P
Patrick Ledru
Researcher at Areva Resources Canada
Publications - 16
Citations - 1050
Patrick Ledru is an academic researcher from Areva Resources Canada. The author has contributed to research in topics: Metamorphism & Shear zone. The author has an hindex of 13, co-authored 16 publications receiving 946 citations. Previous affiliations of Patrick Ledru include Areva.
Papers
More filters
Journal ArticleDOI
Markers of the last stages of the Palaeoproterozoic collision: evidence for a 2 Ga continent involving circum-South Atlantic provinces
TL;DR: In this article, the authors investigated the tectonic evolution of the Palaeoproterozoic fluvio-deltaic deposits in the West African, Guiana, Congo and Sao Francisco provinces.
Journal ArticleDOI
Early proterozoic ore deposits and tectonics of the Birimian orogenic belt, West Africa
TL;DR: In this paper, the authors proposed a model of polycyclic evolution of the Birimian orogenic belt, with a major collision event (D 1 ; 2.1 Ga) thrusting part of the Proterozoic terrane over the Archean before individualization of numerous volcanic troughs and clastic-infill basins.
Journal ArticleDOI
Contrasting mechanism of crustal growth
Olivier Vanderhaeghe,Patrick Ledru,Denis Thiéblemont,Emmanuel Egal,Alain Cocherie,M. Tegyey,Jean-Pierre Milesi +6 more
TL;DR: In this article, two contrasting mechanisms of crustal growth have been identified by recent structural, metamorphic, geochronological and geochemical investigations in the Cayenne-Regina region, which is part of the northern granite greenstone belt of French Guiana.
Journal ArticleDOI
Transcurrent tectonics and polycyclic evolution in the lower proterozoic of Senegal-Mali
TL;DR: In this article, a complete revision of the local stratigraphy of the Kedougou inlier has been presented, based on the discovery that the sedimentary Dialle-Dalema series lie in the core of a major anticlinorium and the rocks show overprinting of an earlier by a later tectonic phase.
Journal ArticleDOI
5: Late Variscan mineralizing systems related to orogenic processes: The French Massif Central
TL;DR: In this article, two types of gold deposit can be distinguished on the basis of their depth of emplacement: deep-seated gold deposits developed under lithostatic to hydrostatic pressure during rapid exhumation, and shallow gold deposits emplaced under hydrostatic pressures with no significant uplift.