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Dissolution rates of crystalline basalt at pH 4 and 10 and 25-75°C

Published online by Cambridge University Press:  05 July 2018

S. Gudbrandsson ,
D. Wolff-Boenisch ,
S. R. Gíslason  and
E. H. Oelkers
S. Gudbrandsson*
Affiliation:
Institute of Earth Science, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland
D. Wolff-Boenisch
Affiliation:
Institute of Earth Science, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland
S. R. Gíslason
Affiliation:
Institute of Earth Science, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland
E. H. Oelkers
Affiliation:
Institute of Earth Science, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland
*
*E-mail: [email protected]
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Abstract

Far-from-equilibrium dissolution rates of crystalline basalt were measured in a mixed-flow reactor at pH 4 and 10, and at temperatures from 25 to 75ºC. The material used was obtained from a dyke on Stapafell Mountain on Reykjanes peninsula in Iceland because of its similarity with previous experiments on dissolution rates on basaltic glass by Oelkers and Gislason (2001) and Gislason and Oelkers (2003). Comparison of dissolution rates of basaltic glass and of crystalline basalt of similar chemical composition (from Gislason and Oelkers, 2003) indicates lower rates for crystalline material.

Type
Research Article
Information
Mineralogical Magazine , Volume 72 , Issue 1 , February 2008 , pp. 155 - 158
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2008

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