Pre-Mesozoic Geology in France and Related Areas

522 Pages·1994·20.2 MB·English

by  C. Bois

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