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Book Chapter

The Partitioning of Strontium between Anhydrite and Aqueous Solutions from 150° to 250°C

By
Naotatsu Shikazono
Naotatsu Shikazono
Geological Institute, The University of Tokyo, Bunkyo-ku, Hongo, Tokyo 113, Japan
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Heinrich D. Holland
Heinrich D. Holland
Department of Geological Sciences, Harvard University, Cambridge, Massachusetts 02138
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Published:
January 01, 1983

Abstract

The partitioning of strontium between anhydrite and mixtures of seawater with NaCl solutions has been studied experimentally. Anhydrite was precipitated by heating mixtures of seawater and NaCl solutions to temperatures between 150° and 250°C. It was found that the partition coefficient of Sr in this system depends less on the NaCl concentration, temperature, and precipitation rate than on the degree of supersaturation of the solutions with respect to anhydrite and/or the morphology of the precipitated anhydrite crystals. Acicular anhydrite was precipitated from solutions with a relatively high degree of supersaturation; rectangular anhydrite was precipitated from solutions with low degrees of supersaturation. The partition coefficient of Sr between solutions and rectangular anhydrite at 150°, 200°, and 250°C is 0.35 ± 0.05, 0.24 ± 0.05, and 0.27 ± 0.05, respectively.

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Contents

Economic Geology Monograph Series

The Kuroko and Related Volcanogenic Massive Sulfide Deposits

Hiroshi Ohmoto
Hiroshi Ohmoto
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Brian J. Skinner
Brian J. Skinner
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Society of Economic Geologists
Volume
5
ISBN electronic:
9781629490007
Publication date:
January 01, 1983

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