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Rui Xie, Daidai Wu, Jie Liu, Guangrong Jin, Tiantian Sun, Lihua Liu, Nengyou Wu. The influence of coupling mode of methane leakage and debris input on anaerobic oxidation of methane[J]. Acta Oceanologica Sinica.
Citation: Rui Xie, Daidai Wu, Jie Liu, Guangrong Jin, Tiantian Sun, Lihua Liu, Nengyou Wu. The influence of coupling mode of methane leakage and debris input on anaerobic oxidation of methane[J]. Acta Oceanologica Sinica.

The influence of coupling mode of methane leakage and debris input on anaerobic oxidation of methane

Funds:  The Guangdong Basic and Applied Basic Research Fund Project under contract No. 2021A1515011509; the Municipal Science and Technology Program of Guangzhou under contract No. 201904010311; the Special Project for Marine Economy Development of Guangdong Province under contract No. GDME-2018D002.
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  • Anaerobic oxidation of methane (AOM) is an important biogeochemical process, which has important scientific significance for global climate change and atmospheric evolution. This research examined the δ34S, terrigenous clastic indices of TiO2 and Al2O3, and times for formation of the Ba front at sites SH1, site SH3 and 973-4 in the South China Sea. Three different coupling mechanisms of deposition rate and methane flux were discovered. The different coupling mechanisms had different effects on the role of AOM. At site 973-4, a high deposition rate caused a rapid vertical downward migration of the sulphate–methane transition zone (SMTZ), and the higher input resulted in mineral dissolution. At site SH3, the deposition rate and methane flux were basically in balance, so the SMTZ and paleo-SMTZ were the most stable of any site, and these were in a slow process of migration. At site SH1, the methane flux dominated the coupled mode, so the movement of the SMTZ at SH1 was consistent with the general understanding. Understanding the factors influencing the SMTZ is important for understanding the early diagenesis process.
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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