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RECORD NUMBER: 33 OF 44

OLS Field Name OLS Field Data
Main Title Role of Soil Organic Acids in Mineral Weathering Processes (Chapter 6).
Author Drever, J. I. ; Vance, G. F. ;
CORP Author Wyoming Univ., Laramie.;Corvallis Environmental Research Lab., OR.
Publisher 1992
Year Published 1992
Report Number EPA/600/A-93/012;
Stock Number PB93-149268
Additional Subjects Soils ; Soil chemistry ; Weathering ; Organic acids ; Humic acids ; Soil profiles ; Dissolving ; Soil structure ; Diagrams ; Slicate minerals ; Agriculture ; Geochemistry ; Chemical reactions ; Fulvic acids ; Soil solutions ; Microenvironment ; Soil-water-plant relationships
Holdings
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Status
NTIS  PB93-149268 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/12/1993
Collation 51p
Abstract
The paper summarizes the occurrence and distribution of soluble organic acids in soils and reviews the role of organic acids in mineral weathering. Organic acids, particularly humic and fulvic acids, are present in soil solutions and these acids have a major influence on the translocation of iron and aluminum in soil profiles. Organic acids may also accelerate the weathering of primary silicate minerals. The paper deals with the controversy as to whether or not organic acids at natural concentrations significantly accelerate the rate of dissolution of primary silicate minerals.