Department of Geological Sciences

James A. Grant
Professor Emeritus
Ph.D. Cal. Tech

Interests: Metamorphic Petrology, Geochemistry, phase equilibria in high-grade metamorphism and partial melting of pelitic rocks, petrology of the thermal aureole of the Laramie Anorthosite Complex, experimental melting of pelitic compositions, analysis of mass transfer
Office: HH 211
Phone: (218) 726-7237
E-mail: jgrant@d.umn.edu

Jim Grant received his B.Sc. (1st. Class Hons.) from Aberdeen University, Scotland, his MS from Queen's University, Kingston, Ontario and his Ph.D. from the California Institute of Technology, all in Geology. He has been with the University of Minnesota since 1964, and at Duluth since 1969. He has done research in Ontario, Minnesota, Utah and Wyoming, Namibia and the Transvaal, Germany and Scotland. Grant was director of the Wasatch-Uinta Field camp for eight years, and was the first director of UMD's "Study in England" program in 1980-81. He was Head of the Geology Department from 1991 to 1999. His main research interests are in the geochemical aspects of high-grade metamorphism, particularly phase equilibria in partial melting of pelitic rocks, the petrology of the aureole of the Laramie Anorthosite Complex (Wyoming), experimental partial melting in pelitic compositions, and mass-balance in metasomatism.

Publications:

Grant, J.A., in press. Isocon analysis: a brief review of the method and applications. Physics and Chemistry of the Earth Special Issue.

Grant, J.A., 2004, Liquid compositions from low-pressure experimental melting of pelitic rock from Morton Pass, Wyoming, USA. Journal of Metamorphic Geology, v.22, p. 65-78.

Grant, J.A., 1993, Experimental melting of the natural assemblage quartz-K feldspar-biotite-cordierite from the Laramie Aureole, Morton Pass, Wyoming: Geological Society of America Abstracts with Programs, p. A-447.

Olsen, S.N. and Grant, J.A., 1991, Isocon analysis of migmatization in the Front Range, Colorado, U.S.A.: J. Metamorphic Geology, v. 9, p. 151-164.

Grant, J.A. and Frost, B.R., 1990, Contact metamorphism and partial melting of pelitic rocks in the aureole of the Laramie Anorthosite Complex, Morton Pass, Wyoming: Amer. J. Science, v. 290, p. 425-472.

Grant, J.A., 1986, The isocon diagram--a simple solution to Gresens' equation for metasomatic alteration. Economic Geology, v. 81, p. 1976-1982.

Grant, J.A., 1985b, Phase equilibria in partial melting of pelitic rocks, in Ashworth, J.R., ed., "Migmatites": Glasgow, Blackie and Son, p. 86-144.

Grant, J.A., 1985a, Phase equilibria in low-pressure partial melting of pelitic rocks: Amer. Jour. Science, v. 285, p. 409-435.

Grant, J.A., 1981, Orthoamphibole and orthopyroxene relations in high-grade metamorphism: Amer. Jour. Science, v. 281, p. 1127-1143

Grant, J.A., 1972, The Precambrian geology of the Minnesota River valley, in P.K. Sims and G.B. Morey, editors, Geology of Minnesota: Minn. Geol. Survey, p. 177-196.

Grant, J.A. and Weiblen, P.W., 1971, Retrograde zoning in garnet near the second sillimanite isograd: Amer. Jour. Science, v. 270, p. 281-296.

Grant, J.A., 1968, Partial melting of common rocks as a possible source of cordierite-anthophyllite bearing assemblages: Amer. Jour. Science, v. 266, p. 908-931.

Grant, J.A., 1964, Rubidium-strontium isochron study of the Grenville Front near Lake Timagami, Ontario: Science, v. 146, p. 1049-1053.