Journal ArticleDOI
Kinetics of mass transfer among silicates and aqueous solutions
TLDR
In this paper, the authors show that the kinetics of mass transfer among aluminosilicates and aqueous solutions can be described by a simple parabolic rate law, which is consistent with diffusional mass transfer and applicable to incongruent as well as congruent reactions.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1971-05-01. It has received 213 citations till now. The article focuses on the topics: Reaction rate constant & Reaction rate.read more
Citations
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Journal ArticleDOI
Formation and Diagenesis of Weathering Profiles
H.W. Nesbitt,Grant M. Young +1 more
TL;DR: In this paper, the predicted bulk compositional changes are corroborated by studies of recent weathering profiles developed on a variety of plutonic and volcanic rocks under different climatic regimes.
Journal ArticleDOI
Chemical kinetics of water-rock interactions
TL;DR: In this paper, the authors provide a quantitative framework for the description of weathering and alteration in sedimentary petrology, using the available experimental data on dissolution of silicates to verify quantitatively the usual mineral stability series.
Journal ArticleDOI
The coordination chemistry of weathering: I. Dissolution kinetics of δ-Al2O3 and BeO
Gerhard Furrer,Werner Stumm +1 more
TL;DR: In this article, the dissolution kinetics of slightly soluble oxides and silicates are controlled by chemical processes at the surface, and the reaction controlling steps can be interpreted in terms of a surface coordination model.
Journal ArticleDOI
Thermodynamic and kinetic constraints on reaction rates among minerals and aqueous solutions. II. Rate constants, effective surface area, and the hydrolysis of feldspar
TL;DR: In this article, it was shown that the cross-sectional area of etch pits on hydrolyzed feldspar grains is of the order of 10−9 to 10−8 cm2 and that the ratio of the effective to total surface area (which may or may not change with reaction progress) ranges from <0.01 to 1, depending on the grain size, dislocation density, and the extent of comminution damage on the surfaces of the grains.
References
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Book
Solutions, Minerals and Equilibria
Robert M. Garrels,C. L. Christ +1 more
TL;DR: In this article, the authors provide a thorough, up-to-date coverage of controls on the chemical quality of surface and ocean waters. But they do not provide a detailed analysis of the results of their experiments.
Journal ArticleDOI
Thermodynamics of hydrothermal systems at elevated temperatures and pressures
TL;DR: In this article, sufficient thermodynamic data are available to permit calculation of equilibrium constants for a large number of hydrothermal reactions, where the calculations involve entropy estimates, application of average heat capacities, and/or assumptions concerning the temperature dependence of thermodynamic variables and the relative importance of electrostatic and non-electrostatic interaction among the species.
Journal ArticleDOI
Evaluation of irreversible reactions in geochemical processes involving minerals and aqueous solutions - I. Thermodynamic relations
TL;DR: In this article, a geochemical process can be represented by a set of reversible and irreversible chemical reactions that correspond to an array of linear differential equations relating partial equilibrium and nonequilibrium in thermodynamic systems.
Journal ArticleDOI
Evaluation of irreversible reactions in geochemical processes involving minerals and aqueous solutions—II. Applications
TL;DR: In this paper, equilibrium relations among common rock-forming minerals and aqueous solutions over a range of temperatures and pressures are known experimentally for a number of systems and can be calculated for others.
Related Papers (5)
Thermodynamic and kinetic constraints on reaction rates among minerals and aqueous solutions; I, Theoretical considerations
Per Aagaard,Harold C. Helgeson +1 more