Terrestrial pyrite oxidation point to carbon cycle: Insights from sulfur and oxygen isotope composition in rivers
文献类型：期刊论文
| 作者 | Hu, Huiying2,4; Zhao, Changqiu2,4; Xu, Sen1; Wei, Rongfei2; Wei, Qiang2; Tan, Qiyu3; Guo, Qingjun2 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2025-04-01 |
| 卷号 | 650页码:132406 |
| 关键词 | Sulfur isotopes Oxygen isotopes Pyrite oxidation Riverine sulfates Bayesian isotope mixing model Carbon cycle |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2024.132406 |
| 产权排序 | 1 |
| 文献子类 | Review |
| 英文摘要 | Pyrite oxidation coupled with carbonate weathering can be a source of carbon dioxide (CO2) to the atmosphere over geological timescales. However, this source of CO2 is an important but not entirely understood component of the long-term carbon cycle. The exact identification of the riverine sulfate sources and terrestrial pyrite weathering flux is crucial for a quantitative understanding of this source, but still faces great challenges. Sulfur and oxygen isotope ratios are widely used to constrain sulfate sources. Here we reviewed the effect of pyrite oxidation on the carbon cycle and synthesized sulfur isotope and oxygen isotope data for global rivers. Moreover, the flux of riverine sulfate due to pyrite oxidation in different global rivers are calculated separately using a Bayesian model based on sulfur and oxygen isotope ratios in riverine sulfates and local end elements. The highest pyrite-derived sulfate fluxes were found in the Mississippi River (198.3 +/- 37.8 Gmol year-1). Higher pyrite oxidation rates occurred in areas with higher runoff rates, and global climate change may have also affected pyrite oxidation rates. This may assist in re-evaluating the role of chemical weathering on the carbon cycle and improve the theory of the carbon cycle. |
| URL标识 | 查看原文 |
| WOS关键词 | SULFIDE OXIDATION ; CO2 DRAWDOWN ; WEATHERING PROCESSES ; SULFATE REDUCTION ; DISSOLVED SULFATE ; ATMOSPHERIC CO2 ; ORGANIC-CARBON ; SILICATE ; BASIN ; CLIMATE |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001392873500001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/211255]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Guo, Qingjun |
| 作者单位 | 1.Tianjin Univ, Inst Surface Earth Syst Sci, Sch Earth Syst Sci, Tianjin 300072, Peoples R China; 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China; 3.Yunnan Univ, Kunming 650091, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Hu, Huiying,Zhao, Changqiu,Xu, Sen,et al. Terrestrial pyrite oxidation point to carbon cycle: Insights from sulfur and oxygen isotope composition in rivers[J]. JOURNAL OF HYDROLOGY,2025,650:132406. |
| APA | Hu, Huiying.,Zhao, Changqiu.,Xu, Sen.,Wei, Rongfei.,Wei, Qiang.,...&Guo, Qingjun.(2025).Terrestrial pyrite oxidation point to carbon cycle: Insights from sulfur and oxygen isotope composition in rivers.JOURNAL OF HYDROLOGY,650,132406. |
| MLA | Hu, Huiying,et al."Terrestrial pyrite oxidation point to carbon cycle: Insights from sulfur and oxygen isotope composition in rivers".JOURNAL OF HYDROLOGY 650(2025):132406. |
入库方式： OAI收割
来源：地理科学与资源研究所
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