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Senior Lecturer
Structural Geology
PhD University of Frankfurt (Germany)
MSc TU Darmstadt (Germany)
Phone: +27 (0) 46 603 8775
Fax: +27 (0) 46 603 7346
E-mail: s.buettner(at)ru.ac.za
RESEARCH INTERESTS
- The structural and metamorphic evolution of high-grade metamorphic continental crust
- Syntectonic magma emplacement
- Deformation-enhanced cation diffusion in silicates
- Fluid inclusion studies
RESEARCH
- The tectono-metamorphic evolution of the Namaqua Metamorphic Province in Bushmanland (Northern Cape Province, RSA)
- Palaeo-seismic events and the formation of pseudotachylyte in the Bushmanland basement
- Shear zone-hosted ore mineralizations in the Namaqua belt
- The crustal evolution of the Ordovician back-arc at the Proto-Andean Gondwana margin
- Major, minor, and trace element mobility in rock forming silicates (cordierite, tourmaline, feldspars, micas, pyroxene, and others)
- Temperature variations during tectonic events in the Cape Fold Belt: fluid inclusion studies of fault-related quartz veins.
POSTGRADUATE STUDENTS
- Briony Proctor (MSc) Fluid inclusion studies in vein- and fault-hosted quartz.
- Marcia Royi (MSc) Deformation-enhanced cation diffusion in rock forming minerals.
- Jason Moodley (MSc) Petrogenesis of the Swartoup enderbite and related rocks (Central Namaqua Metamorphic Belt; co-supervised with G. Costin) (graduating 2013)
- Joseph Siba Dopavogui (MSc Exploration Geology) Structural assessment of the Koulekoun geold deposit, Guinea, West Africa (co-supervised with Yong Yao)
- Lutendo Mavhungu (Honours) Structural geology and petrography of the Witteberg Group south of Grahamstown
- Dave Cousins (Honours) Geochronological and metamorphic evolution of migmatites of the Narries Subsuite (central Namaqua Belt)
- Wesson Reid (Honours) Fluid inclusion study of vein quartz from the Witteberg Group (Eastern Cape)
TEACHING
- Structural Geology and Plate Tectonics (1st - 3rd year and Honours)
- Module on Structural Geology in the Exploration Geology/Economic Geology MSc Course
- Honours Field School
- 1st year field trip
- Earth Science module in the Extended Studies Program (bridging course)
RECENT PUBLICATIONS
- Büttner, SH, Sherlock, S, Macey, P, Fryer, L, Lodge, J, Diale, T, Kazondunge, R (under review) Pseudotachylyte melt compositions, variability and interactions during late-Pan African faulting in the foreland of the Gariep Orogen, South Africa.
- Büttner, SH (2012) Rock Maker: an MS Excel spreadsheet for the calculation of rock compositions from proportional whole rock analyses, mineral compositions, and modal abundance. Mineralogy and Petrology; 104, 129-135.
- Büttner, SH and Costin, G (2010) Post-kinematic recovery of fractured cordierite in the lower amphibolite facies: the significance of cation diffusion for retrograde partial mineral breakdown. Mineralogy and Petrology, 100, 105-125.
- Büttner, SH (2009) The Ordovician Sierras Pampeanas – Puna basin connection: Basement thinning and basin formation in the Proto-Andean back-arc. Tectonophysics, 477, 278-291.
- Büttner, SH (2007) Late Variscan stress-field rotation initiating escape tectonics in the south-western Bohemian Massif: A far field response to late-orogenic extension. Journal of Geosciences, 52 (1-2), 29–43.
- Büttner, SH and Kasemann, SA (2007) Deformation-controlled cation diffusion in tourmaline: A microanalytical study on trace elements and boron isotopes. American Mineralogist, 92, 1862–1874.
- Kruhl, JH, Erdmann, S, Büttner, SH (2007) Brittle-ductile microfabrics in naturally deformed cordierite: Evidence for significant short-term strain-rate variations. Journal of Structural Geology 29 (2), 355–374.
- Büttner, SH, Glodny, J, Lucassen, F, Wemmer, K, Erdmann, S, Handler, R, and Franz, G (2005) Ordovician metamorphism and plutonism in the Sierra de Quilmes metamorphic complex: Implications for the tectonic setting of the northern Sierras Pampeanas (NW Argentina). Lithos, 83, 143–181.
- Büttner, SH (2005) Deformation-controlled cation diffusion in compositionally zoned tourmaline. Mineralogical Magazine, Vol. 69(4), 471–489.
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