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  1. Friedrich-Alexander-Universität
  2. Naturwissenschaftliche Fakultät
  3. Department Geographie und Geowissenschaften

Geozentrum Nordbayern EN

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  2. Prof. Dr. Daniel Köhn

Prof. Dr. Daniel Köhn

In page navigation: Prof. Dr. Daniel Köhn

    Prof. Dr. Daniel Köhn

    Prof. Daniel Koehn

    Prof. Dr. Daniel Köhn

    GeoZentrum Nordbayern
    Professur für Tektonik

    Schlossgarten 5
    91054 Erlangen, Germany
    • Phone number: +49 9131 85-22626
    • Email: daniel.koehn@fau.de
    • Website: https://www.gzn.nat.fau.de/strukturgeologie/staff/prof-dr-daniel-koehn/

    • Vorbereitung eines EU HORIZON Projekts zu Lagerstätten kritischer Metalle

      (Third Party Funds Group – Overall project)

      Term: 1. November 2023 - 30. November 2024
      Funding source: Bundesministerium für Bildung und Forschung (BMBF)
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    • Action for Research and Teaching Mining exploration Inclusive School

      (Third Party Funds Group – Sub project)

      Overall project: Action for Research and Teaching Mining exploration Inclusive School
      Term: 1. November 2021 - 31. October 2024
      Funding source: Europäische Union (EU)
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    • IVAC – International Virtual Academic Collaboration 2021-2022 DAAD International online course "Ethical Global Partnerships and Sustainable Resources"

      (Third Party Funds Single)

      Term: 1. October 2021 - 30. September 2022
      Funding source: Deutscher Akademischer Austauschdienst (DAAD)
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    • P13 – Modelling of the development of deformation bands in porous rocks and their influence on the permeability evolution of reservoirs

      (Third Party Funds Group – Sub project)

      Overall project: GRK 2423 FRASCAL: Skalenübergreifende Bruchvorgänge: Integration von Mechanik, Materialwissenschaften, Mathematik, Chemie und Physik (FRASCAL)
      Term: 1. April 2019 - 31. December 2027
      Funding source: DFG / Graduiertenkolleg (GRK)
      Abstract

      An extended DEM approach with multi-scale aggregates and healing algorithms will be used to study structures on the grain and single-band scale, whereas the reservoir scale flow properties will be determined with continuum models. Codes will be developed and tested simultaneously and natural examples from our rock collection and field examples can be used in the other projects. We will then develop an algorithm for the healing of fractured grains and will finally approach the large scale and look at the influence of deformation bands on the permeability of aquifers. Here we will vary mechanical content in bands, deformation conditions from shear to compaction, compactional and extensional shear, and finite strain.

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    Journal Articles

    • Beaudoin, N.E., Köhn, D., Aharonov, E., Billi, A., Daeron, M., & Boyce, A. (2025). Reconstruction of the Temperature Conditions of Burial-Related Pressure Solution by Clumped Isotopes Validates the Analysis of Sedimentary Stylolites Roughness as a Reliable Depth Gauge. Minerals, 15(1). https://doi.org/10.3390/min15010073
    • Kelka, U., Beaudoin, N.E., Lorenz, J., Köhn, D., Regenauer-Lieb, K., Boyce, A., & Chung, P. (2023). Zebra dolomites of the Spessart, Germany: implications for hydrothermal systems of the European Zechstein Basin. International Journal of Earth Sciences, 112(8), 2293-2311. https://doi.org/10.1007/s00531-023-02346-x
    • Mathur, B., Prabhakaran, R., & Köhn, D. (2023). Evolving geometries, topologies, and apertures in fracture networks: Quantitative insights from lattice modeling. Forces in Mechanics, 12. https://doi.org/10.1016/j.finmec.2023.100197
    • Wu, J., Fan, T., Gomez-Rivas, E., Cao, Q., Travé, A., Gao, Z.,... Bons, P.D. (2023). Relationship between stylolite morphology and the sealing potential of stylolite-bearing carbonate cap rocks. Geological Society of America Bulletin, 135(3-4), 689-711. https://doi.org/10.1130/B36297.1
    • Bons, P.D., Cao, D., De Riese, T., Gonzalez-Esvertit, E., Köhn, D., Naaman, I.,... Gomez-Rivas, E. (2022). A review of natural hydrofractures in rocks. Geological Magazine. https://doi.org/10.1017/S0016756822001042
    • Köhn, D., Kelka, U., Toussaint, R., Siegel, C., Mullen, G., Boyce, A., & Piazolo, S. (2022). Outcrop scale mixing enhanced by permeability variations: the role of stationary and travelling waves of high saturation indices. Geological Magazine. https://doi.org/10.1017/S001675682200070X
    • Köhler, S., Duschl, F., Fazlikhani, H., Köhn, D., Stephan, T., & Stollhofen, H. (2022). Reconstruction of cyclic Mesozoic-Cenozoic stress development in SE Germany using fault-slip and stylolite inversion. Geological Magazine. https://doi.org/10.1017/S0016756822000656
    • Köhn, D., Köhler, S., Toussaint, R., Ghani, I., & Stollhofen, H. (2022). Scaling analysis, correlation length and compaction estimates of natural and simulated stylolites. Journal of Structural Geology, 161. https://doi.org/10.1016/j.jsg.2022.104670
    • Molli, G., Köhn, D., Allacorta, L., Danese, L., Zampelli, S., & Zazzeri, M. (2022). Superimposed structures, incremental strain and deformation path from field data to modelling: A case study from the Alpi Apuane metamorphic core complex (NW Tuscany, Italy). Journal of Structural Geology, 161. https://doi.org/10.1016/j.jsg.2022.104676
    • Centrella, S., Beaudoin, N.E., Köhn, D., Motte, G., Hoareau, G., & Callot, J.P. (2022). How fluid-mediated rock transformations can mimic hydro-fracturing patterns in hydrothermal dolomite. Marine and Petroleum Geology, 140. https://doi.org/10.1016/j.marpetgeo.2022.105657
    • Smith, R., Lesueur, M., Kelka, U., Poulet, T., & Köhn, D. (2022). Using fractured outcrops to calculate permeability tensors: implications for geothermal fluid flow and the influence of seismic-scale faults. Geological Magazine. https://doi.org/10.1017/S0016756822000309
    • Gomez-Rivas, E., Martin-Martin, J.D., Bons, P.D., Köhn, D., Griera, A., Trave, A.,... Neilson, J. (2022). Stylolites and stylolite networks as primary controls on the geometry and distribution of carbonate diagenetic alterations. Marine and Petroleum Geology, 136. https://doi.org/10.1016/j.marpetgeo.2021.105444
    • Köhn, D., Piazolo, S., Beaudoin, N.E., Kelka, U., Spruženiece, L., Putnis, C.V., & Toussaint, R. (2021). Relative rates of fluid advection, elemental diffusion and replacement govern reaction front patterns. Earth and Planetary Science Letters, 565. https://doi.org/10.1016/j.epsl.2021.116950
    • Jess, S., Köhn, D., Fox, M., Enkelmann, E., Sachau, T., & Aanyu, K. (2020). Paleogene initiation of the Western Branch of the East African Rift: The uplift history of the Rwenzori Mountains, Western Uganda. Earth and Planetary Science Letters, 552. https://doi.org/10.1016/j.epsl.2020.116593
    • Beaudoin, N.E., Labeur, A., Lacombe, O., Köhn, D., Billi, A., Hoareau, G.,... Callot, J.-P. (2020). Regional-scale paleofluid system across the Tuscan Nappe-Umbria-Marche Apennine Ridge (northern Apennines) as revealed by mesostructural and isotopic analyses of stylolite-vein networks. Solid Earth, 11(4), 1617-1641. https://doi.org/10.5194/se-11-1617-2020
    • Beaudoin, N., Lacombe, O., Köhn, D., David, M.E., Farrell, N., & Healy, D. (2020). Vertical stress history and paleoburial in foreland basins unravelled by stylolite roughness paleopiezometry: Insights from bedding-parallel stylolites in the Bighorn Basin, Wyoming, USA. Journal of Structural Geology, 136. https://doi.org/10.1016/j.jsg.2020.104061
    • Köhn, D., Piazolo, S., Sachau, T., & Toussaint, R. (2020). Fracturing and Porosity Channeling in Fluid Overpressure Zones in the Shallow Earth's Crust. Geofluids, 2020. https://doi.org/10.1155/2020/7621759
    • Beaudoin, N., Lacombe, O., David, M.-E., & Köhn, D. (2020). Does stress transmission in forelands depend on structural style? Distinctive stress magnitudes during Sevier thin-skinned and Laramide thick-skinned layer-parallel shortening in the Bighorn Basin (USA) revealed by stylolite and calcite twinning paleopiezometry. Terra Nova. https://doi.org/10.1111/ter.12451
    • Aleksans, J., Köhn, D., Toussaint, R., & Daniel, G. (2019). Simulating Hydraulic Fracturing: Failure in Soft Versus Hard Rocks. Pure and Applied Geophysics. https://doi.org/10.1007/s00024-019-02376-0
    • Beaudoin, N., Lacombe, O., Roberts, N.M., & Köhn, D. (2019). U-Pb dating of calcite veins reveals complex stress evolution and thrust sequence in the Bighorn Basin, Wyoming, USA. Geology, 47(9), e481-e481. https://doi.org/10.1130/G46606Y.1

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