Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL073315 |
On the early fate of hydrothermal iron at deep-sea vents: A reassessment after in situ filtration | |
Waeles, M.1; Cotte, L.1,2; Pernet-Coudrier, B.1; Chavagnac, V.3; Cathalot, C.4; Leleu, T.3; Laes-Huon, A.5; Perhirin, A.2; Riso, R. D.1; Sarradin, P-M.2 | |
2017-05-16 | |
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:9 |
文章类型 | Article |
语种 | 英语 |
国家 | France |
英文摘要 | Deep-sea hydrothermal venting is now recognized as a major source of iron (Fe), an essential trace element that controls marine productivity. However, the reactions occurring during dispersal from buoyant plumes to neutrally buoyant hydrothermal plumes are still poorly constrained. Here we report for the first time on the dissolved-particulate partition of Fe after in situ filtration at the early stage of mixing at different hydrothermal discharges, i.e., Lucky Strike (37 degrees N), TAG (26 degrees N), and Snakepit (23 degrees N) on the Mid-Atlantic Ridge. We found that hydrothermal iron is almost completely preserved (>90%) in the dissolved fraction, arguing for low iron-bearing sulfide precipitation of iron in basalt-hosted systems with low Fe:H2S ratios. This result can only be explained by a kinetically limited formation of pyrite. The small part of Fe being precipitated as sulfides in the mixing gradient (<10%) is restricted to the inclusion of Fe in minerals of high Cu and Zn content. We also show that secondary venting is a source of Fe-depleted hydrothermal solutions. These results provide new constrains on Fe fluxes from hydrothermal venting. |
英文关键词 | hydrothermal iron sulfide venting filtration precipitation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402143700032 |
WOS关键词 | MID-ATLANTIC RIDGE ; EAST PACIFIC RISE ; DISSOLVED IRON ; OCEAN ; FE ; PLUMES ; SULFIDE ; METALS ; PYRITE ; MECHANISMS |
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/29168 |
专题 | 气候变化 |
作者单位 | 1.Univ Bretagne Occidental, LEMAR UMR CNRS 6539, IUEM, Plouzane, France; 2.IFREMER, Environm Profond DEEP REM, ZI Pointe Diable, Plouzane, France; 3.Univ Toulouse, Lab Geosci Environm Toulouse, GET UMR CNRS 5563, Toulouse, France; 4.IFREMER, Geochim & Metallogenie GM REM, Plouzane, France; 5.IFREMER, Lab Detect Capteurs & Mesures REM RDT, Plouzane, France |
推荐引用方式 GB/T 7714 | Waeles, M.,Cotte, L.,Pernet-Coudrier, B.,et al. On the early fate of hydrothermal iron at deep-sea vents: A reassessment after in situ filtration[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(9). |
APA | Waeles, M..,Cotte, L..,Pernet-Coudrier, B..,Chavagnac, V..,Cathalot, C..,...&Sarradin, P-M..(2017).On the early fate of hydrothermal iron at deep-sea vents: A reassessment after in situ filtration.GEOPHYSICAL RESEARCH LETTERS,44(9). |
MLA | Waeles, M.,et al."On the early fate of hydrothermal iron at deep-sea vents: A reassessment after in situ filtration".GEOPHYSICAL RESEARCH LETTERS 44.9(2017). |
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