang, T. solid bitumen dibenzothiophene adamantane maturation thermochemical sulfate reduction (TSR) comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry (GC×GC/TOFMS) The main reservoirs of Majiang fossil deposits consist of the Silurian Wengxiang group, dominantly sandstones, and the Ordovician Honghuayuan formation, dominantly carbonate rocks, and the Lower Cambrian Niutitang Formation mudstones serve as the major source rocks. Thermochemical sulfate reduction (TSR) might have taken place in the Paleozoic marine carbonate oil pools, as indicated by high concentrations of dibenzothiophenes in the extracts (MDBT=0.27-4.32 µg/g extract, and MDBT/MPH= 0.71-1.38). Hydrocarbons in the Pojiaozhai Ordovician carbonate reservoirs have undergone severe TSR and are characterized by higher quantities of diamondoids and MDBT and heavier isotopic values (δ13C=-28.4‰). The very large amounts of dibenzothiophenes might be products of reactions between biphenyls and sulfur species associated with TSR. 2013 Journal Article http://hdl.handle.net/20.500.11937/6675 10.1007/s11434-013-5843-x Science in China Press/Zhongguo Kexue Zazhishe fulltext |
| spellingShingle | solid bitumen dibenzothiophene adamantane maturation thermochemical sulfate reduction (TSR) comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry (GC×GC/TOFMS) Wang, Guangli Li, N. Gao, B. Li, X. Shi, S. Wang, T. Thermochemical sulfate reduction in fossil Ordovician deposits of the Majiang area: Evidence from a molecular-marker investigation |
| title | Thermochemical sulfate reduction in fossil Ordovician deposits of the Majiang area: Evidence from a molecular-marker investigation |
| title_full | Thermochemical sulfate reduction in fossil Ordovician deposits of the Majiang area: Evidence from a molecular-marker investigation |
| title_fullStr | Thermochemical sulfate reduction in fossil Ordovician deposits of the Majiang area: Evidence from a molecular-marker investigation |
| title_full_unstemmed | Thermochemical sulfate reduction in fossil Ordovician deposits of the Majiang area: Evidence from a molecular-marker investigation |
| title_short | Thermochemical sulfate reduction in fossil Ordovician deposits of the Majiang area: Evidence from a molecular-marker investigation |
| title_sort | thermochemical sulfate reduction in fossil ordovician deposits of the majiang area: evidence from a molecular-marker investigation |
| topic | solid bitumen dibenzothiophene adamantane maturation thermochemical sulfate reduction (TSR) comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry (GC×GC/TOFMS) |
| url | http://hdl.handle.net/20.500.11937/6675 |