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Faculty Image Donald W. Hyndman



Specialization:  Igneous Petrology, Geologic Hazards.

My approach to petrology involves major use of field, petrographic, and chemical data, in conjunction with tectonic environment/regional geology. It emphasizes integration of as many different kinds of data as are available to develop and test viable models for the study involved. My students work on any reasonable petrologic project with which I feel comfortable.

Research Interests:

Granitic batholiths including Idaho batholith.
Geological hazards and disasters.
Tectonic/structural environments for granitic batholiths.
High-potassium alkalic rocks, including Central Montana High-Potassium Province.
Basin-scale basaltic sills, including giant Proterozoic sills of the Belt basin.
Magma differentiation and mixing.
Major mylonite zones in high-grade rocks.


Ph.D., University of California (Berkeley), 1964

Other Publications:

A few recent publications:

Hyndman, D.W. and D. Hyndman, 2011, Natural Hazards and Disasters, 3rd Edition, Brooks/Cole, Cengage Learning, 541 p.

Foster, D.A., C. Schafer, C.M. Fanning, D.W. Hyndman, 2001, Relationships between crustal partial melting, plutonism, orogeny, and exhumation: Idaho-Bitterroot batholiths: Tectonophysics, v. 342, p. 313-350.

Poage, M.A., D.W. Hyndman, and J.W. Sears, 2000, Petrology, geochemistry, and diabase-granophyre relations of a thick basaltic sill emplaced into wet sediments, western Montana: Canadian Journal of Earth Sciences, v. 37, p. 1109-1119.

Hyndman, D.W. and J.J. Brown, 2000, Slump block and debris slide on the Blackfoot River, Montana, U.S.A.: Landslide News, no. 13, p. 15-18.

Alt, D. and D.W. Hyndman, 2000, Roadside Geology of Northern and Central California: Mountain Press Publ. Co., 369 p.

Alt, D. and D.W. Hyndman, 1995, Northwest Exposures, A Geologic Story of the Northwest: Mountain Press Publ. Co., 442 p.

Hyndman, D.W. and K. Tureck-Schwartz, 1992, Coexisting alkalic and subalkalic igneous rocks: Bearpaw Mountains, central Montana high-potassium province, U.S.A.: 29th International Geological Congress, Kyoto, Japan, p. 572.

Tureck-Schwartz, K. and D.W. Hyndman, 1991, High-potassium igneous rocks of the Bearpaw Mountains, North-Central Montana, Montana Bureau of Mines and Geology, Special Publ. 100, p. 111-120.

Foster, D.A. and D.W. Hyndman, 1990, Magma mixing between synplutonic mafic dikes and granite, Idaho batholith, central Idaho and western Montana, in J.L. Anderson, editor, The Nature and Origin of Cordilleran Magmatism: Geological Society of America Memoir 174, p. 347-358.

Foster, D.A. and D.W. Hyndman, 1990, Large-scale crustal anatexis: The importance of subcrustal magma intrusion: EOS [Transactions of the American Geophysical Union], vol. 71, p. 299-300.

Hyndman, D.W., D. Alt, and J.W. Sears, 1989, Post-Archean metamorphic and tectonic evolution of western Montana and northern Idaho, in W.G. Ernst, editor, Metamorphism and crustal evolution of the Western United States: Prentice Hall, Englewood Cliffs, N.J., p. 332-361.