Diffusion of ions in sea water and in deep-sea sediments
Diffusion of ions in sea water and in deep-sea sediments
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DOI：
10.1016/0016-7037(74)90145-8
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发表时间：
1974-05
影响因子：
5
通讯作者：
Yuan-hui Li;S. Gregory
中科院分区：
文献类型：
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作者：
Yuan-hui Li;S. Gregory
离子在水中的示踪剂扩散系数Dj 0和在海水中的示踪剂扩散系数Dj 0相差不超过0 - 8%。当海水扩散到稀水溶液中时，为了保持电中性，主要阳离子的平均扩散系数变大，而主要阴离子的平均扩散系数小于它们各自的Dj 0或Dj 0值。离子在深海沉积物中的示踪扩散系数，Dj，sed。可以通过D j，sed与D j相关。Dj θ· α θ 2，式中θ为整体沉积物的弯曲度，是一个接近1的常数。
The tracer-diffusion coefficient of ions in water, D j 0, and in sea water, D j∗, differ by no more than zero to 8 per cent. When sea water diffuses into a dilute solution of water, in order to maintain the electro-neutrality, the average diffusion coefficients of major cations become greater but of major anions smaller than their respective D j∗ or D j 0 values. The tracer diffusion coefficients of ions in deep-sea sediments, D j, sed., can be related to D j∗ by D j, sed.= D j∗· α θ 2, where θ is the tortuosity of the bulk sediment and aa constant close to one.