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Quantitative structural analyses and numerical modelling of ...

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94 O. LEXA ET AL.(a)(b)(c)(d)Fig. 11. Model proposed for the tectonic evolution <strong>of</strong> the orogenic root domain in the Bohemian Massif. (a) Model <strong>of</strong> continentalunderthrusting with development <strong>of</strong> the Barr<strong>and</strong>ian forearc region, CBPC magmatic arc <strong>and</strong> backarc region represents the futureMoldanubian domain. The position <strong>of</strong> the Palaeotethys suture is indicated as the future Maria´nské La´zneˇ Complex. (b) Relaminationmodel with part <strong>of</strong> the allochthonous Saxothuringian crust injected between the Moho <strong>and</strong> the continental lithosphere. The other partis subducted thereby producing metasomatism <strong>of</strong> the overlying mantle. (c) Crustal thickening <strong>of</strong> the former backarc domain(Schulmann et al., 2005, 2009). (d) Vertical extrusion <strong>and</strong> gravity redistribution <strong>of</strong> relaminated Saxothuringian crust at the end <strong>of</strong>Variscan orogeny.Ó 2010 Blackwell Publishing Ltd196

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