| DOI: | 10.1038/s41561-020-0579-0
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| 论文题名: | Impacts of hydrothermal plume processes on oceanic metal cycles and transport |
| 作者: | Gartman A.; Findlay A.J.
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| 刊名: | Nature Geoscience
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| ISSN: | 17520894
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| 出版年: | 2020
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| 卷: | 13, 期:6 | | 起始页码: | 396
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| 结束页码: | 402
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| 语种: | 英语
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| 英文关键词: | global ocean
; hydrothermal plume
; hydrothermal vent
; metal
; ocean
; oxidation
; transport process
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| 英文摘要: | Chemical, physical and biological processes in hydrothermal plumes control the flux of elements from hydrothermal vents to the global oceans. The timescales of these processes range from less than a second, as the hydrothermal fluid mixes with seawater at the seafloor, to decades, as the plume disperses over thousands of kilometres. Integrating hydrothermal geochemistry throughout the lifetime of the plume reveals some well-constrained processes, along with many surprises. For instance, contrary to the idea that metals are removed from the hydrothermal plume via oxidation, a survey of recent datasets reveals that oxidation of iron and manganese does not consistently result in their removal from the plume, and that manganese may be lost from the water column more rapidly than iron. These observations suggest that our understanding of element transport in hydrothermal plumes is incomplete, partly due to the change in removal processes as the plume disperses from less than 1 km from the vent to more than 4,000 km. We suggest that characterizing the plume on the basis of regions that retain some reduced components versus those that are fully oxidized, in addition to buoyancy, will illuminate the nature of the dominant processes and allow a more complete understanding of the ultimate fate of hydrothermally derived metals. © 2020, Springer Nature Limited. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/169599
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| Appears in Collections: | 气候变化与战略
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作者单位: | US Geological Survey, Santa Cruz, CA, United States; Center for Geomicrobiology, Department of Bioscience, Aarhus University, Aarhus, Denmark
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| Recommended Citation: | |
Gartman A.,Findlay A.J.. Impacts of hydrothermal plume processes on oceanic metal cycles and transport[J]. Nature Geoscience,2020-01-01,13(6)
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