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Research interests My current research interests are focussed on the use of accessory minerals, principally zircon and apatite, to reveal information on crustal processes.
1. Zircon as an indicator of low and medium grade metamorphic processes.
2. Apatite thermochronology and the thermal structure of the shallow crust.
3. Grain boundaries and the movement of fluids through the crust. The morphology of apatite mineral surfaces as a guide to palaeoporosity and deformation in crustal rocks.
4. Chemical zoning in accessory minerals as a monitor of crystallisation history.
5. The initial phases of orogenic evolution and links between surface processes and tectonics.
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The kinetics of metamorphic reactions and the importance of chemical zoning in rock-forming minerals such as micas, in controlling equilibrium.
The use of thermochronology to monitor denudation histories in high elevation tectonic regions.
The geological evolution of the British Caledonides.
. Current research Zircon dissolution and growth during metamorphism
Fluid flow through the shallow crust (Alps and California) (with Susan Lawther, Cristina Persano, Zoe Shipton)
Titanite as a monitor of magma mixing (with Graham Macleod, John Faithfull)
Orogenic development (with Cristina Persano)
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Recent publications | View all publications >> Mcleod, G.W., Dempster, T.J. and Faithfull, J.W. 2011. Deciphering magma-mixing processes using zoned titanite from the Ross of Mull Granite, Scotland. Journal of Petrology, v.52 (1), 55-82. View full text >> Dobson, K. J., Stuart, F. M. and Depmster, T. J. (2010) Thermal history of the Hebridean Igneous Province (HIP): How long has the HIP been cool? Journal of the Geological Society of London, 167, 5, 973-984. Hay, D.C., Dempster, T.J., Lee, M.R. and Brown, D.J. 2010. Anatomy of a low temperature zircon outgrowth. Contributions to Mineralogy and Petrology, v.159, 81-92. Clark, S.J.P. and Dempster, T.J. 2009. The record of tectonic denudation and erosion in an emerging orogen: an apatite fission-track study of the Sierra Nevada, southern Spain. Journal of the Geological Society, London, v.166, 87-100. Hay, D.C. and Dempster, T.J. 2009. Zircon alteration, formation and preservation in sandstones. Sedimentology, v.56, 2175-2191. Hay, D.C. and Dempster, T.J. 2009. Zircon behaviour during low-temperature metamorphism. Journal of Petrology, v.50, 571-589. Lawther, S.E.M. and Dempster, T.J. 2009. Apatite grain boundary morphology and its response to low temperature fluid infiltration in crystalline basement. Geofluids, v.9, 224-236. Dempster T.J., Martin J.C. and Shipton Z.K. 2008. Zircon dissolution in a ductile shear zone, Monte Rosa granite gneiss, northern Italy. Mineralogical Magazine, v.72, 971-986. Dempster, T.J., Hay, D.C., Gordon, S.H. and Kelly, N.M. 2008. Micro-zircon: origin and evolution during metamorphism. Journal of Metamorphic Geology, v.26, 499-507. Dobson, K. J., Stuart, F. M., Depmster, T. J., and EIMF. (2008) U and Th zonation in Fish Canyon Tuff zircons: Implications for a zircon (U-Th)/He standard. Geochimica & Cosmochimica Acta. 72 4745-4755.
doi:10.1016/j.gca.2008.07.015 >> Recent research grants | View all grants >> Shipton Z. K., Lawther S., Dempster T. and Boyce A. (SUERC). 2009-2010. Variability in fault architecture, mineralogy and fluid flow through faults in granite gneiss exhumed from seismogenic depths. NERC Isotope Geoscience Facility award IP-1156-1109, £43,200. Persano, C. and Dempster, T.J. 2007. Constraints on the longevity of fluid flow in the crust from low temperature thermochronometry and numerical modelling., £10,000 (Royal Society London) Persano, C. and Dempster, T.J. 2006-2007. The detection of fluid movements in the crust using low temperature thermochronology, £29,996 (Carnegie Trust for the Universities of Scotland) Teaching responsibilities Chair of Department Learning, Teaching and Assessment Committee
Courses.
Earth Sciences Level 1 Metamorphic rocks
Earth Sciences Level 1 Earth History (Snowball)
Earth Sciences Level 2 Global Tectonics
Earth Sciences Level 2 Metamorphic Processes
Earth Sciences Level 2 Minerals, Geochemistry & Isotopes
Earth Sciences Level 2 Field skills
Earth Sciences Level 3 Metamorphism
Earth Sciences Level 3 Stratigraphy
Earth Sciences Level 4 Major Earth Processes
Earth Sciences Level 4 Independant mapping surgeries
Earth Sciences Level 4 Analytical techniques
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Earth Sciences Field Classes
Level 3 Mull
Level 3 Oban
Level 3 Stonehaven, Corrieburn, Rosneath
Level 4 Southern Spain (Orogens and Basins option)
. Current postgraduate students
Susan Lawther (PhD candidate)
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