Ulrike EXNER, Mag. Dr.

ulrike.exner@univie.ac.at

Room Number: 2B447
Tel.: +43-1-4277-53471
Fax: +43-1-4277-9534

Research Interests:

Faulting and folding of unconsolidated sediments
Spatial distribution of porosity in reservoir rocks (µCT and SEM)
Mechanical modeling of 3D fault drag
3D fault geometry and mechanics of natural fault systems
High-resolution mapping of geological structures using Differential GPS

Current Projects:

since 2011: 3D micro-imaging of fracture networks using micro-Computed Tomography - Upscaling of porosity and permeability of a fractured reservoir
(OMV Exploration and Production)
Project Leader: Ulrike Exner
Co-Applicants: Marcel Frehner, Bernhard Grasemann, Kurt Decker
PhD Students: Alexander Rath, Maarten Voorn

since 2011: Doctoral School: Deformation of geological materials: Mechanical-chemical feedback and the coupling across scales
Speakers: R. Abart, B. Grasemann
Principle Investigators: G. Habler, U. Klötzli, L. Nasdala, U. Exner (PhD student: Marco Lommatzsch)

2011-2012: Deformationsbänder in hochporösem Kalkstein, Entstehung und
Einfluss auf Fuidfluss: eine kombinierte Gelände- und Laborstudie (Amadée, ÖeAD, Zentrum für Internationale Kooperation und Mobilität)
In collaboration with Patrick Baud, EOST Strasbourg

since 2010: Mechano-chemical feedback processes in Deformation Bands (FWF Elise Richter Project V151-N22)
Project Leader: Ulrike Exner


Previous Project:

2007-2011: Modeling of natural fault systems at various scales (FWF Project P20092-N10)

2008-2011: Folded Sediments in the natural monument Sandpit Steinbrunn - Tectonics or gravitational slump? (H-1976/2008 Hochschuljubiläumsstiftung der Stadt Wien)

2006-2009: 3D Structural and Mechanical Modelling of Fault Geometries (FWF Hertha-Firnberg Project T325-N14)

Teaching:

Current Semester
Previous Semester

Selected Publications:

Schober, A. & Exner, U. (2011). 3D structural modelling of an outcrop-scale fold train using photogrammetry and GPS mapping. Austrian Journal of Earth Sciences 104/2, 73-79.

Grasemann, B., Exner, U. & Tschegg, C. (2011): Displacement-length scaling of brittle faults in ductile shear. Journal of Structural Geology 33, 1650-1661. doi:10.1016/j.jsg.2011.08.008

Frehner, M., Exner, U., Mancktelow, N.S. & Grujic, D. (2011): The not-so-simple effects of boundary conditions on models of simple shear. Geology 39, 8, 717-722, doi:10.1130/G31957.1

Rath, A., Exner, U., Tschegg, C., Grasemann, B., Laner, R. & Draganits, E. (2011): Diagenetic control of deformation mechanisms in deformation bands in a carbonate grainstone. AAPG Bulletin 95, 1369-1381.

Spahic, D., Exner, U., Behm, M., Grasemann, B., Haring, A. & Pretsch, H. (2011): Listric versus planar normal fault geometry: an example from the Eisenstadt-Sopron Basin (E Austria). International Journal of Earth Sciences 100, 1685-1695. doi:10.1007/s00531-010-0583-5

Exner, U. & Dabrowski, M. (2010): Monoclinic and triclinic 3D flanking structures around elliptical cracks. Journal of Structural Geology 32, 2009-2021. doi:10.1016/j.jsg.2010.08.002

Exner, U. & Grasemann, B. (2010): Deformation bands in gravels: Displacement gradients and heterogeneous strain. Journal of the Geological Society London 167, 905-913. doi: 10.1144/0016-76492009-076.

Passchier, C.W. & Exner, U. (2010): Digital mapping in structural geology – examples from Namibia and Greece. Journal of the Geological Society of India 75, 32-42.

Exner, U., Draganits, E. & Grasemann, B. (2009): Folding in Miocene, unconsolidated clastic sediments (Vienna basin, Austria) – gravitational versus tectonic forces. Trabajos de Geología, Universidad de Oviedo, 29 : 269-272

Grundtner, M.-L., Harzhauser, M., Mandic, O., Draganits, E., Gier, S., Exner, U. & Wagreich, M. (2009): Zur Sedimentologie der Sandgrube Steinbrunn (Pannonium, Österreich). Jahrbuch der Geologischen Bundesanstalt 149, 441-451.

Grasemann, B., Exner, U., O'Connor, A. & Wiesmayr, G. (2008): Offset of markers along slip surfaces in ductile shear zones. In: (Ed.) Declan DePaor, Making Sense of Shear (In honour of Carol Simpson), Journal of the Virtual Explorer, Electronic Edition, ISSN 1441-8142, volume 30, paper 8.

Exner, U., Grasemann, B. & Mancktelow, N. S. (2006): Multiple faults in ductile simple shear: analogue modeling of flanking structure systems. In: Buiter, S. J. H. & Schreurs, G. (eds). Analogue and Numerical Modelling of Crustal-Scale Processes. Geological Society, London, Special Publications 253, 381-395.

Exner, U., Mancktelow, N. S. & Grasemann, B. (2004): Progressive development of s-type flanking folds in simple shear. Journal of Structural Geology 26, 2191-2201.