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In this experiment (from Ph. Davy), a 4 layers model is used to investigate the Euroasiatic lithosphere deformation: a brittle layer (sand for the upper crust) overlying two ductile layers (low viscosity silicone for the lower crust, a more viscous silicone for the upper mantle). Honey is the analogue for the asthenosphere. This model shows the development of lithospheric scale folding as well as the development of large-scale strike slip faults. Both structures are observed... In recent years a number of scientific studies have investigated the possibility of lithospheric scale folding. Field observations and numerical tests seem to give strong support to this hypothesis. These folds correspond to large scale undulations that tend to localize the initiation of thrusts. |
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Burg et al., 2000. |
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