GEOLOGICAL  SCIENCES

JOHN V. WALTHER
Matthews Professor

PUBLICATIONS AND   ABSTRACTS


BIBLIOGRAPHY 1991-PRESENT

Wogelius, R.A. and Walther, J.V., 1991, Olivine dissolution at 25 degrees C: Effects of pH, CO2 and Organic Acids: Geochim. Cosmochim. Acta , v. 55, p. 943-954.

Walther, J.V., 1991, Determiniing the thermodynamic properties of solutes in crustal fluids: Amer. J. Sci. , v. 291, p. 453-472.

Wogelius, R.A. and Walther, J.V., 1992, Olivine dissolution kinetics at near surface conditions: Chem.Geol. , v. 97, p. 101-112.

Walther, J.V., 1992, Ionic association in H2O-CO2 fluids at mid-crustal conditions: J. Metamorphic Geol. , v. 10, p. 789-797.

Brady, P.V. and Walther, J.V., 1992, Surface chemistry and silicate dissolution at elevated temperatures: Amer. J. Sci. v. 292, p. 639-658.

Xie, Z. and Walther, J.V., 1992, Incongruent dissolution and surface area of kaolinte: Geochim. Cosmochim. Acta , v. 56, p. 3359-3363.

Walther, J.V. and Woodland, A.B., 1993, Experimental determination of the solubility of the assemblage microcline, muscovite and quartz in supercritical H2O: Geochim. Cosmochim. Acta , v. 57, p. 2431-2437.

Xie, Z. and Walther, J.V., 1993, Wollastonite + quartz solubility in supercritical NaCl aqueous solutions: Amer. J. Sci. , v. 293, p. 235-255.

Xie, Z. and Walther, J.V., 1993, Quartz solubilities in NaCl solutions with and without wollastonite at elevated temperatures and pressures: Geochim. Cosmochim. Acta , v. 57, p. 1947-1955.

Mazor, J.J. and Walther, J.V., 1994, Dissolution kinetics of silica glass as a function of pH between 40 and 85 degrees C: J. Non-Crystalline Solids , v. 170, p. 32-45.

Xie, Z. and Walther, J.V., 1994, Dissolution stoichiometry and adsorption of alkali and alkaline earth elements to the acid-reacted wollastonite surface at 25 degrees C: Geochim. Cosmochim. Acta , v. 58, p. 2587-2598.

Walther, J.V., 1994, Fluid-rock reactions during metamorphism at mid-crustal conditions: J. Geology , v. 102, p. 559-570.

Walther, J.V. and Holdaway, M.J., 1995, Comment: Mass transfer during Barrovian metamorphism: Amer. J. Sci. , v. 295, p. 1020-1025.

Walther, J.V., 1996a, Fluid production and isograd reactions at contacts of carbonate-rich and carbonate-poor layers during progressive metamorphism: J. Metamorphic Geol. , v. 14, p. 351-360.

Walther, J.V., 1996b, Relation between rates of aluminum silicate mineral dissolution, pH, temperature, and surface charge: Amer. J. Sci. , v. 296, p. 693-728.

Walther, J.V., 1997a, Determination of activity coefficients of neutral species in supercritical H2O solutions: Geochim. Cosmochim. Acta , v. 61, p. 3311-3318.

Walther, J.V., 1997b, Comment: Feldspar dissolution at 25 degrees C. and low pH: Amer. J. Sci. , v. 297, p. 1012-1021.

Walther, J.V., 1997c, Experimental determination and interpretation of the solubility of corundum in H2O between 350 and 600 degrees C from 0.5 to 2.2 kbar: Geochim. Cosmochim. Acta , v. 61, p. 4955-4964.


ABSTRACTS 1991-PRESENT

1991, Walther, J.V., Thermodynamic properties of solutes in H2O-CO2-CH4 and other mixed solvent fluids at elevated temperatures and pressures: Abstracts with programs, Geol. Soc. Amer., v. 23, A213.

1991, Xie, Z. and Walther, J.V., Relation between potentiometric titration, incongruent dissolution and surface area determination of kaolinite: Abstracts with programs, Geol. Soc. Amer., v. 23, A259.

1992, Walther, J.V. and Woodland, A.B., Solubility of microcline, muscovite and quartz and the speciation of Al in supercritical H2O: Abstracts with programs, Geol. Soc. Amer., v. 24, A208.

1992, Xie, Z. and Walther, J.V., Quartz solubilities in NaCl solutions at elevated temperatures and pressures: Amer. Geophys. Union Trans. (EOS), v. 73, p. 649.

1993, Xie, Z. and Walther, J.V., Dissolution kinetics and adsorption of cations to the acid reacted wollastonite surface at 25 degrees C: Abstracts with programs, Geol. Soc. Amer., v. 25, A438.

1994, Walther, J.V., Kinetics of fluid-mineral reactions in metamorphic processes, Mineralogical Society Winter Conference, Program & Abstracts, p. 25.

1994, Xie, Z., and Walther, J.V., Dissolution kinetics and adsorption of Cd(II), Co(II) and Ni(II) by acid-reacted wollastonite at near surface conditions. Amer. Geophys. Union Trans. (EOS), Spring Meeting, v. 75, p. 140.

1994, Lerman, A., Walther, J.V. and Leffler, L.M., Global change and environmental science program on short and long time scales. Amer. Geophys. Union Trans. (EOS), Spring Meeting, v. 75, p. 64.

1995, Cruz, J.B. and Walther, J.V., Surface change behavior of andalusite: implications for mixed oxide surface group contributions. (EOS), Spring Meeting, v. 76, no. 17, p. S101.

1995, Walther, J.V., Relation between rates of aluminum silicate mineral dissolution, pH, temperature and surface charge: Abstracts with programs, Geol. Soc. Amer., v. 27, A44.

1996, Mukhopadhyay, B. and Walther, J.V., Zero point of charge and surface complexation of albite: Abstracts with programs, Geol. Soc. Amer., v. 28, A145-146.

1996, Walther, J.V., Should diffusion be characterized in terms of concentration of chemical potential gradients?: Abstracts with programs, Geol. Soc. Amer., v. 28, A132.

1997, Walther, J.V. Solubility of corundum in H2O between 350 and 600 C from 0.5 to 2.2 kbar: Abstracts with programs, Geol. Soc. Amer., v. 29, A25.

Walther, J.V., 1998, Fluids in the deep crust: Abstracts with programs, Geol. Soc. Amer., v.30, A-243.


Dr. John V. Walther
Department of Geological Sciences
Southern Methodist University
Dallas, Texas 75275-0395
voice: (214) 768-3174
fax: (214) 768-2701
email: walther@mail.smu.edu