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DOI | 10.1002/2017GL074609 |
Changes in Fe Oxidation Rate in Hydrothermal Plumes as a Potential Driver of Enhanced Hydrothermal Input to Near-Ridge Sediments During Glacial Terminations | |
Cullen, J. T.; Coogan, L. A. | |
2017-12-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:23 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Recent studies have hypothesized that changes in sea level due to glacial-interglacial cycles lead to changes in the rate of melt addition to the crust at mid-ocean ridges with globally significant consequences. Arguably the most compelling evidence for this comes from increases in the hydrothermal component in near-ridge sediments during glacial-interglacial transitions. Here we explore the hypothesis that changes in ocean bottom water [O-2] and pH across glacial-interglacial transitions would lead to changes in the rate of Fe oxidation in hydrothermal plumes. A simple model shows that a several fold increase in the rate of Fe oxidation is expected at glacial-interglacial transitions. Uncertainty in bottom water chemistry and the relationship between oxidation and sedimentation rates prevent direct comparison of the model and data. However, it appears that the null hypothesis of invariant hydrothermal vent fluxes into ocean bottom water that changed in O-2 content and pH across these transitions cannot currently be discounted. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419102400031 |
WOS关键词 | EAST PACIFIC RISE ; OCEAN-ATMOSPHERE REORGANIZATIONS ; CARBON-DIOXIDE ; METALLIFEROUS SEDIMENTS ; DISSOLVED IRON ; BORON ISOTOPES ; SOUTHERN-OCEAN ; CO2 EMISSIONS ; INDIAN-OCEAN ; CYCLES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29131 |
专题 | 气候变化 |
作者单位 | Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC, Canada |
推荐引用方式 GB/T 7714 | Cullen, J. T.,Coogan, L. A.. Changes in Fe Oxidation Rate in Hydrothermal Plumes as a Potential Driver of Enhanced Hydrothermal Input to Near-Ridge Sediments During Glacial Terminations[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(23). |
APA | Cullen, J. T.,&Coogan, L. A..(2017).Changes in Fe Oxidation Rate in Hydrothermal Plumes as a Potential Driver of Enhanced Hydrothermal Input to Near-Ridge Sediments During Glacial Terminations.GEOPHYSICAL RESEARCH LETTERS,44(23). |
MLA | Cullen, J. T.,et al."Changes in Fe Oxidation Rate in Hydrothermal Plumes as a Potential Driver of Enhanced Hydrothermal Input to Near-Ridge Sediments During Glacial Terminations".GEOPHYSICAL RESEARCH LETTERS 44.23(2017). |
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