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Effects on global warming by microbial methanogenesis in alkaline lakes during the Late Paleozoic Ice Age (LPIA)
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dc.contributor.author | Xia, Liuwen | |
dc.contributor.author | Cao, Jian | |
dc.contributor.author | Hu, Wenxuan | |
dc.contributor.author | Stüeken, Eva E. | |
dc.contributor.author | Wang, Xiaolin | |
dc.contributor.author | Yao, Suping | |
dc.contributor.author | Zhi, Dongming | |
dc.contributor.author | Tang, Yong | |
dc.contributor.author | Xiang, Baoli | |
dc.contributor.author | He, Wenjun | |
dc.date.accessioned | 2023-08-15T13:30:01Z | |
dc.date.available | 2023-08-15T13:30:01Z | |
dc.date.issued | 2023-10-01 | |
dc.identifier | 292465196 | |
dc.identifier | 721a11c1-d5a2-49f2-8c6b-eef4394bcea0 | |
dc.identifier | 85172902657 | |
dc.identifier.citation | Xia , L , Cao , J , Hu , W , Stüeken , E E , Wang , X , Yao , S , Zhi , D , Tang , Y , Xiang , B & He , W 2023 , ' Effects on global warming by microbial methanogenesis in alkaline lakes during the Late Paleozoic Ice Age (LPIA) ' , Geology , vol. 51 , no. 10 , pp. 935-940 . https://doi.org/10.1130/g51286.1 | en |
dc.identifier.issn | 0091-7613 | |
dc.identifier.other | Jisc: 1252817 | |
dc.identifier.other | ORCID: /0000-0001-6861-2490/work/140830326 | |
dc.identifier.uri | https://hdl.handle.net/10023/28177 | |
dc.description | Funding: This work was jointly funded by the National Natural Science Foundation of China (Grant Nos . 42230808, 42203055 and 41830425) and PetroChina Science and Technology Major project (Grant No. 20 21DJ0108). | en |
dc.description.abstract | Methane (CH4) is an important greenhouse gas, but its behavior and influencing factors over geological time scales are not sufficiently clear. This study investigated the Late Paleozoic Ice Age (LPIA), which is thought to have experienced an interval of rapid warming at ca. 304 Ma, that may have been analogous to modern warming. To explore possible causes of this warming event, we investigated ancient alkaline lakes in the Junggar Basin, northwestern China. Results show that microbial CH4 cycling here was strong, as evidenced by carbonate δ13C (δ13Ccarb) values of >5‰, ∼+0.6‰ offsets between pristane δ13C (δ13CPr) and phytane δ13C (δ13CPh) values, a 3β-methylhopane index of 9.5% ± 3.0%, and highly negative δ13C values of hopanes (−44‰ to −61‰). Low sulfate concentrations in the alkaline lakes made methanogenic archaea more competitive than sulfate-reducing bacteria, and the elevated levels of dissolved inorganic carbon promoted methanogenesis. Biogenic CH4 emissions from alkaline lakes, in addition to CO2, may have contributed to rapid climate warming. | |
dc.format.extent | 6 | |
dc.format.extent | 2508751 | |
dc.format.extent | 1402755 | |
dc.language.iso | eng | |
dc.relation.ispartof | Geology | en |
dc.subject | QE Geology | en |
dc.subject | NDAS | en |
dc.subject | SDG 13 - Climate Action | en |
dc.subject | MCC | en |
dc.subject.lcc | QE | en |
dc.title | Effects on global warming by microbial methanogenesis in alkaline lakes during the Late Paleozoic Ice Age (LPIA) | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Earth & Environmental Sciences | en |
dc.contributor.institution | University of St Andrews. St Andrews Centre for Exoplanet Science | en |
dc.identifier.doi | 10.1130/g51286.1 | |
dc.description.status | Peer reviewed | en |
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