The significance of oxygen as oxides and hydroxides in controlling the abundance and residence times of elements in seawater

Kumar, M. D. (1983) The significance of oxygen as oxides and hydroxides in controlling the abundance and residence times of elements in seawater Marine Chemistry, 14 (2). pp. 121-131. ISSN 0304-4203

Full text not available from this repository.

Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0304-4203(83)90035-X

Abstract

A model is presented which signifies the role of oxygen (as oxides and hydroxides) in controlling the composition of seawater. Using the regression equations log KSW=−0.77+0.03ΔO2-M and [M]SW=KSW[M]crust log t̅=4.73+0.04ΔO2-M respective concentration and residence times for the unknown elements can be estimated. Geometric and statistical indices of Legget and Williams (1981) are used to evaluate the accuracy of the model. This reveals from the known values of ΔO2-M that the present model estimates log t̅y values within a factor of 1.77. The predicted oceanic residence times for Am, Ir, Ra and Rh are 3.6 x 102, 3.7 x 102, 2.2 x 105 and 6.4 x 102 years, respectively.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:81606
Deposited On:07 Feb 2012 05:15
Last Modified:07 Feb 2012 05:15

Repository Staff Only: item control page