当前位置: X-MOL 学术J. Mar. Syst. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Particulate trace metal fluxes in the center of an oceanic desert: Northeast Atlantic subtropical gyre
Journal of Marine Systems ( IF 2.8 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.jmarsys.2020.103447
Judith Pullwer , Joanna J. Waniek

Abstract For this study particle flux material collected over 13 years period starting in February 2002 until summer 2015 with the long-term mooring Kiel 276 (33°N, 22°W) in the subtropical Northeast Atlantic was analyzed. Our focus was set on the elemental composition and trace element fluxes which we analyzed with the help of ICP-OES and ICP-MS. The particle flux has a mean of 60 mg m−2 d−1 (range: 1–365 mg m−2 d−1) with peak fluxes during February and April shortly after the winter bloom. Especially in 2004 high fluxes occurred through the year when the Azores Front was located south of the mooring. In this year enhanced nutrient supply and high dust concentration in the atmosphere were measured. The analyzed trace elements of Cd, Co, Cr, Cu, Ni, V, Zn, Zr, and Mn have mean fluxes of 43.4 μg Cd m−2 d−1, 205.7 μg Co m−2 d−1, 1.4 μg Cr m−2 d−1, 3.2 μg Cu m−2 d−1, 1.6 μg Ni m−2 d−1, 1.0 μg V m−2 d−1, 5.1 μg Zn m−2 d−1, 1.3 μg Zr m−2 d−1, and 7.8 μg Mn m−2 d−1. Biogenic trace elements (Cd, Zn, Ni) show maximum fluxes in winter and spring while no seasonality was present for refractory (Zr) and redox-sensitive elements (V, Mn, Co). Fe, Ti, Co, Mn, V, Mn, and Zr are only little enriched towards the upper continental crust (EF

中文翻译:

海洋沙漠中心的微粒微量金属通量:东北大西洋亚热带环流

摘要 在这项研究中,分析了从 2002 年 2 月到 2015 年夏季长期停泊在亚热带东北大西洋的基尔 276(33°N,22°W)的 13 年期间收集的粒子通量材料。我们的重点是在 ICP-OES 和 ICP-MS 的帮助下分析的元素组成和痕量元素通量。粒子通量的平均值为 60 mg m-2 d-1(范围:1-365 mg m-2 d-1),在冬季开花后不久的 2 月和 4 月达到峰值通量。特别是在 2004 年,当亚速尔群岛锋位于系泊以南时,这一年发生了高通量。今年,大气中养分供应增加,粉尘浓度升高。分析的 Cd、Co、Cr、Cu、Ni、V、Zn、Zr 和 Mn 的微量元素的平均通量为 43.4 μg Cd m-2 d-1、205.7 μg Co m-2 d-1、1.4 μg Cr m−2 d−1, 3。2 μg Cu m-2 d-1, 1.6 μg Ni m-2 d-1, 1.0 μg V m-2 d-1, 5.1 μg Zn m-2 d-1, 1.3 μg Zr m-2 d-1,和 7.8 μg Mn m-2 d-1。生物微量元素(Cd、Zn、Ni)在冬季和春季显示出最大通量,而耐火元素(Zr)和氧化还原敏感元素(V、Mn、Co)则没有季节性。Fe、Ti、Co、Mn、V、Mn 和 Zr 仅在上大陆地壳(EF
更新日期:2020-12-01
down
wechat
bug