Particulate iron and other trace elements in near-surface waters of the high latitude North Atlantic following the 2010 Eyjafjallajökull eruption
Particulate iron and other trace elements in near-surface waters of the high latitude North Atlantic following the 2010 Eyjafjallajökull eruption
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2010 年埃亚菲亚德拉冰盖喷发后北大西洋高纬度近地表水域的颗粒铁和其他微量元素
DOI：
10.1016/j.marchem.2021.103959
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发表时间：
2021
期刊：
影响因子：
3
通讯作者：
Marsay C
中科院分区：
文献类型：
--
作者：
Marsay C
在2010年春季和夏季期间，使用原位泵从北大西洋高纬度上层海洋收集粒度分级颗粒（>53 μm和1-53 μm），随后分析样品中的Al、P、Ti、V、Mn、Fe、Co、Ni、Cu、Zn、Cd、Ba和Pb。2010年5月的两次研究航行恰逢冰岛南部埃亚菲亚德拉火山爆发，火山灰在该地区广泛散布。火山灰沉积引起了显着的扰动颗粒微量元素浓度和含量在冰岛盆地的海洋颗粒，相对于Irminger盆地，最明显的成岩元素（铝，钛，铁），但也明显的元素比为其他元素。到2010年7月/8月第三次研究航行时，最初的火山灰影响已基本消失，但有证据表明，最近的一次风蚀事件在7月初将重新活动的火山灰从冰岛南部运到了冰岛盆地北方，进一步扰乱了当地的微量元素地球化学。2010年夏季，除Ba外，所有测量元素的浓度通常低于表面混合层以下10 m，主要是由于大的（>53 μm）生物颗粒浓度的快速下降。深度依赖的趋势是更多的变量在未来的百米的所有元素，除了生源元素P和Cd，浓度进一步下降。由于矿化（反映颗粒P浓度）的生物源材料与深度的持续损失导致的所有其他元素测量的每质量材料的含量增加。在上层海洋颗粒P和Fe分布的观察到的差异突出的机制，驱动季节性铁限制在高纬度北大西洋：快速损失的P通过矿化再生溶解磷酸盐接近混合层的基础，而大多数颗粒Fe坚持在更深的水柱，去除溶解Fe再供应到表面沃茨的潜力。
In situpumps were used to collect size-fractionated particles (>53 μm and 1–53 μm) from the upper ocean of the high latitude North Atlantic during spring and summer 2010, and samples were subsequently analysed for Al, P, Ti, V, Mn, Fe, Co, Ni, Cu, Zn, Cd, Ba and Pb. Two research cruises during May 2010 coincided with an eruption of the Eyjafjallajökull volcano in southern Iceland, which resulted in widespread dispersal of ash over the region. Ash deposition caused a noticeable perturbation of particulate trace element concentrations and content within marine particles in the Iceland Basin, relative to the Irminger Basin, most evident for lithogenic elements (Al, Ti, Fe), but also noticeable in elemental ratios for the other elements. The initial volcanic ash influence had largely disappeared by the third research cruise in July/August 2010, although there was evidence for a recent wind erosion event having transported remobilized volcanic ash from southern Iceland to the northern Iceland Basin in early July, further perturbing local trace element biogeochemistry. During summer 2010, concentrations of all measured elements except Ba were typically lower 10 m beneath the surface mixed layer relative to those within it, driven primarily by a rapid decrease in the concentrations of large (>53 μm) biogenic particles. Depth-dependent trends were more variable over the next hundred metres for all elements except the biogenic elements P and Cd, for which concentrations decreased further. The continued loss of biogenic material with depth due to remineralization (reflected by particulate P concentrations) led to an increase in content per mass of material for all other elements measured. The observed differences in upper ocean particulate P and Fe distributions highlight the mechanism driving seasonal Fe limitation in the high latitude North Atlantic: rapid loss of P by remineralization regenerates dissolved phosphate close to the base of the mixed layer, while most particulate Fe persists deeper in the water column, removing the potential for resupply of dissolved Fe to surface waters.
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来自大西洋 CLIVAR-CO2 重复水文学 A16N 样线的高分辨率 Al 和 Fe 数据：大气尘埃与上层海洋地球化学之间的广泛联系
影响因子：
5.2
作者：
C. Measures;W. Landing;Matthew T. Brown;C. Buck
通讯作者：
C. Buck
使用扇形磁感应耦合等离子体质谱法测定海洋颗粒材料中微量元素的现代采样和分析方法。
影响因子：
6.2
作者：
A. Bowie;A. Townsend;D. Lannuzel;T. Remenyi;P. van der Merwe
通讯作者：
P. van der Merwe
DOI：
10.4319/lom.2012.10.367
发表时间：
2012-05
期刊：
Limnology and Oceanography: Methods
影响因子：
--
作者：
H. Planquette;R. Sherrell
通讯作者：
H. Planquette;R. Sherrell
北大西洋和拉布拉多海中的铝（GEOTRACES GA01 部分）：大陆输入和生物颗粒去除的作用
影响因子：
4.9
作者：
Jan‐Lukas Menzel Barraqueta;C. Schlosser;H. Planquette;Arthur Gourain;M. Cheize;Julia Boutorh;R. Shelley;L. Contreira Pereira;M. Gledhill;M. Hopwood;F. Lacan;P. Lherminier;G. Sarthou;E. Achterberg
通讯作者：
E. Achterberg
再生通量和清除通量之间的相互作用驱动海洋铁循环
影响因子：
16.6
作者：
A. Tagliabue;A. Bowie;T. DeVries;M. Ellwood;W. Landing;A. Milne;D. Ohnemus;B. Twining;P. Boyd
通讯作者：
P. Boyd