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4. RESULTS: LABORATORY EXPERIMENT

The ratio of K+/SiO2 illustrate the rapid initial release of K+ with respect to silica. After two weeks this ratio decrease by a factor of 100.

This result is important in illustrating the solute release behavior in a tuff sample with a known mechanical disaggregation history, and with no possible organic source of K+.

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The ratio of K+/SiO2 decreases by a factor of 100 in about 16 days.

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Last modified: Thursday, 16-July-98 15:50:14 MST