Computer Science
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987gecoa..51.1285i&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 51, Issue 5, pp.1285-1295
Computer Science
3
Scientific paper
Soil interstitial waters and minerals were collected and analyzed to evaluate the influence of acid deposition on Al chemistry in the soil environment of the Green Lakes Valley Front Range, Colorado. The soil solutions were subjected to a series of batch Al experiments followed by computer modeling to separate the labile from the nonlabile Al, and to estimate the activity of Al 3+ . The Al solubility in the interstitial waters is complex and is controlled by organic solutes, H 4 SiO 4 , and pH. The pH and concentrations of SO 2- 4 do not correlate with Al concentrations. The chemical equilibria of Al are controlled by amorphous aluminosilicate Al(OH) 3(1-x) SiO 2x . Studies of mineralogy and soil water chemistry provide a useful combination to evaluate and predict the chemical processes of a soil environment.
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