Ryan Mills

Email: rdmills@live.unc.edu
Office: 224 Mitchell

Current: Ph.D. geology, University of North Carolina. Thesis (part 1): "U/Pb geochronology and Sr-Nd-Pb isotope geochemistry of the Mt. Princeton batholith and associated ignimbrites in central Colorado" and (part 2) "The effects of temperature cycling on igneous textures" Co-advisors: D.S. Coleman and A.F. Glazner
2008: M.Sc. geology, University of North Carolina. Thesis: "Scale of pluton/wall rock interaction near May Lake, Yosemite National Park, California, USA" Advisor: A.F. Glazner
2002-2004: Lead Field Engineer and Estimator, Hensel Phelps Construction Co., Austin, TX
2002: Undergraduate certificate, G.I.S., University of Georgia
2001: B.Sc. geology, University of Georgia

I am a Ph.D. student working with Allen Glazner and Drew Coleman on: 1) chemical and temporal comparisons of ignimbrites and subvolcanic plutons in the Southern Rocky Mountain Volcanic Field (field work in CO & NM) and 2) experimental investigations into thermal cycling and crystal growth in magmas. Primary lab work for these projects is done at UNC.

PAPERS

Glazner, A.F. and Mills, R.D., in review, Statistics of two-dimensional cuts through objects with a fractal size distribution

Mills, R.D., Ratner, J., and Glazner, A.F., in press, Experimental evidence for crystal coarsening and fabric development during temperature cycling: Geology

Tappa, M.J., Coleman, D.S., Mills, R.D., and Samperton, K.M., in press, The plutonic record of a silicic ignimbrite from the Latir volcanic field, New Mexico: G-cubed

Mills, R.D., Glazner, A.F., and Coleman, D.S., 2009, Scale of pluton/wall rock interaction near May Lake, Yosemite National Park, CA, USA: Contributions to Mineralogy and Petrology, v. 158, p. 263-281

ABSTRACTS (* oral presentation, # oral presentation by co-author)

Mills, R.D. and Coleman, D.S., 2011, The non-explosive construction of the Mt Princeton batholith, Colorado: AGU Fall Meeting, San Francisco, CA.

#Coleman, D.S., Mills, R.D., and Tappa, M.J., 2011, Missed connection: Ignimbrite seeking plutonic relationship: Goldschmidt Conference, Prague, Czech Republic.

#Mills, R.D., and Glazner, A.F., 2011, Experimental evidence for coarsening of crystals and bubbles during thermal cycling of mafic and silicic magmas: Goldschmidt Conference, Prague, Czech Republic.

*Mills, R.D., and Glazner, A.F., 2011, Textural coarsening by thermal cycling in a basaltic magma and a magma analog: Joint Annual Meeting of the GAC® - MAC – SEG – SGA, Ottawa, Canada.

Mills, R.D., Zimmerer, M.J., Coleman, D.S., McIntosh, W., Samperton, K.M., and Tympel, J.F., 2010, High-precision geochronology of ignimbrites and associated plutons of two caldera systems in central Colorado and northern New Mexico: Geological Society of America Abstracts with Programs, v. 42, no. 5, p. 618.

#Zimmerer, M.J., Mills, R.D., Coleman, D.S., McIntosh, W.C., and Hughes, S, 2010, Using the intrusive record to understand caldera magmatism: The geochronology and geochemistry of the Mt. Aetna caldera complex, central Colorado: Geological Society of America Abstracts with Programs, v. 42, no. 5, p. 655.

*Mills, R.D. and Coleman, D. S., 2010, Modeling large-volume felsic eruptions from trace-element geochemistry: Geological Society of America Abstracts with Programs, v. 42, no. 4, p. 52.

#Glazner, A.F., Ratner, J., and Mills, R.D., 2009, Development of megacrysts and magmatic fabric in plutons via thermal cycling and thermal gradients: EOS, Transactions American Geophysical Union, v. 90, no. 52, Fall Meeting Supplement, Abstract V14A-02.

*Mills, R. D., Glazner, A. F. and Coleman, D. S., 2008, Comparing the compositional patterns of volcanic and plutonic rocks using the NAVDAT database: Geochimica et Cosmochimica Acta (Goldschmidt Abstracts), v. 72, no. 12S, p. A631.

#Glazner, A. F., Mills, R. D. and Coleman, D. S., 2008, Selective vs. bulk assimilation and restricted chemical variability of igneous rocks: Geochimica et Cosmochimica Acta (Goldschmidt Abstracts), v. 72, no. 12S, p. A313.

Mills, R.D., Glazner A.F., and Coleman D.S., 2007, Scale of pluton/wall rock interaction in the Tuolumne Intrusive Suite, Yosemite National Park, California: EOS, Transactions American Geophysical Union, v. 88, no. 23, Fall Meeting Supplement, Abstract V53B-09.