General Information
Education:
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Ph.D., Geology,
Johns Hopkins University, 2005
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B.S., Geological Sciences,
University of Washington, 2001
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B.S., Applied and Computational Mathematical Sciences,
University of Washington, 2001
Bio:
This is my
CV (PDF)
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Contact:
Dr. Taber Hersum
Lamont-Doherty Postdoctoral Fellow
Lamont-Doherty Earth Observatory
61 Route 9W
Palisades, NY 10964-1000 USA
office: (845) 365-8662
fax: (845) 365-8155
email: hersum at ldeo.columbia.edu
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Research
I am interested in the physics and chemistry of magmatic processes through a combination
of theory and field work.
Most of my theoretical work is focused on numerical modeling of magmatic processes at the length scale of crystals in partially molten magma.
The value of considering magmatic processes at the grain-scale is that unanticipated phenomenon can arise that perhaps changes our perception of these same processes at the larger field-scale. Furthermore, the output of these grain-scale models can be used to provide constituitive relations to close continuum-scale models and for interpreting both geochemical and geophysical data.
My current and recent research topics in grain-scale modeling include the following:
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Publications
- Hersum, T. G. Consequences of crystal shape and fabric on anisotropic permeability in magmatic mush. (in preparation).
- Bedard, J. H., Marsh, B. D., Hersum, T. G., Naslund, H. R., and S. B. Mukasa. Large-scale mechanical redistribution of orthopyroxene and plagioclase in the Basement Sill, Ferrar dolerites, Antarctica: Petrological, mineral-chemical and field evidence for channelized movement of crystals and melt. (in revision J. Pet.).
- Hersum, T. G., Marsh, B. D., and A. C. Simon. Dolerite Partial Melting of Granitic Country Rock, Melt Segregation, and Re-injection as Dikes, McMurdo Dry Valleys, Antarctica. (in revision J. Pet.). (PDF).
- Hersum, T. G. and B. D. Marsh. Igneous Texture: On the Kinetics behind the Words. (in press Elements).
- Hersum, T. G. and B. D. Marsh (2006). Igneous microstructures from kinetic models of crystallization. J. Volcanol. Geotherm. Res., 154, 2006, 34-47. (PDF).
- Hersum, T. G., Hilpert, M., and B. D. Marsh (2005). Permeability and melt flow in simulated and natural partially molten basaltic magmas. Earth Planet. Sci. Lett. , 237, 2005, 798-814.
(PDF).
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Personal
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Last updated on
by T. Hersum.
