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[OLD] Reacting basaltic glass


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From: Nick Tosca

Subject: reacting basaltic glass

I am currently running experiments involving basaltic glass dissolution and am wondering what the best way is to express a glass in GWB to equilibrate with a variety of solutions.


From: Craig Bethke

Subject: Re: reacting basaltic glass

There are two ways to simulate the reaction of basalt with aqueous solutions. First, you can set as reactants the minerals that make up the basalt, and titrate them into the fluid. Or you can set oxides as reactants. The first method is useful when you wish to account for dissolution at rates that vary among the minerals -- i.e., non-congruent dissolution of the rock. The second can be convenient since it allows you to use a bulk analysis directly, and to account for any glass fraction implicitly.

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