Pre-Mesozoic Geology in France and Related Areas PDF
Preview Pre-Mesozoic Geology in France and Related Areas
R. D. DALLMEYER, Athens, USA J. D. KEPPlE, Halifax, Canada Project 233 (Directors) Terranes In The Circum-Atlantic Paleozoic Orogens Volumes already published in the series: R. D. DALLMEYER and E. MARTINEZ GARCIA (Eds.): Pre-Mesozoic Geology of Iberia (1990) R. D. DALLMEYER and P. P. LECORCHE (Eds.): The West African Orogens and Circum-Atlantic Correlatives (1991) J.D. KEPPlE (Ed.): Pre-Mesozoic Geology in France and Related Areas (1994) J. D. Keppie (Ed.) Pre-Mesozoic Geology in France and Related Areas Associate Editors: J. Chantraine, J. Rolet, D. S. Santallier andA.Pique With 250 Figures Springer-Verlag Berlin Heidelberg New York London Paris Tokyo Hong Kong Barcelona Budapest J.D. KEPPlE Department of Mines and Energy p. O. Box 1087 Halifax, Nova Scotia B3J 2Xl Canada ISBN -13 :978-3-642-84917-6 e-ISBN-13:978-3-642-84915-2 DOl: 10.1007/978-3-642-84915-2 Library of Congress Cataloging-in-Publication Data. Pre-Mesozoic geology in France and related areas / J. D. Kep- pie (ed.). p.cm.Developed under IGCP Project 233-Terranes in the Circum-Atlantic Paleozoic Orogens. Includes bibliographical references and index. 1. Geology, Stratigraphic-Precambrian. 2. Geology, Stratigraphic-Paleozoic. 3. Geology-France.!. Keppie, J. Duncan. II. IGCP Project 233-Terranes in the Circum-Atlantic Paleozoic Orogens. QE653.P7437 1994 551.7'2'0944-dc20 93-44603 CIP This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprenting, reuse of illustrations, recitation, broadcasting, reproduction on mi- crofilms or in other ways, and storage in data banks. Duplication of this publication or parts thereof is only permitted under the provisions of the German Copyright Law of September 9, 1965, in its current version, and a copyright fee must always be paid. Violations fall under the prosecution act ofthe German Copyright Law. © Springer-Verlag Berlin Heidelberg 1994 Softcover reprint of the hardcover 1st edition 1994 The use of registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific state· ment, that such names are exempt from the rete vant protective laws and regulations and therefore free for general use. Production editor: Renate Miinzenmayer 32/3130-5 4 3 2 1 0 - Printed on acid-free paper Preface This book represents the third in the series on the Precambrian and Palaeozoic geolo- gy of Circum-Atlantic regions developed under the IGCP (International Geological Correlation Programme) Project # 233 on Terranes in the Circum-Atlantic Palaeo- zoic Orogens. The book is an up-to-date and comprehensive account of the Pre- Mesozoic Geology of France (Armorican and Central Massifs) and related areas (Aquitaine Basin, Vosges, Crystalline Provence, Pyrenees, western Alps, Corsica and Sardinia) that systematically reviews the geophysics, stratigraphy, palaeontology, structure, metamorphism, igneous activity and metallogeny. The need for such a book became apparent at the international copference held in Montpellier, France, in Au- gust, 1988, where a vast amount of new information was presented. The collection of papers presented at the conference and published in Tectonophysics, however, does not give the comprehensive treatment of the geology required for terrane analysis that is provided by this book. We sincerely appreciate the work ofthe reviewers whose comments have helped to ensure that this book has an international appeal. We also thank the authors whose diligent efforts have provided an excellent synthesis. Halifax, Nova Scotia, Canada 1993 J. DUNCAN KEPPlE Contents Part I Geophysics Seismic Reflection Images of the Pre-Mesozoic Crust in France and Adjacent Areas C. BOIS, M. CAZES, P. CHOUKROUNE, O. GARIEL, A. HIRN, B. LE GALL, J.P.LEFORT,P.MATTE,andB.PINET .••......•.•....... 33 Gravity and Magnetic Expression of Terranes and Their Correlation Beneath Overstep Sequences A. AUTRAN, J. P. LEFORT, N. DEBEGLIA, J. B. EDEL, and J. L. VIGNERESSE 49 Part II A The Cadomian Orogeny in the Armorican Massif Introduction J. CHANTR AINE ,B. AUVRAY, J. P. BRUN,J.J. CHAuvEL,andD.RABU 75 Lithostratigraphy J. CHANTRAINE, J. J. CHAUVEL, and D. RABU 81 Structure and Metamorphism D. RABU, J.P. BRUN, andJ. CHANTRAINE 96 Igneous Activity J.CHANTRAINE,B.AuVRAY,andD.RABU ......•.••......••.... 111 Conclusions J. CHANTRAINE, B. AUVRAY, J. P.BRUN, J.J. CHAUVEL, and D. RABU . . . . . • • . 126 Part II B The Variscan Orogeny in the Armorican Massif Stratigraphy and Paleontology The Variscan F.PARIsandM.RoBARDET ••......•..•...•.••..•••..•... 131 Introduction F. PARIS and M. ROBARDET • • • . • • . . . • . • . . • • . . . • • . • . . 133 Cambrian of the Armorican Massif F.DORE ......•........•••..••..•••...••..•••.•• 136 Contents VII Ordovician, Silurian, and Devonian of the Medio-North-Armorican Domain M. ROBARDET, J. L. BONJOUR, E PARIS, P. MORZADEC, and P. R. RACHEBOEUF . 142 Paleozoic of the Ligerian Domain H. LARDEUX and P. CAVET • . . • . . . . . . . . • . . . . . . . • . • • . 152 Paleozoic of the Vendean Domain M. COLCHEN and D. PONCET .•.• . ..................... 157 Carboniferous of the Armorican Massif A. PELHATE .••.••..•... • . . • . . . . . . . . • . . • . . • . . • 162 Permian of the Armorican Massif EDoRE ........... . ......................... 169 Paleogeographic Synthesis E PARIS and M. ROBARDET ..•..••.•.•..•..•......•..•.•• 172 Structure and Metamorphism Introduction J.ROLET •.. . ....................... 177 Early Tectonic Events (Ordovician) C.LECORRE ............. . . ................. 179 Eo-Hercynian Events in the Armorican Massif M. BALLEVRE, J. MARCHAND, E GODARD, J.-c. GoUJOU, I.-CH. and R. WYNS ... 183 Intracontinental Hercynian Events in the Armorican Massif J. ROLET, E GRESSELIN, P. JEGOUZO, P. LEDRU, and R. WYNS .•..•....... 195 Igneous Activity Magmatic Record of the Geodynamic Evolution of Brittany and Vendee During Paleozoic Times: Trace Element Constraints D. THI:EBLEMONT and B. CABANIS .........••..•...•.......• 220 Variscan Granites from Brittany J. P. CARRON, M. LE GUEN DE KERNEIZON, and H. NACHIT .••.••..•..•. 231 Part II C Metallogeny Metallogeny of the Armorican Massif L. CHAURIS and E. MARCOUX . • • . • • • . • • . . • . . . . . . . . . • . . • . • . 243 VIII Contents Part III The Massif Central Introdnction D. S. SANTALLIER ...... 267 Lithostratigraphy of Variscan Terranes in the French Massif Central: A Basis for Paleogeographical Reconstruction P.LEDRU,A.AuTRAN,D.SANTALLIER . . . • . . . • . . . • . . . . • . . 276 Biostratigraphy and Dynamics of the Nonmetamorphic Sedimentary Record R FEIST, H. ECHTLER, J. GALTIER, and B. MOUTHIER . . . . • . . . • • . . • . . . 289 Structnre P. LEDRU, S. COSTA, and H. ECHTLER . . . . • • . . • • . . • . . . . • . . . • . . . 305 Metamorphism D. S. SANTALLIER, J. M. LARDEAUX, J. MARCHAND, and CH. MARIGNAC . 324 Igneons Activity. Caledo-Hercynian Magmatism in the French Massif Central A. PLOQUIN, B. BRIAND, G. DUBUISSON, J. GIRARDEAU, J. C. MERCIER, M. OHNENSTETTER, A. PLOQUIN, D. SANTALLIER and J. M. STUSSI ..... . 341 Metallogenesis of the French Massif Central: Time-Space Relationships Between Ore Deposition and Tectono-Magmatic Events H. BRIL, CH. MARIGNAC, F. TOLLON, M. CUNEY, and M. C. BOIRON • . . . . . • . . 379 Part IV Correlative Areas The Aqnitaine Basin F. PARIS and G. LE POCHAT ••..•...••..••..•...••..•••.•• 405 The Vosges Massif A.PIQUE,P.FLUcK,J.-L.ScHNEIDER,andH.WHITECHURCH ...••....... 416 Crystalline Provence: Structnre and Variscan Evolntion G.CREvoLAandJ.-P.PUPIN •...•....•..••.•....•.......•. 426 Pyrenees C. MAJESTE-MENJOULAS and P. DEBAT .... 442 Variscan Basement of the Western Alps: the External Crystalline Massifs RP.MENOT,J.F. VON RAUMER, S.BOGDANOFF, and G. VIVIER ...•...•... 458 Corsica and Sardinia in the Variscan Chain J. M. LARDEAUX, R P. MENOT, J. B. ORSINI, PH. ROSSI, G. NAUD and G. LIBOUREL . 467 Contents IX Part V The French Paleozoic Terranes A. PIQUE, S. BOGDANOFF, J.-M. QUENARDEL, J. ROLET, and D. SANTALLIER ...• 483 Subject Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 501 List of Contributors A. AUTRAN C.BOIS Bureau de Recherches Institut Franc;ais du Petrole Geologiques 1-4, Avenue de Bois-Preau et Minieres (BRGM) 92506 Rueil-Malmaison Cedex BP6009 France Service Geologique National 45060 Orleans Cedex JEAN-JACQUES BONJOUR France Laboratoire de Petrologie Sedimentaire Institut de Geologie BERNARD AUVRAY Universite de Rennes I Centre Armoricain d'Etude Structurale UPR 4661 du CNRS desSocles 35042 Rennes Cedex Universite de Rennes France Campus Beaulieu 35042 Rennes Cedex B.BRIAND France Centre des Sciences de la Terre Laboratoire de Petrographie MICHEL BALLEVRE Universite Claude Bernard Lyon I Universite de Rennes I 27-43 Bd du 11 novembre Geosciences Rennes 69622 Villeurbanne Cedex Laboratoire de Tectonique France Avenue du General Leclerc 35042 Rennes Cedex H.BRIL France Laboratoire de Geologie 123 avenue A. Thomas SERGE BOGDANOFF 87060 Limoges Cedex Laboratoire de Geologie France Structurale & Appliquee Universite de Paris-Sud JEAN-PIERRE BRUN Batiment 504 Centre Armoricain d'Etude Structurale 91405 Orsay Cedex desSocles France Universite de Rennes Campus Beaulieu M.C.BOIRON 35042 Rennes Cedex Laboratoire de Mineralogie France Universite de Toulouse 39 allee J. Guesde BRUNO CABANIS 31400 Toulouse Laboratoire de Geochimie comparee France et systematique T.16-26, 3° etage Universite P. et M. Curie 75252 Paris Cedex 05 France
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