Patrick Ledru

Dr. Patrick Ledru


Research Focus & Metrics

Academic Career Length

40Years (1987-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 February 2009 in Comptes Rendus. Géoscience
Verified
Journal Article
Open access
Michel FaureMichel Faure
Michel Faure
JLJean-Marc Lardeaux
Jean-Marc Lardeaux
PLPatrick Ledru
Patrick Ledru
The Massif Central, like the southern part of the Massif Armoricain, belongs to the north Gondwana margin. The Massif Central consists of a stack of nappes resulting from six main tectonic-metamorphic events. The first, D 0 , is coeval with a Late Silurian (ca 415 Ma) high-pressure (HP) (or ultra high-pressure) metamorphism for which the associated structures are poorly documented. The Early Devonian D 1 event, responsible for top-to-the-southwest nappe displacement, is coeval with migmatization and the exhumation of HP rocks around 385–380 Ma. In the northern part of the Massif Central, metamorphic rocks with retrogressed eclogites are covered by Late Devonian undeformed sedimentary rocks. The Late Devonian-Early Carboniferous D 2 event involves top-to-the-northwest shearing, coeval with an intermediate pressure-temperature metamorphism dated around 360–350 Ma. The Visean D 3 event is a top-to-the-south ductile shearing, which is widespread in the southern Massif Central. Coevally, in the northern Massif Central, the D 3 event corresponds to the onset of synorogenic extension. The next two events, D 4 and D 5 , of Early and Late Carboniferous age, correspond to the syn- and late orogenic extensional tectonic regimes, respectively. The former is controlled by NW–SE stretching whereas the latter is accommodated by NNE–SSW stretching. These structural and metamorphic events are reconsidered in a geodynamic evolution model. The possibilities of one or two cycles involving microcontinent drifting, rewelding and collision are discussed.

1 October 1992 in Precambrian Research
Verified
Journal Article
Closed access
JMJean-Pierre Milési
Jean-Pierre Milési
PLPatrick Ledru
Patrick Ledru
JFJean-Louis Feybesse
Jean-Louis Feybesse
ADAlain Dommanget
Alain Dommanget
EMEric Marcoux
Eric Marcoux

1 October 1994 in Precambrian Research
Verified
Journal Article
Closed access
PLPatrick Ledru
Patrick Ledru
VJVéra Johan
Véra Johan
JMJean Pierre Milési
Jean Pierre Milési
MTMonique Tegyey
Monique Tegyey

1 December 2001 in Tectonophysics
Verified
Journal Article
Closed access
PLPatrick Ledru
Patrick Ledru
GCG. Courrioux
G. Courrioux
CDC. Dallain
C. Dallain
JLJ.M. Lardeaux
J.M. Lardeaux
JMJ.M. Montel
J.M. Montel
GVG. Vitel
G. Vitel

1 December 2008 in Physics of the Earth and Planetary Interiors
Verified
Journal Article
Closed access
AGA. Guillen
A. Guillen
PCPh. Calcagno
Ph. Calcagno
GCG. Courrioux
G. Courrioux
AJA. Joly
A. Joly
PLPatrick Ledru
Patrick Ledru