UNC College of Arts & Sciences

Geological Sciences

Allen F. Glazner

Mary Lily Kenan Flagler Bingham

Distinguished Professor

Igneous Petrology, Tectonics, Geoinformatics

Office: 310 Mitchell Hall
Phone: (919) 962-0689
Email: afg at unc.edu

Ph.D., University of California-Los Angeles, 1981
B.A., Pomona College, 1976

My principal research interests are igneous petrology, tectonics, and the geologic evolution of western North America. Tools employed in these studies include field work, whole-rock geochemistry, radiogenic isotope studies, U-Pb geochronology, and structural geology.

Recent awards

I was awarded the 2011 J Carlyle Sitterson Freshman Teaching Award for my Fall 2009 First-Year Seminar entitled Field Geology of Eastern California. Many thanks to the students who made this award possible--they were the ones that did all the work that semester.

  Check out Geology Underfoot in Yosemite National Park


Allen's Research Page

Graduate students

Adam Curry (M.S.; origin of obsidian)

Roger Putnam (M.S.; geology of the southeastern face of El Capitan, Yosemite Valley, California)

John DeDecker (M.S.; starting Fall 2012)


Selected recent publications (*=student coauthor):

*Mills, R. D., and Glazner, A. F., in review, Experimental study of temperature cycling on coarsening of plagioclase and olivine in an alkali basalt: Contributions to Mineralogy and Petrology.

Bartley, J. M., Glazner, A. F., and Coleman, D. S., in review, Diking and deformation of granodiorite during growth of the Half Dome pluton, Yosemite National Park, California: Geosphere.

Coleman, D. S., Bartley, J. M., Glazner, A. F., and Pardue, M. J., 2012, Is chemical zonation in plutonic rocks driven by changes in source magma composition, or shallow crustal differentiation?: Geosphere.

Glazner, A. F., and *Mills, R. D., in press, Statistics of two-dimensional cuts through objects with a fractal size distribution: application to xenoliths, breccias, and enclaves: Geosphere, v. 8, p. 902-914, doi:10.1130/GES00731.1.

Bartley, J. M., Glazner, A. F., and Mahan, K. H., in press, Formation of pluton roofs, floors, and walls by crack opening at Split Mountain, Sierra Nevada, California: Geosphere.

*Mills, R. D., *Ratner, J. J., and Glazner, A. F., 2011, Experimental evidence for crystal coarsening and fabric development during temperature cycling: Geology, v. 39, p. 1139-1142, doi:10.1130/G32394.1.

Glazner, A. F., in press, Geologic setting of Little Lake rock art: in Van Tilburg, J. A., Hull, G., and Bretney, J. C., eds., Captured Visions: Rock Art at Little Lake Ranch, Owens Valley, California: Monumenta Archaeologica Series, 40 ms. pages. Due out any decade now.

Glazner, A. F., and Stock, G. M., 2010, Geology Underfoot in Yosemite National Park and Vicinity: Mountain Press Publishing Co., 304 p.

*Johnson, B. R., and Glazner, A. F., 2010, Formation of K-feldspar megacrysts in granodioritic plutons by thermal cycling and late-stage textural coarsening: Contributions to Mineralogy and Petrology, v. 159, p. 599-619, DOI 10.1007/s00410-009-0444-z.

*Mills, R. D., Glazner, A. F., and Coleman, D. S., 2009, Scale of pluton/wall rock interaction near May Lake, Yosemite National Park, California, USA: Contributions to Mineralogy and Petrology, v. 158, p. 263-281, doi: 10.1007/s00410-009-0381-x.

Glazner, A. F., Coleman, D. S., and Bartley, J. M., 2008, The tenuous connection between high-silica rhyolites and granodiorite plutons: Geology, v. 36, p. 183-186, doi: 10.1130/G24496A.1.

*Gray, W., Glazner, A. F., Coleman, D. S., and Bartley, J. M., 2008, Long-term geochemical variability of the Lat e Cretaceous Tuolumne Intrusive Suite, central  Sierra Nevada, California: Geological Society of London Special Publication, v. 304, p. 183-201.

Glazner, A. F., *Carl, B. S., Coleman, D. S., *Miller, J. S, and Bartley, J. M., 2008, Chemical variability and composite nature of di kes from the Jurassic Independence dike swarm, eastern California: Geological Society of America Special Paper 438, p. 455-480.

Glazner, A. F., 2007, Thermal limitations on incorporation of wall rock into magma: Geology, v. 35, p. 319-322, DOI: 10.1130/G23134A.1.

Bartley, J.M., Coleman, D.S., and Glazner, A.F., 2007. Incremental emplacement of plutons by magm atic crack-seal.  In: N. Petford and S. Sparks (Editors), Plutons and Batholiths. Transactions of the Royal Society of Edinburgh (Wallace Pitcher Memorial Issue), v. 97, p. 383-396.

Bartley, J.M., Glazner, A. F., Coleman, D. S., *Kylander-Clark,  A.R.C., Mapes, R., and Friedrich, A.M., 2007, Large Laramide dextral offset across Owens Valley, California, and its possible relation to tectonic unroofing of the southern Sierra Nevada: Geological Society of America Special Paper 434, p. 129-148.

Glazner, A. F., and Bartley, J. M., 2006, Is stoping a volumetrically significant pluton emplacement process?: Geological Society of America Bulletin, v. 118, p. 1185-1195, DOI: 10.1130/B25738.1.

*Mordick, B. E., and Glazner, A. F., 2006, Clinopyroxene thermobarometry of basalts from the Coso and Big Pine volcanic fields, California: Contributions to Mineralogy and Petrology, v. 152, p. 111-124, DOI: 10.1007/s00410-006-0097-0.

*Ratajeski, K., Sisson, T. W., and Glazner, A. F., 2005, Experim ental and geochemical evidence for derivation of the El Capitan Granite, California, from hydrous mafic lower crust: Contributions to Mineralogy and Petrology, v. 149, p. 713-734, doi: 10.1007/s00410-005-0677-4.

*Kylander-Clark, A. R. C., Coleman, D. S., Glazner, A. F., and Bartley, J. M., 2005, Evidence for 65 km of dextral slip across Owens Valley, California, since 83 Ma: Geological Society of America Bulletin, v. 117, p. 962-968.

Sisson, T. W., *Ratajeski, K., Hankins, W. B., and Glazner, A. F., 2005, Voluminous granitic magmas from basaltic sources: Contributions to Mineralogy and Petrology, v. 148, p. 635-661, DOI 10.1007/s00410-004-0632-9.

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, p. 433-436, doi: 10.1130/G20220.1.

Glazner, A. F., Bartley, J. M., Coleman, D. S., *Gray, W., and *Taylor, R. Z., 2004, Are plutons assembled over millions of years by amalgamation from small magma chambers? GSA Today, v. 14, p. 4-11, doi: 10.1130/1052-5173(2004)014<0004:APAOMO>2.0.CO;21996.

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