Mn, Ni, Cu, Zn and Cd in the Western North Atlantic
Mn, Ni, Cu, Zn and Cd in the Western North Atlantic
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北大西洋西部的锰、镍、铜、锌和镉
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
R. Franks
中科院分区：
文献类型：
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作者：
K. Bruland;R. Franks
已测定北大西洋西部表层和深层水样本中锰、镍、铜、锌和镉的浓度。将单个垂直剖面的结果与北太平洋公布的结果进行比较，并根据两个海洋的水文学特征进行解释。镉、锌和镍在两个海洋中都有营养物类型分布。它们在地表水中耗尽，在温跃层上迅速增加，然后随着深度的增加仅略有增加或减少。北大西洋深水1至3公里处的Cd、Zn和Ni平均浓度分别为0.29、1.5和5.7 nmol kg−1；值远低于北太平洋相似深度 0.94、8.2 和 10.4 nmol kg−1 的相应值。两个海洋中的铜浓度随着深度的增加而逐渐增加，北大西洋深水（1 至 3 公里）的平均值为 1.7 nmol kg−1，而北太平洋类似深度的 Cu 浓度为 2.7 nmol kg−1。锰浓度随着温跃层深度的增加而降低，北大西洋深处的锰浓度约为 0.6 nmol kg−1。
The concentrations of Mn, Ni, Cu, Zn and Cd have been determined on surface and deep water samples from the western North Atlantic. The results from a single vertical profile are compared to published results from the North Pacific and interpreted with respect to the hydrographie characteristics of both oceans. Cd, Zn and Ni have nutrient-type distributions in both oceans. They are depleted in surface waters, increase rapidly across the thermocline, then increase or decrease only slightly with depth. The North Atlantic deep waters at depths of 1 to 3 km have average concentrations of Cd, Zn and Ni equal to 0.29, 1.5 and 5.7 nmol kg−1, respectively; values substantially lower than their corresponding values in the North Pacific at similar depths of 0.94, 8.2 and 10.4 nmol kg−1. Cu concentrations increase gradually with depth in both oceans, with a North Atlantic deep water (1 to 3 km) average value of 1.7 nmol kg−1 relative to 2.7 nmol kg−1 at similar depths in the North Pacific. Mn concentrations decrease with depth through the thermocline with deep North Atlantic values on the order of 0.6 nmol kg−1.