Geochemical kinetic models

White A. F. and Peterson M. L. (1990) Role of reactive-surface-area characterization in geochemical kinetic models. In Chemical Modelling of Aqueous Systems II (eds. D. C. Melchior and R. L. Bassett). American Chemical Society, Washington, DC, vol. 416, pp. 461-475. 

Role of Reactive-Surface-Area Characterization in Geochemical Kinetic Models... 

Watson EB, Cherniak DJ (1997) Oxygen diffusion in zircon. Earth Planet Sci Lett 148 527-544 Wendlandt RW (1991) Oxygen diffusion in basalt and andesite melts Experimental results and discussion of chemical versus tracer diffusion. Contrib Mineral Petrol 108 463-471 West AR (1984) Solid State Chemistry and Its Applications. John Wiley and Sons, New York Whipple RTP (1954) Concentration contours in grain boundary diffusion. Phil Mag 45 1225-1236 White AF, Peterson MI (1990) Role of reactive-surface area characterization in geochemical kinetic models. In Melchior DC, Bassett RL (eds) Chemical Modeling of Aqueous Systems. II. Am Chem Soc Symp 416 461-475... 

Beginning in the late 1980s, a number of groups have worked to develop reactive transport models of geochemical reaction in systems open to groundwater flow. As models of this class have become more sophisticated, reliable, and accessible, they have assumed increased importance in the geosciences (e.g., Steefel et al., 2005). The models are a natural marriage (Rubin, 1983 Bahr and Rubin, 1987) of the local equilibrium and kinetic models already discussed with the mass transport... 

Strombkrg, B. Banwart, S. A. 1994. Kinetic modelling of geochemical processes at the Aitik mining waste rock site in northern Sweden. Applied Geochemistry, 9, 583-595. 

Overall, geochemical computer models can be extremely useful in the description of chemical equilibria occurring in the aquatic environment. In some cases, predictions about reaction kinetics and transport of species can also be made. The application of geochemical models is not limited to natural aquatic systems but has been usefully extended to predict the eflfectiveness of certain remediation strategies in the treatment of waters emanating from contaminated sites." ... 

Reactive solute-transport models couple the equations that describe physical transport processes with equations that describe geochemical reactions. These models can be divided into three basic categories (i) equilibrium models, (ii) partial equilibrium models, and (iii) kinetic models. The three are differentiated by the... 

Ritter U., Myhr M.B., Vinge T., Aareskjold K. (1995) Experimental heating and kinetic models of source rocks comparison of different methods. Org. Geochem. 23, 1-9. 

Schenk H.J., Horsfield B. (1998) Using natural maturation series to evaluate the utility of parallel reaction kinetic models an investigation ofToarcian shales and Carboniferous coals, Germany. Org. Geochem. 29, 137—54. 

Kinetics is the science which deals with the mechanisms and rates of chemical reactions, and ideally kinetic models should be incorporated into geochemical models, along with thermodynamics. This is being done increasingly, and is the subject of Chapter 11. The rest of this chapter outlines those aspects of thermodynamics needed to understand geochemical models. 

Because these parameters are linearly related in Equation 1, the statistical errors introduced by incorrect estimates are comparable for each term. The greatest cumulative error in many kinetic models lies in the estimating of natural systems reactive surface areas. This paper will review previous work, present additional data, and provide an estimate of the errors involved in using surface-area parameters in geochemical models. 

Combining the results from the fluid flow, kinetic modelling and the accepted geochemical petroleum populations in the area, this study concludes there are evidences pointing towards kitchen 34/5 as uniquely responsible for the Snorre accumulation. 

Rate models (kinetic models) are used to predict rates of geochemical processes in the near-surface environment. Based on the author s 30 years of teaching and research experience, this combination of reference and textbook provides a systematic, comprehensive description of rate models, developed from fundamental kinetic theory and presented using consistent terminology and notation. 

Geochemical rate models an introduction to geochemical kinetics /... 

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