Steve Dunn

Professor of Geology

Office: 309 Clapp Laboratory
Lab: 310 Clapp Laboratory
Email: Steve Dunn
Phone: 413-538-2531 office
Phone: 413-538-3373 lab
Fax: 413-538-2239

Education

  • Ph.D. University of Wisconsin-Madison, Geology, 1989
  • M.S. University of Wisconsin-Madison, Geology, 1984
  • B.S. Humboldt State Univ., Arcata CA, Geology, 1981
 

Personal Statement

I love science! And I love geology. Throughout my "formative" years, I enjoyed learning all the science I could get my hands on, but I never dreamed I would actually become a scientist. Even going to college was an afterthought. I dropped out of Ohio State after one quarter! Later, I was living in Kalamazoo, Michigan, working nights at a Stop & Go and I decided to take a couple of classes just for fun at Western Michigan University. I took a mishmash of things, calculus, great books, philosophy of religion, and though I was listed as a chemistry major, I never took any chemistry there. One semester, though, I took oceanography, astronomy and geology. That was it! I was bitten by the geology bug! Astronomy was a gas, too, but it didn't seem as employable to me at the time. I saw in geology the opportunity to apply chemistry as a tool toward understanding the earth and its processes.

What did I do now that I had a career plan? I immediately dropped out of college and moved to California to help with a new family business, a toy store! It was a profitable two years in the Bay Area. With a moderately well-provisioned bank account, I then moved to Arcata to get serious about geology at Humboldt State. Tuition in '79 was about a hundred dollars per trimester, and the students complained about that! The faculty at Humboldt were outstanding. I am very grateful to John Longshore, Don Garlick, and especially Ken Aalto. My fellow students were wonderful, too. I lived on geology for two years, with a dose of physics on the side for my minor.

The University of Wisconsin was an outstanding place to do a Masters and Ph.D. I learned so much from the extraordinary faculty there, Phil Brown, Gordon Medaris, Jr., Bull Bailey, and especially John Valley. I am grateful to John Valley for giving me the chance to apply stable isotope chemistry and phase equilibria to the study of rocks.

Steve DunnOne of the great aspects of teaching at a liberal arts college is getting to know faculty outside one's own discipline. As a physics minor in college, and a chemistry minor for my doctorate, I appreciated interacting with my colleagues in the other sciences. Working with other MHC faculty, most notably Tom Dennis in the Astronomy Dept., I have enjoyed broadening my horizons and helping to develop our interdisciplinary science course, the Unity of Science. Geology will remain my chief interest, metamorphic petrology in particular (yes, I'm a geek!), but I hope I never stop learning all the science I can find time for. It is all connected, as are we all. Life is beautiful. The earth is beautiful. Be in the moment. Enjoy the ride! Dig rocks!

Teaching

I teach Rocks and Minerals (Geol 201), Igneous and Metamorphic Petrology (Geol 322), Geological Resources and the Environment (Geol 240), Physical Geology (Geol 100), and an occasional isotope geochemistry seminar (Geol 342).

Research

My research interests include metamorphic petrology, stable isotope geochemistry, calcite-graphite isotope thermometry, and subduction zone processes. My favorite field area is the southern Grenville Province, Ontario. Click here to see a really cool zoned garnet from Ontario.

Visit my Stable Isotope Laboratory.

Publications

  • Dunn, S.R. 2005 (PDF). Calcite-graphite thermometry in amphibolite facies marble, Bancroft, Ontario. Journal of Metamorphic Geology 23, 813-827.
  • Dunn, S.R. and Valley, J.W., 1996. Polymetamorphic fluid-rock interaction of the Tudor gabbro and adjacent marble, Ontario. American Journal of Science 296, 244-295.
  • Dunn, S.R. and Valley, J.W., 1992. Calcite-graphite thermometry: a test for polymetamorphism in marble, Tudor gabbro, Ontario. Journal of Metamorphic Geology 10, 487-501.
  • Dunn, S.R. and Medaris, Jr., L.G., 1989. Retrograded eclogites in the Western Gneiss Region, Norway, and thermal evolution of a portion of the Scandinavian Caledonides. Lithos 22, 229-245.

Abstracts

  • Dunn, Steven R and Bowman, J.R., 2003. Teaching stable isotope geochemistry in an undergraduate petrology course. Geological Society of America, Abstracts with Programs 35, number 6.
  • Achenbach, Kay L. and Dunn, Steven R., 2003. Calcite-graphite carbon isotope exchange in low grade marble. Geological Society of America, Abstracts with Programs 35, number 3, p. 95-96.
  • Gross, Kristina M., Dunn, Steven R., Jercinovic, Michael J., and Korhonen, Fawna J., 2003. Electron microprobe dating of monazite in constraining the metamorphic history of the Wilson Lake Terrane, Labrador. Geological Society of America, Abstracts with Programs 35, number 3, p. 96.
  • Wright, Jennifer B. and Dunn, Steven R., 2003. Calcite-graphite geothermometry and mineral equilibria in amphibolite facies marbles near Bancroft, Ontario. Geological Society of America, Abstracts with Programs 35, number 3, p. 96.
  • Dunn, Steven R. and Valley, J.W., 1999. Calcite-graphite thermometry and implications for metamorphism of marble near Bancroft, Ontario. Geological Society of America, Abstracts with Programs 31, number 7, p. A39.
  • Dunn, Steven R., 1998. Formation of dolomite-hosted massive talc at Madoc, Ontario. Geological Society of America, Abstracts with Programs 30, number 7, p. A229.
  • Principato, Sarah M. and Dunn, Steven R., 1997. Application of calcite-dolomite thermometry, southern Grenville Province, Ontario. Geological Society of America, Northeast Section, Abstracts with Programs 29, number 1, p. 74.
  • Dunn, Steven R., 1996. Introductory science education at the college level: the role of the geoscientist Geological Society of America. Geological Society of America, Abstracts with Programs 28, number 7, p. A101.
  • Banks, Emily S. and Steven R. Dunn, 1996. Internal buffering of metamorphic fluids within marble, Grenville Province, S. Ontario. Geological Society of America, Northeast Section, Abstracts with Programs 28, number 3, p. 36.
  • Monani, Salma B., Wulff, Andrew, Konicki, Kathryn M., and Dunn, Steven R., 1996. Geochemical modeling of a bimodal gabbro-syenite intrusion, the Umfraville complex, Grenville Province, Ontario. Geological Society of America, Northeast Section, Abstracts with Programs 28, number 3, p. 83-84.
  • Swenson, Lara M., Dunn, Steven R., and Savoy, Lauret E., 1996. Comparison of conodont color alteration index with garnet-biotite thermometry, New Hampshire and Massachusetts. Geological Society of America, Northeast Section, Abstracts with Programs 28, number 3, p. 102-103.
  • Waterman, Heather A. and Dunn, Steven R., 1996. P-T history of part of the Elzevir terrane, Grenville Province, Southern Ontario. Geological Society of America, Northeast Section, Abstracts with Programs 28, number 3, p. 109.
  • Dunn, Steven R., Stone, Suzanne B., and Wyser-Pratte, Vanessa L., 1995. Mineral equilibria in amphibolite facies marble, S. Ontario. and implications for T-X(CO2) Relations. Geological Society of America, Abstracts with Programs 27, number 6, p. A317.
  • Hueneke, Kirsten and Dunn, Steven R., 1995. Volume and composition changes during metasomatism of dolomitic marble: evidence from silicified stromatolites. Geological Society of America, Northeast Section, Abstracts with Programs 27, number 1, p. 56.
  • Konicki, Kathryn M. and Dunn, Steven R., 1995. Petrogenesis of the Umfraville Gabbro and Associated Syenite, Grenville Province, Southern Ontario. Geological Society of America, Northeast Section, Abstracts with Programs 27, number 1, p. 61.
  • Wyser-Pratte, Vanessa, Stone, Suzanne, and Dunn, Steven, 1995. Fluid Infiltration vs. Temperature Control on Metamorphic Assemblages in Marble and Calc-silicate Rocks from the Grenville Province, Southern Ontario. Geological Society of America, Northeast Section, Abstracts with Programs 27, number 1, p. 93.
  • Dunn, S.R. and Gilliam, C.E., 1994. Garnet zoning and interpretations of the pressure-temperature history for a portion of the Elzevir terrane, Grenville Province, S. Ontario. Geological Society of America, Abstracts with Programs 26, number 7, p. A225-6.
  • Dunn, S.R., 1994. Modifying the Science Pipeline: a Formidable Challenge. Five-College Workshop on Teaching Introductory Science, Smith College, Northhampton, MA.
  • Dunn, S.R., 1994. CONCUR: A Cooperative Opportunity Network, Council on Undergraduate Research, Geology Division. Council on Undergraduate Research National Meeting, Bates College, Lewiston, ME. (Invited) Collaborative Research Workshop.   
  • Dunn, S.R., 1994. Petrology Assignments as Preparation for Undergraduate Research. Council on Undergraduate Research National Meeting, Bates College, Lewiston, ME.
  • Dunn, S.R. 1993. The lawsonite-blueschist to epidote-blueschist transition in mafic tectonic blocks, Horse Mountain, N. California. Geological Society of America, Abstracts with Programs 25, number 6, p. p. A450.
  • Dunn, S.R., Aalto, K.R., Abitz, R.J., and Gilliam, C.E. 1993. Tectonic blocks at Horse Mountain, N. California: A unique occurrence of mafic blueschists in serpentinite along the South Fork fault adjacent to the Klamath Mountains. Geological Society of America, Cordilleran Section, Abstracts with Programs 25, number 5, p. 33.
  • Dunn, S.R. and Peare, T. 1992. Formation of a dolomite-hosted massive talc deposit, Madoc, Ontario. Geological Society of America, Northeast Section, Abstracts with Programs 24, number 3, p. 17.
  • Dunn, S.R. and Valley, J.W. 1991. Decarbonation and fluid infiltration effects on stable isotopes in marble and calc-silicate rocks adjacent to the Tudor gabbro. Geological Society of America, Abstracts with Programs 23, number 5, p. A512.
  • Dunn, S.R. and Valley, J.W. 1990. Polymetamorphic fluid-rock interaction in marble. Geological Society of America, Abstracts with Programs 22, number 7, p. A212.
  • Dunn, S.R. and Valley, J.W. 1990. Metamorphic devolatilization and fluid infiltration of marble and calc-silicate rocks adjacent to the Tudor gabbro, southern Ontario. Geological Society of America, Abstracts with Programs 22, number 2, p. 13.
  • Dunn, S.R. and Valley, J.W. 1988. Calcite-graphite carbon isotope exchange during metamorphism: south-central Maine and southern Ontario. Geological Society of America, Abstracts with Programs 20, number 7, p. A46.
  • Wopenka, B., Pasteris, J.D., Bernatowicz, T.J., Dunn, S.R. and Valley, J.W. 1988. Si-bearing graphite in Tudor Township, Ontario. EOS 69, p. 501.
  • Dunn, S.R. and Valley, J.W. 1987. Calcite-graphite carbon isotope thermometry: recognition of polymetamorphism, Tudor gabbro. Geological Society of America, Abstracts with Programs 19, number 7, p. 649.
  • Dunn, S.R. and Valley, J.W. 1987. Oxygen isotope enrichment and metamorphic fluid infiltration of the Tudor gabbro, Ontario. EOS 68, p. 466.
  • Dunn, S.R. and Valley, J.W. 1986. Fluid flow during metamorphism of the Tudor gabbro: a pervasive and channelized character. Geological Association of Canada, Program with Abstracts 11, p. 65.
  • Dunn, S.R. and Valley, J.W. 1985. Fluid infiltration of the Tudor gabbro during regional metamorphism. Geological Society of America, Abstracts with Programs 17, number 7, p. 570.
  • Dunn, S.R., Medaris, Jr., L.G., and Wang, H.F. 1984. A thermal-tectonic model for metamorphism of basic rocks in the Caledonian of Western Norway. Geological Society of America, Abstracts with Programs 16, number 6, p. 496.

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