Soluble Aluminum Silicates: Stoichiometry, Stability, and Implications for Environmental Geochemistry
Abstract
Soluble aluminum silicate (Al-Si) complexes are critical species for the development and application of geochemical models. A fluorescence probe technique was used to show that Al-Si complexes account for up to 95% of the total inorganic mononuclear Al in natural waters. The presence of these soluble Al-Si species affects the solubility of Al-Si minerals. Soluble Al-Si species may be important intermediates in the weathering reactions of primary Al-Si minerals and should be considered in dissolution models. Soluble Al-Si species may be key components controlling the formation of metastable and new stable minerals during interactions between water and rocks or soils.
References
AAGAARD, P, THERMODYNAMIC AND KINETIC CONSTRAINTS ON REACTION-RATES AMONG MINERALS AND AQUEOUS-SOLUTIONS .1. THEORETICAL CONSIDERATIONS, AMERICAN JOURNAL OF SCIENCE 282: 237 (1982).
BERTSCH, P.M., CONDITIONS FOR AL-13 POLYMER FORMATION IN PARTIALLY NEUTRALIZED ALUMINUM SOLUTIONS, SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 51: 825 (1987).
Bloom, P. R., Rates of Soil Chemical Processes: CH7 (1991).
Bowen, H. J. M., Environmental Chemistry of the Elements (1979).
BROWNE, B.A., ALUMINUM SPECIATION USING MORIN .1. MORIN AND ITS COMPLEXES WITH ALUMINUM, JOURNAL OF ENVIRONMENTAL QUALITY 19: 65 (1990).
BROWNE, B.A., ALUMINUM SPECIATION USING MORIN .2. PRINCIPLES AND PROCEDURES, JOURNAL OF ENVIRONMENTAL QUALITY 19: 73 (1990).
BROWNE, B.A., THESIS SYRACUSE U (1988).
CHOU, L, STUDY OF THE WEATHERING OF ALBITE AT ROOM-TEMPERATURE AND PRESSURE WITH A FLUIDIZED-BED REACTOR, GEOCHIMICA ET COSMOCHIMICA ACTA 48: 2205 (1984).
Colman, S. M., Rates of Chemical Weathering of Rocks and Minerals: 1 (1986).
DRISCOLL, C. T., BIOGEOCHEMISTRY 3: 37 (1987).
DRISCOLL, C.T., ALUMINUM CHEMISTRY IN A FORESTED SPODOSOL, SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 49: 437 (1985).
FARMER, V. C., COLLOQUES INTERNATIONAUX DU CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE 303: 275 (1981).
FARMER, V.C., IMOGOLITE AND PROTO-IMOGOLITE ALLOPHANE IN SPODIC HORIZONS - EVIDENCE FOR A MOBILE ALUMINUM SILICATE COMPLEX IN PODZOL FORMATION, JOURNAL OF SOIL SCIENCE 31: 673 (1980).
FARMER, V.C., SIGNIFICANCE OF THE PRESENCE OF ALLOPHANE AND IMOGOLITE IN PODZOL BS HORIZONS FOR PODZOLIZATION MECHANISMS - A REVIEW, SOIL SCIENCE AND PLANT NUTRITION 28: 571 (1982).
HEM, J. D., U.S. GEOLOGICAL SURVEY WATER SUPPLY PAPER 1473 (1970).
HOLDREN, G.R., PH DEPENDENT CHANGES IN THE RATES AND STOICHIOMETRY OF DISSOLUTION OF AN ALKALI FELDSPAR AT ROOM-TEMPERATURE, AMERICAN JOURNAL OF SCIENCE 285: 994 (1985).
Hsu, P. H., Minerals in Soil Environment: 331 (1989).
Johnson, N. M., Geological Aspects of Acid Deposition: 37 (1984).
MAY, H. M., GEOCHIMICA ET COSMOCHIMICA ACTA 50: 1667 (1986).
Meyer, S. L., Data Analysis for Scientists and Engineers (1975).
Farmer, V. C., Podzols et Podzolization: 187 (1987).
Schott, J., Aquatic Surface Chemistry: 293 (1987).
Stumm, W., Aquatic Chemistry: 135 (1981).
WHITE, D. E., U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 440-F (1963).
Get full access to this article
View all available purchase options and get full access to this article.
Already a Subscriber?Sign In
Information & Authors
Information
Published In
Science
Volume 256 | Issue 5064
19 June 1992
19 June 1992
Copyright
© 1992 by the American Association for the Advancement of Science.
Submission history
Published in print: 19 June 1992
Authors
Metrics & Citations
Metrics
Article Usage
Altmetrics
Citations
Export citation
Select the format you want to export the citation of this publication.
View Options
Get Access
Log in to view the full text
AAAS login provides access to Science for AAAS Members, and access to other journals in the Science family to users who have purchased individual subscriptions.
- Become a AAAS Member
- Activate your AAAS ID
- Purchase Access to Other Journals in the Science Family
- Account Help
Log in via OpenAthens.
Log in via Shibboleth.
More options
Purchase digital access to this article
Download and print this article for your personal scholarly, research, and educational use.
Buy a single issue of Science for just $15 USD.
View options
PDF format
Download this article as a PDF file
Download PDF