María-Gema Llorens

Contributions to conferences

2020:

    • De Riese T, Bons P, Gomez-Rivas E, Griera A, Llorens MG, Weikusta I. Influence of initial preferred orientations on strain localisation and fold patterns in non-linear viscous anisotropic materials. Virtual presentation. GeoUtrecht2020. August 24-26, 2020

    • Prior D, Bons P, Cross A, Durham W, Fan S, Goldsby D, Hager T, Llorens MG, Qi C. Flow laws for ice sheet modelling: what do experiments tell us?. Scientific Committee on Antarctic Research (SCAR) Online Conference, August 5, 2020.

    • Llorens, MG, Griera, A, Gomez-Rivas, E, Bons, PD, Weikusat, I, Prior, DJ and Lebensohn, R. Insights into seismic anisotropy of temperate ice during simple shear deformation. “Llorens_tecworkshop.pptx”. Tectonics Community Science Workshop 2020, July 21, 2020. https://doi.org/10.6084/m9.figshare.12681914.v1.

    • Gomez-Rivas, E., Llorens, M.-G., Griera, A., Bons, P.D. and Lebensohn, R. Deformation and dynamic recrystallisation of polycrystalline rocks: examples of full-field numerical simulations of evaporites, polar ice and partially molten rocks. IUGS TecTask Workshop «Structural Geology in the 21st Century». Kharagpur, India. February 2020. Keynote presentation.

    • Llorens, M.-G., Griera, A., Bons, P.D., Gomez-Rivas, E., Weikusat, E., Prior, D., Lebenshon, R.A. The effect of melt on seismic anisotropy of ice polycrystalline aggregates. European Geosciences Union EGU Online 4-8 May 2020.

    • de Riese, T., Bons, P.D., Gomez-Rivas, E., Griera, A., Llorens, M.-G. and Weikusat, I. Influence of initial preferred orientations on strain localisation and fold patterns in non-linear viscous anisotropic materials. European Geosciences Union EGU Online 4-8 May 2020.

    • García-Castellanos, D., Liu, W., Lai, Z., Jiménez-Munt, I., Struth, L., Rodríguez-Rodríguez, L., Hu, G., Wang, P. and Llorens, M.-G. Feedbacks between internal fluvial drainage and high-plateau tectonic growth. A mechanistic perspective. European Geosciences Union EGU Online 4-8 May 2020.

    • Bons, P.D., de Riese, T., Gomez-Rivas, E., Griera, A., Llorens, M.-G. and Weikusat, I. Stress and strain rate variations and strain localisation in ice: Another complexity to be considered apart from a simple enhancement factor. European Geosciences Union EGU Online 4-8 May 2020.

    • Llorens, M.G., Griera, A., Gomez-Rivas, E., Bons, P.D., Weikusat, I., Prior, D. and Lebenhson, R. Insights into seismic anisotropy of temperate ice during simple shear deformation. International Geological Congress. New Delhi, India. Póster. November 2020.

    • Gomez-Rivas, E., Griera, A., Gómez-Gras, D., Playà, E., Travé, A. and Llorens, M.G. Fracturing and sealing in a subsurface salt body: the Súria anticline (SE Pyrenees). 3rd Conference of the Arabian Journal of Geosciences. Sosse, Tunisia. November 2020.

2018:

    • Llorens, M.-G., Griera, A., Steinbach, F., Bons, P.D., Gomez-Rivas, E., Jansen, D., Roessiger, J., Lebensohn, R.A., Weikusat, I. Polycrystalline ice viscoplastic deformation in pure and simple shear. GeoMod 2018. Barcelona, Spain. October, 2018.

    • Llorens, M.-G., Gomez-Rivas, E., Ganzhorn, A.C., Griera, A., Steinbach, F., Roessiger, J., Labrousse, L., Walte, N.P., Bons, P.D. Rheology of partially molten rocks: a numerical approach. GeoMod 2018. Barcelona, Spain. October, 2018.

    • de Riese, T., Evans, L.A., Gomez-Rivas, E., Griera, A., Lebensohn, R.A., Llorens, M.-G., Ran, H., Sachau, T., Weikusat, I., Bons, P.D. Numerical modeling of shear localisation in anisotropic materials. GeoMod 2018. Barcelona, Spain. October, 2018.

    • Gomez-Rivas, E., Griera, A., Llorens, M.-G., Bons, P.D., Lebensohn, R.A., Ran, H., Sachau, T., Piaozlo, S. Subgrain rotation recrystallisation of dry halite during simple shear deformation: a numerical approach. GeoMod 2018. Barcelona, Spain. October, 2018.

    • Griera, A., Gomez-Rivas, E., Llorens, M.-G. Microstructural evolution of polycrystalline olivine: influence of the deformation history on seismic anisotropy. GeoMod 2018. Barcelona, Spain. October, 2018.

    • Pior, D.J., Bons P., Craw, L., Cross, A., Durham, W.B., Eccles, J., Hulbe, C., Goldsby, D.L., Golding, N., Griera, A., Kim, D., Llorens, M.-G., Lutz, F., Mitchell, T., Peternell, M., Platt, J., Qi, C., Seidemann, M., Sheng, F., Treverrow A., Vaughan, M. and Wilson, C. Dynamic recrystallisation and its effect on ice deformation: the future depends on understading this! TIGeR Conference: coupling between Metamorphism and Deformation 2018, Curtin University, Australia.

    • Jessell, M.W., Bons, P., Griera, A., Finch, M., Gomez-Rivas, E., Piazolo, S., Wheeler, J., Llorens M.-G., Steinbach, F., Khoen, D., Ran, H., Evans, L., Lebensohn, R. Numerical simulations of deformation and metamorphism: are we there yet? TIGeR Conference: coupling between Metamorphism and Deformation 2018, Curtin University, Australia.

2017:

  • Llorens, M.-G., Griera, A., Steinbach, F., Bons, P.D., Gomez-Rivas, E., Jansen, D., Roessiger, J., Lebensohn R.A., and Weikusat I. Effect of vorticity on polycrystalline ice deformation. European Geosciences General Assembly 2017 (EGU). Vienna, Austria. (PICO poster).

  • Bons, P.D., Jansen, D., Llorens, M.–G., de Riese, T., Sachau, T., Steinbach, F. and Weikusat, I. Folds and shear zones in the Greenland Ice Sheet. Deformation mechanisms, Rheology and Tectonics 2017 (DRT). Inverness, Scotland, U.K. (Talk).

  • Llorens, M.-G., Griera, A., Steinbach, F., Bons, P.D., Gomez-Rivas, E., Jansen, D., Roessiger, J., Lebensohn R.A., and Weikusat I. Effect of vorticity on polycrystalline ice deformation. Deformation mechanisms, Rheology and Tectonics 2017 (DRT). Inverness, Scotland, U.K. (Talk).

  • Gomez-Rivas, E., Griera, A., Llorens, M.–G., Bons, P.D. and Lebensohn, R.A. Full-field numerical simulations of subgrain rotation recrystallisation during shearing of dry halite polycrystals. Deformation mechanisms, Rheology and Tectonics 2017 (DRT). Inverness, Scotland, U.K. (Poster).

  • Griera, A., Llorens, M.-G. and Gomez-Rivas, E. The influence of the deformation history on the microstructural evolution of polycrystalline olivine and how it affects the interpretation of mantle seismic anisotropy. Deformation mechanisms, Rheology and Tectonics 2017 (DRT). Inverness, Scotland, U.K. (Poster).

  • de Riese, T., Bons, P.D., Gomez-Rivas, E., Griera, A., Llorens, M.-G., Ran, H., and Steinbach, F. Shear localisation in homogeneous, anisotropic materials. Deformation mechanisms, Rheology and Tectonics 2017 (DRT). Inverness, Scotland, U.K. (Talk).

  • Finch, M., Bons, P.D., Gomez-Rivas, E., Grieera, A., Llorens, M.-G., Ran, H. and Steinbach, F. The ephemeral development of shear bands in mylonites. Deformation mechanisms, Rheology and Tectonics 2017 (DRT). Inverness, Scotland, U.K. (Poster).

2016:

  • Steinbach, F., Weikusat, I., Bons, P.D., Griera, A., Llorens, M.-G. and Roessiger J. Microdynamical simulations of polyphase deformation and recrystallisation processes in polar ice and firn International Partnerships in Ice Core Science IPICS Conference 2016. Hobart, Australia (Poster).

  • Bons P.D., Finch, M., Griera, A., Gomez-Rivas, E., Llorens, M.-G., Steinbach F. and Weikusat, I. The importance of strain localisation in shear zones. Geophysical Research Abstracts Vol. 18, EGU2016-14333. European Geosciences General Assembly (EGU). Vienna, Austria. (Oral presentation).

  • Steinbach, F., Weikusat, I., Bons, P.D., Griera, A., Kerch, J., Kuiper E.J and Llorens, M.-G. Numerical simulations and implications of air inclusions on the microdynamics of ice and firn. Geophysical Research Abstracts Vol. 18, EGU2016-5762-1. European Geosciences General Assembly (EGU). Vienna, Austria. (Oral presentation).

  • Jansen, D., Llorens, M.-G., Westhoff, J., Steinbach, F., Bons, P.D., Kipfstuhl, S., Griera, A. and Weikusat, I. Small-scale disturbances in the stratigraphy of ice cores: observations and numerical model simulations. Geophysical Research Abstracts Vol. 18, EGU2016-17724-1. European Geosciences General Assembly (EGU). Vienna, Austria. (Oral presentation).

2015:

  • Griera, A., Gomez-Rivas, E., Llorens, M.-G., Bons, P.D. and Lebensohn, R. Microstructural evolution of polycrystalline materials in simple shear: insights from full-field numerical simulations. Geotectonic Research Vol. 97, 37-39. 20th International Conference on Deformation Mechanisms, Rheology and Tectonics. Aachen, Germany. (Oral presentation).

  • Llorens, M.-G., Griera, A., Weikusat, I., Bons, P.D., Lebensohn, R., Evans, L. and Piazolo, S. Computational analysis of dynamic recrystallization of ice aggregates during viscoplastic deformation. Geophysical Research Abstracts Vol. 17, EGU2015-7466. European Geosciences General Assembly (EGU). Vienna, Austria. (PICO poster).

  • Llorens, M.-G., Griera, A., Bons, P.D, Gomez-Rivas, E. and Weikusat, I. Stress and strain evolution of folding rocks. Geophysical Research Vol. 17, EGU2015-7518. European Geosciences General Assembly (EGU). Vienna, Austria. (Poster).

  • Steinbach, F., Weikusat, I., Bons, P.D., Griera, A., Llorens, M.-G. and Roessiger, J. Numerical modelling of polyphase deformation and recrystallisation in polar firn and ice. Geophysical Research Abstracts Vol. 17, EGU2015-1025. European Geosciences General Assembly (EGU). Vienna, Austria. (PICO poster).

  • Jansen, D., Llorens, M.-G., Westhoff, J., Steinbach, F., Bons, P.D., Kipfstuhl, S., Griera, A. and Weikusat, I. Small scale folding observed in the NEEM ice core. Geophysical Research Abstracts Vol. 17, EGU2015-15530-1. European Geosciences General Assembly (EGU). Vienna, Austria. (PICO poster).

  • Bons, P.D., Evans, L., Gomez-Rivas, E., Griera, A., Jessell, M.W., Lebensohn, R., Llorens, M.-G., Peternell, M., Piazolo, S., Weikusat, I. and Wilson, C.J.L. Modelling of deformation and recrystallisation microstructures in rocks and ice. Geophysical Research Vol. 17, EGU2015-9705-2. European Geosciences General Assembly (EGU). Vienna, Austria. (Oral presentation).

2014:

  • Llorens, M.-G., Griera, A., Weikusat, I., Bons, P.D., Roessiger, J., Evans, L. and Lebensohn, R. FFT simulation of dynamic recrystallization in polar ice. Geophysical Research Abstracts, Vol. 16, 12880. European Geosciences General Assembly (EGU). Vienna, Austria.(Poster).

  • Llorens, M.-G., Bons, P.D., Griera, A., and Gomez-Rivas, E. Unfolding single- and multilayers. Geophysical Research Abstracts, Vol. 16, 12602. European Geosciences General Assembly (EGU). Vienna, Austria. (Poster).

  • Llorens, M.-G., Griera, A., Weikusat, I. and Bons, P.D. FFT simulation of dynamic recrystallization in polar ice. ELLE Workshop on Numerical Modelling of Microstructures. Tübingen, Germany. (Oral presentation).

2013:

  • Llorens, M.-G., Bons, P.D., Griera, A. and Gomez-Rivas, E. Can do folds unfold?. DMG/GV-conference (Deutsche Mineralogische Gesellschaft (DMG, German Mineralogical Society), the Geologische Vereinigung e.V. (GV, German Geological Union). Tübingen, Germany. (Poster).

  • Llorens, M.-G., Bons, P.D., Griera, A. and Gomez-Rivas, E. Mechanics of fold development in pure and simple shear. 15th Annual Conference of the International Association for Mathematical Geosciences. Extended abstract published on Mathematics of Planet Earth, Lecture Notes in Earth System Sciences, 36, pp. 763-766. Springer. Madrid, Spain. (Oral presentation).

2011:

  • Llorens, M.-G., Bons, P.D., Griera, A. and Gomez-Rivas, E. Single layer folding in non-coaxial conditions up to high strain. Deformation mechanisms, Rheology and Tectonics (DRT). Oviedo, Spain. (Poster). Best student poster award.

  • Llorens, M.-G., Bons, P.D., Gomez-Rivas, E. and Griera, A. Folds in shear zones: unraveling rock properties and deformation conditions using non-linear viscous numerical simulations. Penrose Conference on Deformation Localization in Rocks: New Advances, Geological Society of America. Cadaqués and Cap de Creus Peninsula, Spain. (Poster).

  • Llorens, M.-G., Bons, P.D., Griera, A. and Gomez-Rivas, E. Numerical simulation of layer folding in simple shear. Geophysical Research Abstracts, Vol. 13, 10836. European Geosciencies Union General Assembly. Vienna, Austria. (Poster).

  • Llorens, M.-G., Bons, P.D., Griera, A. and Gomez-Rivas, E. Numerical simulation of viscous single layer folding in simple shear. MicroDICE Microdynamic Modelling of Ice and related materials workshop. Glasgow, Scotland. (Oral presentation).

2010:

  • Llorens, M.-G., Bons, P.D., Griera, A., Gomez-Rivas, E. and Scholl, M. Numerical simulations of folding and unfolding in viscous multilayers. ELLE Workshop on Numerical Modelling of Microstructures. Tübingen, Germany. (Oral presentation).