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Isotope Geochemistry, Associate Professor |
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Isotope Geochemistry at UNC-CH | Take a tour of the Isotope Geochemistry Lab
Education | Contact Information | Research Interests | Research Activities | Research Publications
Ph.D. Kansas, 1991
Department of Geological Sciences
325 Mitchell Hall, CB#3315
University of North Carolina
Chapel Hill, NC 27599-3315
email: dcoleman@email.unc.edu
telephone: (919) 962-0705
fax: (919) 966-4519
My research is dedicated to applying a variety of field and laboratory techniques toward understanding the rates and mechanisms of crustal growth and deformation. I use basic field mapping, petrology, U-Pb geochronology, and Sm-Nd, Rb-Sr and U-Pb isotope geochemistry in orogenic belts to unravel their history of magmatism and deformation. Fundamentally, this research is applied to understanding how the continents have grown and been stabilized throughout Earth history.
Reconstructing the Rodinia supercontinent. This research is directed toward understanding how the Precambrian cratons were assembled into Rodinia, particularly along the southwestern margin of Laurentia. Work for this project is actively ongoing in the Transverse ranges of California. This work is a collaboration with Drs. Andy Barth (IUPUI) and Joe Wooden (USGS).
Understanding rates and mechanisms of crustal growth in continental arcs. I am actively working in the Sierra Nevada batholith of California to determine how quickly large batholiths are made and how they make room for themselves in the crust. Collaborators on this project include Drs. Allen Glazner (UNC) and John Bartley (University of Utah).
Additionally, I maintain active research projects using the isotope geochemistry of tree growth rings to monitor historic records of pollution, and the radiogenic isotope geochemistry of archaeological artifacts (teeth, bone, stone tools and pottery) to determine migration, trade and exchange patterns of prehistoric people.
Selected Research Publications
Bartley, J. M., Glazner, A. F., Coleman, D. S., Kylander-Clark, A. R. C., Mapes, R. and Friedrich, A. M., 2004, Large dextral offset across Owens Valley, California, and its possible relation to tectonic unroofing of the southern Sierra Nevada: Geological Society of America Special Paper, in review, 36 ms p., 9 figs., 3 tables.
*Kylander-Clark, A. R. C., Coleman, D. S., Glazner, A. F. and Bartley, J. M., in review, Evidence for 65 km of dextral slip across Owens Valley, California, since 83 Ma: Geological Society of America Bulletin, in review, 20 ms p., 4 figs., 2 tables.
Coleman, D. S., Glazner, A. F., Gray, W., Bartley, J. M. and Walker, J. D., 2004, Longevity of Geothermal Resources and Incremental Pluton Emplacement: Geothermal Resource Council, Transactions, in press, 24 ms p., 2 figs., 1 table.
Bartley, J. M., Coleman, D. S., Glazner, A. F. and Walker, J. D., 2004, Late Cenozoic deformation in the Coso Range, eastern California, and relation to the Coso magmatic and geothermal systems: Geothermal Resource Council, Transactions, in press, 24 ms p., 4 figs.
Cox, R., Coleman, D. S., Chokel, C. B., DeOreo, S. B., Wooden, J. L., Collins, A. S., De Waele, B. and Kröner, A., 2004, Proterozoic tectonostratigraphy and paleogeography of central Madagascar derived from detrital zircon U-Pb age populations: Journal of Geology, in press, 44 ms. p., 9 figs., 4 tables.
Feely, M., Coleman, D. S., Baxter, S. and Miller, B., 2004, Late Caledonian tectonic and magmatic events from U-Pb zircon geochronology of the Galway Granite, Connemara, Ireland: implications for orogen parallel strike slip faults and correlations with Acadian plutonism in New England: Atlantic Geology, in press, 16 ms. p., 3 figs., 2 tables.
*Wenner, J. M. and Coleman, D. S., 2004, Magma mixing and Cretaceous crustal growth: geology and geochemistry of granites in the central Sierra Nevada batholith, California: International Geology Review, in press, 38 ms. p., 7 figs., 3 tables.
Coleman, D. S., Gray, W., and Glazner, A. F., 2004, Rethinking the emplacement and evolution of zoned plutons: geochronologic evidence for incremental assembly of the Tuolumne Intrusive Suite, California: Geology, v. 32 no. 5, p. 433-436.
Glazner, A. F.,Bartley, J. M., Coleman, D. S., Gray, W. M. and Taylor, R. Z., 2004, Are plutons assembled over millions of years by amalgamation from small magma chambers?: Geological Society of America Today,v. 14, no. 4/5, p. 4-11.
Mahan, K. H., Bartley, J. M., Coleman, D. S., Glazner, A. F., and Carl, B. S., 2003, Sheeted intrusion of the synkinematic McDoogle pluton, Sierra Nevada, California: Geological Society of America Bulletin, v. 115, no. 12, p. 1570-1582.
Ernst, W. G., Coleman, D. S., Van de Ven, C. M., 2003, Petrochemistry of granitic rocks in the Mount Barcroft area-implications for arc evolution, central White Mountains, easternmost California: Geological Society of America Bulletin, v. 115, no. 4, p. 499-512.
Coleman, D. S., Briggs, S., Glazner, A. F. and Northrup, C. J., 2003, Timing of plutonism and deformation in the White Mountains of eastern California: Geological Society of America Bulletin, v. 115, no. 1, p. 48-57.
Coleman, D. S., Barth, A. P. and Wooden, J. L., 2002, Early to Middle Proterozoic reconstruction of the Mojave province, southwestern United States: Gondwana Research, v. 5, no. 1, p. 75-78.
Coleman, D. S., Walker, J. D., Bartley, J. M. and Hodges, K. V., 2001, Thermochronologic evidence for footwall deformation during extensional core complex development, Mineral Mountains, Utah: in Erskine, M. C., Faulds, J. E., Bartley, J. M. and Rowley, P. D. (eds.), The Geologic Transition, High Plateau to Great Basin: Utah Geological Association, publication 30, Salt Lake City, p. 155-168.
Barth, A. P., Wooden, J. L. and Coleman, D. S., 2001, SHRIMP-RG U-Pb zircon geochronology of Mesoproterozoic metamorphism and plutonism in the southwesternmost United States: Journal of Geology, v. 109, no. 3, p. 319-327.
*Edmands, J. L., Brabander, D. J., and Coleman, D. S., 2001, Uptake and mobility of uranium in Black Oaks: Implications for biomonitoring DU contaminated groundwater: Chemosphere, v. 44, no. 4, p. 789-795.
Barth, A. P., Jacobson, C. E., Coleman, D. S., and Wooden, J. L., 2001, Construction and tectonic evolution of Cordilleran continental crust: Examples from the San Gabriel and San Bernardino Mountains, in Dunne, G., and Cooper, J. (eds.), Geologic Excursions in the California Desert and Adjacent Transverse Ranges: Pacific Section, Society of Exploration Geologists and Mineralogists, Book 88, 17-53.
Barth, A. P., Wooden, J. L., Coleman, D. S. and Fanning, C. M., 2000, Geochronology of the Precambrian basement of the southwesternmost North American craton and implications for the origin and evolution of the Mojave crustal province: Tectonics, v. 19, no. 4, p. 616-629.
Coleman, D. S., Carl, B. S., Glazner, A. F. and Bartley, J. M., 2000, Cretaceous dikes within the Jurassic Independence dike swarm in eastern California: Geological Society of America Bulletin, v. 112, no. 3, p. 504-511.
Peters, J. L., Murray, R. W., Sparks, J. W. and Coleman, D. S., 2000, Terrigeneous matter and dispersed ash in sediment from the Caribbean Sea: Results from leg 165: Proceedings of the Ocean Drilling Program, Scientific Results, v. 165, p. 115-124.
*Brady, M. L., and Coleman, D. S., 2000, Determining the source of felsitic lithic material in southeastern New England using neodymium isotope ratios: Geoarchaeology, v. 15, no. 1, p. 1-19.
* indicates paper authored by student with Coleman as advisor
