Cover image for The Variscan Belt of Western Europe. 2, Late magmatic, metamorphic and tectonic events and the sedimentary record
Title:
The Variscan Belt of Western Europe. 2, Late magmatic, metamorphic and tectonic events and the sedimentary record
Author:
Denele, Yoann, editor.
ISBN:
9781394264995
Physical Description:
1 online resource (256 pages)
Series:
Geoscience. Dynamics of the continental lithosphere
Contents:
Preface ix Yoann DENÈLE and Julien BERGER -- Introduction xi Yoann DENÈLE and Julien BERGER -- List of Figures -- Chapter 1 High-Temperature Metamorphism and Syn- to Late-Orogenic Magmatism 1 Arnaud VILLAROS, Oscar LAURENT, Simon COUZINIE and Jean-François MOYEN -- 1.1 Introduction -- 1.2 High-temperature/low- to medium-pressure metamorphism and partial melting of the Variscan crust -- 1.2.1 Evolution of high-temperature metamorphism -- 1.2.2 Petrology of high-temperature metamorphism -- 1.3 Late-orogenic magmatism -- 1.3.1 Two mica peraluminous leucogranites (MPG) -- 1.3.2 Biotite and cordierite peraluminous granites (CPG) -- 1.3.3 K-rich calc-alkaline granitoids (KCG) - durbachites, vaugnerites -- 1.3.4 Synchronous orogenic volcanism of HT metamorphism -- 1.3.5 Overview -- 1.4 Causes and geodynamic implications of crustal melting -- 1.4.1 Synchronous crustal melting episode of the Variscan collision -- 1.4.2 Melting associated with orogenic extension -- 1.4.3 High-temperature melting and the formation of domes -- 1.4.4 Synthesis of HT metamorphic evolution -- 1.4.5 Outlook -- 1.5 References -- Chapter 2 Late-Orogenic Structural Reorganization of the Variscan Belt during the Upper Carboniferous 35 Yoann DENÈLE and Bryan COCHELIN -- 2.1 Introduction -- 2.2 Major structures of the Variscan belt of Western Europe -- 2.3 Ibero-Armorican Arc -- 2.3.1 Formation of a major orocline in the upper Carboniferous -- 2.3.2 Structure and evolution of the Armorican domain -- 2.3.3 The Armorican shear zones -- 2.3.4 A simple shear model in a horizontal plane at the scale of the Central Armorican domain -- 2.4 Late orogenic deformation in the internal domain -- 2.4.1 South Armorican domain: thinning and longitudinal stretching of a previously thickened domain -- 2.4.2 The Carboniferous syn-tectonic plutons of the French Massif Central: interaction between strike-slip shear zone and longitudinal extension -- 2.4.3 The Velay dome and the Pilat detachment: transverse extension in the hinterland -- 2.5 Late-orogenic deformation in the southern foreland domain -- 2.5.1 The Montagne Noire migmatite-cored gneiss dome -- 2.5.2 The Variscan segment of the Pyrenees -- 2.6 Summary and discussion on the restructuring of the Variscan belt in the Carboniferous -- 2.7 Conclusion -- 2.8 References -- Chapter 3 Sedimentary Basins and Evolution of Reliefs Associated with the Variscan Cycle in France and Adjacent Countries 121 Markus ARETZ, Élise NARDIN, Frédéric CHRISTOPHOUL, Julien DENAYER -- 3.1 Introduction -- 3.2 Foreland basins along the Southern Laurussian Margin -- 3.2.1 The Ardenne and the Boulonnais -- 3.2.2 Rhenish Massif -- 3.3 Basins in the Inner Variscan zone -- 3.3.1 Armorican Massif Basins -- 3.3.2 Northern Vosges -- 3.4 Regions of the Gondwanan Margin and Foreland Basin -- 3.4.1 Middle Vosges and Southern Vosges -- 3.4.2 Morvan -- 3.4.3 Montagne Noire: reference for the Peri-Gondwanan Foreland Basin -- 3.4.4 The Pyrenees -- 3.5 Post-orogenic stage: Stephanian-Permian basins -- 3.5.1 Stratigraphy -- 3.5.2 Geodynamic and structural context -- 3.5.3 General sedimentological trends in Stephanian-Permian basins -- 3.6 Conclusion -- 3.7 References -- Conclusion 203 Yoann DENÈLE and Julien BERGER -- List of Authors -- Index -- Summary of Volume 1.
Abstract:
This book deals with the geological record and the evolution of ideas concerning the Variscan orogenic belt in France and neighboring regions. Volume 1 is based on a general introduction concerning the imprint of the Variscan period on the geology of France, as well as on the particularities of the study of this ancient orogen. A history of the concepts applied to the Variscan belt is proposed in order to consider this orogen in the history of Earth Sciences. A paleogeodynamic analysis of the Variscan cycle sets the general framework for the evolution of the orogen, which is then tackled through the prism of the magmatic, metamorphic and tectonic record of the early phases (from Cambrian to Lower Carboniferous). Volume 2 proposes an analysis of the late evolution of the Variscan orogenic belt, reflecting its dismantling in a high-temperature context during the Upper Carboniferous and Permian. The sedimentary archives are described, as well as the questions raised by the specificities of this ancient orogen.
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John Wiley and Sons
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