Point of zero charge of weathered forsterite |
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| Authors: | RW Luce GA Parks |
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| Institution: | 1. U.S. Geological Survey, Menlo Park, Calif. U.S.A.;2. Department of Applied Earth Sciences, Stanford University, Stanford, Calif. U.S.A. |
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| Abstract: | The point of zero charge of forsterite shifts from an estimated 8.9 for the unaltered mineral to 8.4 and 8.0, respectively, after being weathered artificially for 1 h and 4 h. These results corroborate the presence of magnesium-deficient surfaces on the weathered minerals, also indicated by chemical analyses of the solutions. H+ and OH? are shown to be potential-determining ions in this system |
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