| Titre : |
Length scales,times scales and relative contribution of Variscan orogenic events to formation of European crust : Special meeting of French and Italian Geological Societies, May 22-23,2012, Sassari,Italy |
| Type de document : |
texte imprimé |
| Auteurs : |
Giacomo Oggiano, Organisateur de réunion, de conférence ; Leonardo Casini, Organisateur de réunion, de conférence ; Karel Schulmann, Organisateur de réunion, de conférence |
| Editeur : |
Orléans : BRGM éditions |
| Année de publication : |
2012 |
| Autre Editeur : |
Paris : Société géologique de France |
| Collection : |
Géologie de la France, ISSN 0246-0874 num. 1 |
| Importance : |
1 vol. (229 p.) |
| Présentation : |
ill. |
| Format : |
30 cm |
| ISBN/ISSN/EAN : |
978-2-7159-2535-9 |
| Note générale : |
PPN 276269675 |
| Langues : |
Anglais (eng) |
| Tags : |
Cycle hercynien -- Europe -- Congrès Orogeny -- Europe -- Congresses |
| Index. décimale : |
551.136 Tectonique des plaques, dérive des continents |
| Résumé : |
The Variscan orogeny in Europe resulted from amalgamation of Gondwana- derived continental blocks derived by Ordovician fragmentation of this supercontinent. The Early-Palaeozoic fragmentation process was associated with major magmatic reworking of Proterozoic crust, development of intercontinental rifts, passive margins and oceanic domains. This event influenced irregularly structure and composition of the future Variscan crust. Subsequent drift of continental blocks terminated by amalgamation of microblocks during Devonian and Carboniferous followed by final accretion to Laurussia. This process was governed by closure of intervening oceanic basins between different sized microblocks, which led to further heterogeneous thermal and magmatic reworking of the continental crust. Towards the end of Carboniferous, the plate configuration changed leading to major shortening along the orogen's axis, which was associated with activity of lithosphere-scale strike-slip faults accompanied with magmatic activity. Several modern studies have shown that above-mentioned processes affected the Variscan system with different intensity; thus in Central Western Europe the Late Carboniferous event was subordinate, whereas the southern European realm shows complete magmatic reworking leading to a formation of continental crust quite different from that formed in the north. |
Length scales,times scales and relative contribution of Variscan orogenic events to formation of European crust : Special meeting of French and Italian Geological Societies, May 22-23,2012, Sassari,Italy [texte imprimé] / Giacomo Oggiano, Organisateur de réunion, de conférence ; Leonardo Casini, Organisateur de réunion, de conférence ; Karel Schulmann, Organisateur de réunion, de conférence . - Orléans : BRGM éditions : Paris : Société géologique de France, 2012 . - 1 vol. (229 p.) : ill. ; 30 cm. - ( Géologie de la France, ISSN 0246-0874; 1) . ISBN : 978-2-7159-2535-9 PPN 276269675 Langues : Anglais ( eng)
| Tags : |
Cycle hercynien -- Europe -- Congrès Orogeny -- Europe -- Congresses |
| Index. décimale : |
551.136 Tectonique des plaques, dérive des continents |
| Résumé : |
The Variscan orogeny in Europe resulted from amalgamation of Gondwana- derived continental blocks derived by Ordovician fragmentation of this supercontinent. The Early-Palaeozoic fragmentation process was associated with major magmatic reworking of Proterozoic crust, development of intercontinental rifts, passive margins and oceanic domains. This event influenced irregularly structure and composition of the future Variscan crust. Subsequent drift of continental blocks terminated by amalgamation of microblocks during Devonian and Carboniferous followed by final accretion to Laurussia. This process was governed by closure of intervening oceanic basins between different sized microblocks, which led to further heterogeneous thermal and magmatic reworking of the continental crust. Towards the end of Carboniferous, the plate configuration changed leading to major shortening along the orogen's axis, which was associated with activity of lithosphere-scale strike-slip faults accompanied with magmatic activity. Several modern studies have shown that above-mentioned processes affected the Variscan system with different intensity; thus in Central Western Europe the Late Carboniferous event was subordinate, whereas the southern European realm shows complete magmatic reworking leading to a formation of continental crust quite different from that formed in the north. |
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Length scales,times scales and relative contribution of Variscan orogenic events to formation of European crust (2012)