Articles | Volume 10, issue 1
https://doi.org/10.5194/tc-10-359-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/tc-10-359-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
12 Feb 2016
Research article |
| 12 Feb 2016
Small-scale disturbances in the stratigraphy of the NEEM ice core: observations and numerical model simulations
Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
M.-G. Llorens
Department of Geosciences, Eberhard Karls University Tübingen, Tübingen, Germany
Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
J. Westhoff
Department of Geosciences, Eberhard Karls University Tübingen, Tübingen, Germany
F. Steinbach
Department of Geosciences, Eberhard Karls University Tübingen, Tübingen, Germany
Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
S. Kipfstuhl
Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
P. D. Bons
Department of Geosciences, Eberhard Karls University Tübingen, Tübingen, Germany
A. Griera
Departament de Geologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
I. Weikusat
Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Department of Geosciences, Eberhard Karls University Tübingen, Tübingen, Germany
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Cited
32 citations as recorded by crossref.
- Kinking facilitates grain nucleation and modifies crystallographic preferred orientations during high-stress ice deformation S. Fan et al. 10.1016/j.epsl.2021.117136
- Can changes in deformation regimes be inferred from crystallographic preferred orientations in polar ice? M. Llorens et al. 10.5194/tc-16-2009-2022
- A stratigraphy-based method for reconstructing ice core orientation J. Westhoff et al. 10.1017/aog.2020.76
- Crystallographic analysis of temperate ice on Rhonegletscher, Swiss Alps S. Hellmann et al. 10.5194/tc-15-677-2021
- Melt in the Greenland EastGRIP ice core reveals Holocene warm events J. Westhoff et al. 10.5194/cp-18-1011-2022
- Physical analysis of an Antarctic ice core—towards an integration of micro- and macrodynamics of polar ice I. Weikusat et al. 10.1098/rsta.2015.0347
- Shear localisation in anisotropic, non-linear viscous materials that develop a CPO: A numerical study T. de Riese et al. 10.1016/j.jsg.2019.03.006
- Folds inside pebbles: When do they form during conglomerate deformation? Numerical modelling and comparison with the Hutuo Group conglomerates, North China Craton H. Ran et al. 10.1016/j.jsg.2022.104620
- Stress and strain evolution during single-layer folding under pure and simple shear M. Llorens 10.1016/j.jsg.2019.06.009
- High-strain deformation of conglomerates: Numerical modelling, strain analysis, and an example from the Wutai Mountains, North China Craton H. Ran et al. 10.1016/j.jsg.2018.06.018
- EBSD analysis of subgrain boundaries and dislocation slip systems in Antarctic and Greenland ice I. Weikusat et al. 10.5194/se-8-883-2017
- The Relevance of Grain Dissection for Grain Size Reduction in Polar Ice: Insights from Numerical Models and Ice Core Microstructure Analysis F. Steinbach et al. 10.3389/feart.2017.00066
- Dynamic recrystallization during deformation of polycrystalline ice: insights from numerical simulations M. Llorens et al. 10.1098/rsta.2015.0346
- Impurity Analysis and Microstructure Along the Climatic Transition From MIS 6 Into 5e in the EDML Ice Core Using Cryo-Raman Microscopy J. Eichler et al. 10.3389/feart.2019.00020
- Development of crystal orientation fabric in the Dome Fuji ice core in East Antarctica: implications for the deformation regime in ice sheets T. Saruya et al. 10.5194/tc-16-2985-2022
- The IceCube Neutrino Observatory: instrumentation and online systems M. Aartsen et al. 10.1088/1748-0221/12/03/P03012
- Time for anisotropy: The significance of mechanical anisotropy for the development of deformation structures H. Ran et al. 10.1016/j.jsg.2018.04.019
- Two-dimensional impurity imaging in deep Antarctic ice cores: snapshots of three climatic periods and implications for high-resolution signal interpretation P. Bohleber et al. 10.5194/tc-15-3523-2021
- Using a composite flow law to model deformation in the NEEM deep ice core, Greenland – Part 1: The role of grain size and grain size distribution on deformation of the upper 2207 m E. Kuiper et al. 10.5194/tc-14-2429-2020
- Using a composite flow law to model deformation in the NEEM deep ice core, Greenland – Part 2: The role of grain size and premelting on ice deformation at high homologous temperature E. Kuiper et al. 10.5194/tc-14-2449-2020
- Predicting the steady-state isochronal stratigraphy of ice shelves using observations and modeling V. Višnjević et al. 10.5194/tc-16-4763-2022
- Strain localization and dynamic recrystallization in the ice–air aggregate: a numerical study F. Steinbach et al. 10.5194/tc-10-3071-2016
- Greenland Ice Sheet: Higher Nonlinearity of Ice Flow Significantly Reduces Estimated Basal Motion P. Bons et al. 10.1029/2018GL078356
- Electrical stratigraphy of the WAIS Divide ice core: Identification of centimeter‐scale irregular layering T. Fudge et al. 10.1002/2016JF003845
- A review of numerical modelling of the dynamics of microstructural development in rocks and ice: Past, present and future S. Piazolo et al. 10.1016/j.jsg.2018.05.025
- Holocene ice-stream shutdown and drainage basin reconfiguration in northeast Greenland S. Franke et al. 10.1038/s41561-022-01082-2
- Crystallographic Preferred Orientation (CPO) Development Governs Strain Weakening in Ice: Insights From High‐Temperature Deformation Experiments S. Fan et al. 10.1029/2021JB023173
- Converging flow and anisotropy cause large-scale folding in Greenland's ice sheet P. Bons et al. 10.1038/ncomms11427
- Strain field evolution at the ductile-to-brittle transition: a case study on ice T. Chauve et al. 10.5194/se-8-943-2017
- Full-field predictions of ice dynamic recrystallisation under simple shear conditions M. Llorens et al. 10.1016/j.epsl.2016.06.045
- Crystallographic preferred orientations of ice deformed in direct-shear experiments at low temperatures C. Qi et al. 10.5194/tc-13-351-2019
- Microstructural analysis of Greenland ice using a cryogenic scanning electron microscope equipped with an electron backscatter diffraction detector W. SHIGEYAMA et al. 10.5331/bgr.19R01
32 citations as recorded by crossref.
- Kinking facilitates grain nucleation and modifies crystallographic preferred orientations during high-stress ice deformation S. Fan et al. 10.1016/j.epsl.2021.117136
- Can changes in deformation regimes be inferred from crystallographic preferred orientations in polar ice? M. Llorens et al. 10.5194/tc-16-2009-2022
- A stratigraphy-based method for reconstructing ice core orientation J. Westhoff et al. 10.1017/aog.2020.76
- Crystallographic analysis of temperate ice on Rhonegletscher, Swiss Alps S. Hellmann et al. 10.5194/tc-15-677-2021
- Melt in the Greenland EastGRIP ice core reveals Holocene warm events J. Westhoff et al. 10.5194/cp-18-1011-2022
- Physical analysis of an Antarctic ice core—towards an integration of micro- and macrodynamics of polar ice I. Weikusat et al. 10.1098/rsta.2015.0347
- Shear localisation in anisotropic, non-linear viscous materials that develop a CPO: A numerical study T. de Riese et al. 10.1016/j.jsg.2019.03.006
- Folds inside pebbles: When do they form during conglomerate deformation? Numerical modelling and comparison with the Hutuo Group conglomerates, North China Craton H. Ran et al. 10.1016/j.jsg.2022.104620
- Stress and strain evolution during single-layer folding under pure and simple shear M. Llorens 10.1016/j.jsg.2019.06.009
- High-strain deformation of conglomerates: Numerical modelling, strain analysis, and an example from the Wutai Mountains, North China Craton H. Ran et al. 10.1016/j.jsg.2018.06.018
- EBSD analysis of subgrain boundaries and dislocation slip systems in Antarctic and Greenland ice I. Weikusat et al. 10.5194/se-8-883-2017
- The Relevance of Grain Dissection for Grain Size Reduction in Polar Ice: Insights from Numerical Models and Ice Core Microstructure Analysis F. Steinbach et al. 10.3389/feart.2017.00066
- Dynamic recrystallization during deformation of polycrystalline ice: insights from numerical simulations M. Llorens et al. 10.1098/rsta.2015.0346
- Impurity Analysis and Microstructure Along the Climatic Transition From MIS 6 Into 5e in the EDML Ice Core Using Cryo-Raman Microscopy J. Eichler et al. 10.3389/feart.2019.00020
- Development of crystal orientation fabric in the Dome Fuji ice core in East Antarctica: implications for the deformation regime in ice sheets T. Saruya et al. 10.5194/tc-16-2985-2022
- The IceCube Neutrino Observatory: instrumentation and online systems M. Aartsen et al. 10.1088/1748-0221/12/03/P03012
- Time for anisotropy: The significance of mechanical anisotropy for the development of deformation structures H. Ran et al. 10.1016/j.jsg.2018.04.019
- Two-dimensional impurity imaging in deep Antarctic ice cores: snapshots of three climatic periods and implications for high-resolution signal interpretation P. Bohleber et al. 10.5194/tc-15-3523-2021
- Using a composite flow law to model deformation in the NEEM deep ice core, Greenland – Part 1: The role of grain size and grain size distribution on deformation of the upper 2207 m E. Kuiper et al. 10.5194/tc-14-2429-2020
- Using a composite flow law to model deformation in the NEEM deep ice core, Greenland – Part 2: The role of grain size and premelting on ice deformation at high homologous temperature E. Kuiper et al. 10.5194/tc-14-2449-2020
- Predicting the steady-state isochronal stratigraphy of ice shelves using observations and modeling V. Višnjević et al. 10.5194/tc-16-4763-2022
- Strain localization and dynamic recrystallization in the ice–air aggregate: a numerical study F. Steinbach et al. 10.5194/tc-10-3071-2016
- Greenland Ice Sheet: Higher Nonlinearity of Ice Flow Significantly Reduces Estimated Basal Motion P. Bons et al. 10.1029/2018GL078356
- Electrical stratigraphy of the WAIS Divide ice core: Identification of centimeter‐scale irregular layering T. Fudge et al. 10.1002/2016JF003845
- A review of numerical modelling of the dynamics of microstructural development in rocks and ice: Past, present and future S. Piazolo et al. 10.1016/j.jsg.2018.05.025
- Holocene ice-stream shutdown and drainage basin reconfiguration in northeast Greenland S. Franke et al. 10.1038/s41561-022-01082-2
- Crystallographic Preferred Orientation (CPO) Development Governs Strain Weakening in Ice: Insights From High‐Temperature Deformation Experiments S. Fan et al. 10.1029/2021JB023173
- Converging flow and anisotropy cause large-scale folding in Greenland's ice sheet P. Bons et al. 10.1038/ncomms11427
- Strain field evolution at the ductile-to-brittle transition: a case study on ice T. Chauve et al. 10.5194/se-8-943-2017
- Full-field predictions of ice dynamic recrystallisation under simple shear conditions M. Llorens et al. 10.1016/j.epsl.2016.06.045
- Crystallographic preferred orientations of ice deformed in direct-shear experiments at low temperatures C. Qi et al. 10.5194/tc-13-351-2019
- Microstructural analysis of Greenland ice using a cryogenic scanning electron microscope equipped with an electron backscatter diffraction detector W. SHIGEYAMA et al. 10.5331/bgr.19R01
Saved (preprint)
Latest update: 17 Nov 2024
Short summary
In this study we present examples of typical small-scale folds observed in the NEEM ice core, North Greenland, and discuss their characteristics. Numerical modelling of viscoplastic deformation and dynamic recrystallisation was used to improve the understanding of the formation of the observed structures under simple shear boundary conditions. We conclude that the folds originate from bands of grains with a tilted lattice relative to the strong lattice preferred orientation below 1500 m depth.
In this study we present examples of typical small-scale folds observed in the NEEM ice core,...
