Header image  
Geologist  
 
    HOME
 
Publications
  • Koehn, D. and Passchier, C.W., (2000). Shear sense indicators in Striped Bedding-Veins. Journal of Structural Geology , 22/8, 1141-1151.
  • Koehn, D., Hilgers, C., Bons, P.D., Passchier, C.W., (2000). Numerical simulation of fibre growth in antitaxial strain fringes. Journal of Structural Geology, 22/9, 1311-1324.
  • Koehn, D., Aerden, D.G.A.M., Bons, P.D., Passchier, C.W., (2001). Computer experiments to investigate complex fibre patterns in natural antitaxial strain fringes. Journal of Metamorphic Geology, 19, 217-232.
  • Koehn, D., Bons, P.D., Hilgers, C., Passchier, C.W., (2001) Animations of progressive fibrous vein and fringe formation. Journal of the Virtual Explorer, vol. 3, Animations in Geology - visualizing the Earth.
  • Hilgers, C., Koehn, D., Bons, P.D. & Urai, J.L., (2001). Development of crystal morphology during unitaxial growth in a progressively opening fracture: II. Numerical simulations of the evolution of antitaxial fibrous veins. Journal of Structural Geology, 23, 873-885.
  • Koehn, D., Bons, P.D., Passchier, C.W., (2003). Development of antitaxial strain fringes during non-coaxial deformation: an experimental study. Journal of Structural Geology 25, 263-275.
  • Koehn, D., Arnold, J., Jamtveit, B., Malthe-Sørenssen, A., (2003), Instabilites in stress corrosion and the transition to brittle failure. American Journal of Science 303, p 956-971.
  • Koehn, D., Arnold, J., Jamtveit, B., Malthe-Sørenssen, A., (2003), Free Surface Dissolution of Stressed Solids, Journal of the Virtual Explorer 15.
  • Koehn, D., Arnold, J., (2003), Fracturing in Polycrystalline Materials. Journal of the Virtual Explorer 15.
  • Walte, N., Bons, P.D., Passchier, C.W., Koehn, D., (2003), Disequilibrium melt distribution during static recrystallization. Geology, 31,1009-1012.
  • Becker, J.K., D. Koehn, N. Walte, M. Jessell, P.D. Bons, C.W. Passchier, L. Evans, (2003). Numerical simulation of disequilibrium structures in solid-melt systems during grain-growth, Journal of the Virtual Explorer 15.
  • Koehn, D., Dysthe, D.K., Jamtveit, B., (2004), Transient dissolution patterns on stressed crystal surfaces. Geochimica Cosmochimica Acta, 68, 3317-3325.
  • Koehn, D., Arnold, J., Passchier, C.W., (2005), Fracture and Vein Patterns as Indicators of Deformation History, a Numerical Study. In Gapais, Brun and Cobbold (eds), Deformation Mechanisms, Rheology and Tectonics, from Minerals to the Lithosphere. Journal of the Geological Society of London, Special Publications, 243, 11-24.
  • Koehn, D., Malthe-Sørenssen, A., Passchier, C.W. (2006). The structure of reactive grain boundaries under stress containing confined fluids. Journal of Chemical Geology.
  • Iacopini, D., Passchier, C.W., Koehn, D., Carosi, R., (2007) Fabric attractors in general triclinic flow systems and their application to high strain shear zones: A dynamical system approach. Journal of Structural Geology 29, 298-317.
  • Koehn, D., Renard, F., Toussaint, R., Passchier, C.W. (2007) Growth of stylolite teeth patterns depending on normal stress and finite compaction. Earth and Planetary Science Letters 257, 582-595.
  • Koehn, D.; Aanyu, K., Haines, S., Sachau, T., (2008) Rift nucleation, rift propagation and the creation of basement micro-plates within active rifts, Tectonophysics 458, 105-116.
  • Arzlan, A., Passchier, C.W., Koehn, D., (2008) Foliation boudinage. Journal of Structural Geology, 30, 291-309.
  • Ebner, M., Koehn, D., Toussaint, R., Renard, F., Schmittbuhl, J., (2009) Scaling of natural stylolites and their use as stress-depth gauges. Earth and Planetary Science Letters 277, 394-398.
  • Ebner, M., Koehn, D., Toussaint, R., Renard, F., (2009) The influence of rock heterogeneity on the scaling properties of simulated and natural stylolites. Journal of structural Geology 31, 72-82.
  • Xavier, M., Passchier, C.W., Koehn, D., (2009) Modelling of segment structures; boudins, bone-boudins, mullions and related single- and multiphase deformation features. Journal of Structural Geology, 31, 817-830.
  • Sachau, T.; Koehn, D., (2010, IJES, DOI 10.1007/s00531-010-0513-6) Faulting of the lithosphere during extension and related rift-flank uplift, a numerical study.
  • Koehn, D., Lindenfeld, M., Rümpker, G., Aanyu, K., Haines, S., Passchier, C.W., Sachau, T., (2010, IJES, DOI 10.1007/s00531-010-0525-2) Active transsection faults in rift transfer zones: Evidence for complex stress fields and implications for crustal fragmentation processes in the western branch of the East African Rift.
  • Ebner, M., Toussaint, R., Schmittbuhl, J., Koehn, D., Bons, P.D., (in press, JGR) Anisotropic scaling of tectonic stylolites: a fossilized signature of the stress field.
  • Ebner, M., Piazolo, S.,Renard, F., Koehn, D., (in press, JSG) Stylolite interfaces and surrounding matrix material: Nature and role of heterogeneities in roughness and microstructural development.
  • Link, K., Koehn, D., Tiberindwa, Barifaijo, Aanyu, K., Barth, M., Foley, S. (in press, IJES) Continuous cratonic crust between the Congo and Tanzania Archaean terranes of western Uganda.
Book
  • Microdynamics Simulation, (2008), Springer Lecture Series in Earth Sciences Vol 106, Bons, P.; Koehn, D.; Jessell, M.W. 406pp
Edited Special Issue
  • Numerical simulation of microstructures, Journal of the Virtual Explorer, Volume 15, editors Koehn, D. and Malthe-Sørenssen, A., 2004.
Invited Workshops
  • Koehn, D., 2003, Numerical Modeling of Microstructures: from the brittle to the ductile regime. Examples using the programming environment "Elle". 3-day shortcourse-lecture and the Unversity of Pisa, Italy.
  • Koehn, D., Bons, P.D., 2004. Numerical simulation of microstructures, 1day workshop, TSK 10, Aachen, Germany
  • Koehn, D., 2008. Microdynamics simulation, TSK 12, Karlsruhe, Germany.
  • Koehn, D., 2008. Modeling physico-chemical interactions, fracturing and fluid flow in rocks, Fourth Marie Curie Summer School, Knowledge Based Materials, „Porous and Aqueous Materials“.
Invited Talks
  • Koehn, D., Dysthe, D.K., Jamtveit, B., Malthe-Sørenssen, A., 2002 Dissolution of Stressed Solids. Kongsberg Seminar, Norway.
  • Koehn, D. , 2003. Fracture and vein development in sedimentary layers, seminar University of Tübingen
  • Koehn, D., Renard, F., 2005. Modelling the formation of stylolites as a competition between elastic forces, surface tension and noise. Goldschmidt Conference, Moscow, Idaho, USA.
  • Koehn, D., Renard, F., 2005. Pressure Solution. Geomaterials Conference, (Gottstein, Raabe, Urai) Aachen.
  • Koehn, D., (2007) Stress driven dissolution and effects on rock deformation, Kongsberg Seminar, Norway.
  • Koehn, D., (2007) Keynote Lecture, East African Rift Conference (EARS-07), Kampala, Uganda, The development of microplates within rift systems.
  • Koehn, D., (2007) Stylolites, the hidden stress gauge. Seminar, University of Heidelberg.
  • Koehn, D., (2008) Keynote Lecture, IGC Oslo, Modelling of stylolites and their use as in-situ palaeo-stress gauges
Conference Abstracts
  • Koehn, D., Bons, P.D. & Passchier, C.W. (1998) Modelling the tracking ability of fibrous crystals. GSA Abstracts w. Prog. 30(7), p. A-197.
  • Koehn, D., Passchier, C.W. & Bons, P.D. (1999) Simulation of fibre growth in strain fringes. STSG, Schweizerisches Tektoniktreffen, Lausanne (Switzerland), Feb.
  • Koehn, D., Passchier, C.W. & Bons, P.D. (1999) Kinematic analysis of strain fringes. EUG 10, Strasbourg (France), March.
  • Koehn, D., Passchier, C.W. (1999) A Classification for Banded-Bedding-Parallel-Veins. Def. mech Conf., Neustadt a.d. Weinstrasse, Germany, 22-24 March.
  • Koehn, D., Bons, P.D., Passchier, C.W., Aerden, D.G.A.M., (1999) Interpretation of fibre growth in strain fringes, GSA Abstracts w. Prog.
  • Koehn, D., Bons, P.D., Passchier, C.W., (2000) Numerical and experimental modelling of strain fringes, Geoscience 2000, Manchester, Abstract Volume 126.
  • Koehn, D., Aerden, D.G.A.M., Bons, P.D., Passchier, C.W. (2000). A new method to interpret fibre patterns in antitaxial strain fringes. TSK 8, Freiburg.
  • Koehn, D., Passchier, C.W., (2000). Shear sense indicators in Striped Bedding-Veins. TSK8, Freiburg.
  • Koehn, D., Bons, P.D., Hilgers, C., Passchier, C.W. (2001) Numerical modelliing of crystal textures in dilation sites. DRMT-Conference Workshop, Utrecht.
  • Koehn, D., Bons, P.D., Passchier, C.W., (2001) A front-tracking program to model fibrous microstructures in strain fringes, EUG XI, Strasbourg.Abstracts p666.
  • Koehn, D., Dysthe, D.,(2001) A new apparatus to measure stresses in salts undergoing dissolution-precipitation creep, Analogue Workshop GFZ Potsdam, Germany.
  • Koehn, D., Jamtveit, B., Malthe-Sørenssen, A., (2001) The effect of dissolution on fracture development in an elastic medium. Kongsberg Seminar, Norway.
  • Koehn, D., Jamtveit, B., Dysthe, D.K., (2002) Instabilities of stressed crystal surfaces in contact with a fluid. AGU Fall Meeting.
  • Koehn , D., Jochen Arnold, Dag K. Dysthe, Bjørn Jamtveit , Cees W. Passchier, Anders Malthe-Sørenssen (2003) Comparison between numerical and experimental modelling of corrosion patterns on stressed crystal surfaces. DRMT-Conference, St. Malo.
  • Koehn , D., and Dag Dysthe, (2003) Instabilities on stressed crystal surfaces, DRMT-Conference, ST. Malo.
  • ARNOLD, J., BECKER, J.K., KoeHN, D., MALTHE-SØRENSSEN, A. & PASSCHIER, C.W., DRT 2003: Competition of driving forces caused by elastic and surface energies during phase transition of stressed minerals ­ implications for deep earthquakes.
  • N. Walte, P.D. Bons, C.W. Passchier, D. Koehn, J. Arnold (2003) DISEQUILIBRIUM MELT DISTRIBUTIONS DURING STATIC RECRYSTALLISATION AGU/EGS/EUG Meeting Nice.
  • Koehn, D. and Arnold J. (2003) Instabilities in Stress Corrosion and Associated Brittle Failure. AGU/EGS/EUG Meeting Nice.
  • Koehn, D., Arnold, J., Passchier, C.W. 2004. The use of fracture and vein patterns as indicators for complex deformation histories. TSK Meeting Aachen.
  • Koehn, D., 2004, The influence of elastic stresses and fluid pressure on the structure of grain boundaries. Goldschmidt Conference, Copenhagen.
  • Iacopini, D., Passchier, C., Koehn, D., Carosi, R., 2004. Fabric attractor: from monoclinic to triclinic systems , IGC Florence, Italy.
  • Koehn, D., Arnold, J., Jamtveit, B., Malthe-Sorenssen, A., Passchier, C., Piazolo, S., Sachau, T., 2004. Phase boundary structures and their relation to stress. IGC Florence, Italy.
  • Bisschop, J., Koehn, D., Jamtveit, B., Dysthe, D.K., 2004. In-Situ Observations of dissolution-precipitation processes of stressed crystal surfaces: The effects of gravity and scale of observation. IGC Florence, Italy.
  • Didier, C., Bisschop, J., Koehn, D., Jamtveit, B., Podladchikov, Y., Dysthe, D.K., 2004. Traveling patterns on a stressed crystal surface: a linear stability analysis. IGC Florence, Italy.
  • Isselhorst, B., Koehn, D., Passchier, C.W., 2005. Experimental modelling of crystal growth in syntectonic veins. DRT Zürich.
  • Arslan, A., Koehn, D., Passchier, C.W., 2005. Numerical modelling of foliation boudinage. DRT Zürich.
  • Arslan, A., Passchier, C., Koehn, D., 2005.. Foliation boudinage. DRT Zürich.
  • Molli, G., Allacorta, L., Koehn, D., 2005. Complex antitaxial strain fringes from the Eastern Alpi Apuane, ITALY: From filed data to numerical simulation of strain and deformation paths. DRT Zürich.
  • Iacopini, D., Passchier, C.W., Koehn, D., Carosi, R., 2005. Do we need triclinic flow to explain high strain shear zones ? DRT Zürich.
  • Koehn, D., Renard, F., Sachau, T., 2005. Roughening of stylolite surfaces. DRT Zürich.
  • Sachau, T., Koehn, D., Passchier, C.W., 2005. Simulation of phase-boundary structures due to structural phase transitions. DRT Zürich.
  • Koehn, D., Renard, F., Toussaint, R., Schmittbuhl, J., Passchier, C., (2006) Die dynamische Entwicklung von Styloliten. TSK 11.
  • Arslan, A., Passchier, C., Koehn, D., (2006) Foliation boudinage, TSG Manchester.
  • Sachau, T., Koehn, D., (2006) Influence of viscosity on the growth of high pressure phases in computer experiments. TSK 11.
  • Koehn, D., Aanyu, K., Haines, S., Sachau, T., (2006) Rifting and the creation of microplates. AGU San Francisco.
  • Sachau, T., Koehn, D., (2007) Modeling extension-related vertical movements on the example of the Rwenzori Mountains, EGU General Assembly.
  • Koehn, D., Aanyu, K., Haines, S., Sachau, T., (2007) Rift nucleation, rift propagation and the creation of basement micro-plates within active rifts. EGU General Assembly.
  • Ebner M., Koehn D, Renard F., Toussaint R. (2007); Scaling of natural and simulated stylolites and their use as stress gauges. (poster presentation) EGU General Assembly.
  • Arslan, A., Koehn, D., Passchier, C. (2007) Foliation boudinage: natural examples and numerical modeling, DRT Milano.
  • Xavier, M., Passchier, C., Koehn, D., (2007) Modelling of boudin neck rotation: constrains of the total strain, the conditions of the flow and the relative viscosity of the host-rock and the veins on the shape of the reworked boudins. DRT Milano.
  • Koehn, D., Ebner, M., Renard, F., Toussaint, R. (2007) Stylolites, the hidden stress gauge? DRT Milano.
  • Koehn, D., Passchier, C. (2007) Digital Mapping. DRT Milano.
  • Koehn, D., Aanyu, K., Haines, S., Sachau, T., (2007) Rift nucleation and rift propagation. DRT Milano.
  • Ebner M., Koehn D, Renard F., Toussaint R. (2007); Scaling of natural and simulated stylolites and their use as stress gauges. (poster presentation) 20th Kongsberg Seminar, Kongsberg, Norway
  • Ebner M., Koehn D, Toussaint R., Renard F. & Schmittbuhl J. (2007); Scaling of natural and simulated Stylolites. (invited talk) Colloquium of the Austrian Geological Society, Vienna, Austria.
  • Ebner M., Koehn D, Toussaint R., Renard F. & Schmittbuhl J. (2007); Scaling of natural stylolites and their use as stress-depth gauges. (oral presentation) AGU Fall Meeting 2007, San Francisco, USA.
  • Koehn, D., Lindenfeld, M., Ruempker, G., Aanyu, K. (2008) Abnormal fault populations in rift-transfer settings, EGU General Assembly.
  • Koehn, D., Lindenfeld, M., Ruempker, G., Aanyu, K., Haines, S., Sachau, T., (2008) Local inversion triggered by micro-plate rotation. TSK structural geology meeting Karlsruhe.
  • Koehn, D., Aanyu, K., Rümpker, G., Lindenfeld, M., Haines, S., Stamps, S., Calais, E., Sachau, T., (2008). Neotectonics of teh Albertine rift and the Rwenzori mountains, Uganda. RiftLink meeting, Neustadt.
  • Sachau, T., Koehn, D., Aanyu, K., Haines, S., (2008). Micro-plate capturing and related rift flank uplift. RiftLink meeting, Neustadt.
  • Aanyu, K., Koehn, D., Link, K., Haines, S., Passchier, C., Sachau, T., (2008). Basement geology of the Rwenzori mountains, Uganda. RiftLink meeting, Neustadt.
  • Haines, S., van der Pluijm, B., Koehn, D., (2008) Formation of Authigenic and Detrital Clay Gouges – Examples from the US Cordillera and Uganda’s Rwenzori Mountains, East African Rift. GSA meeting.
  • Koehn, D., 2008, Mountain building in extensional terrains, Geo 2008, Aachen.