%0 Journal Article %T Mise en évidence d'une tectonique compressive Éocène-Oligocène dans l'Ouest de la Cordillère orientale de Colombie, d'après la structure en duplex des gisements d'émeraude de Muzo et de Coscuez (Evidence for an Eocene-Oligocene compressive tectonics in the western part of Eastern Cordillera of Colombia, from the duplex structure of the Muzo and Coscuez emerald deposits) %+ Ecole Nationale Supérieure des Mines de Nancy (ENSMN) %+ Institut des Sciences de la Terre d'Orléans (ISTO) %+ Centre de Recherches Pétrographiques et Géochimiques (CRPG) %+ Mineralco SA %A Laumonier, Bernard %A Branquet, Yannick %A Lopès, Benoit %A Cheilletz, Alain %A Giuliani, Gaston %A Rueda, Félix %< avec comité de lecture %J Comptes rendus de l’Académie des sciences. Série IIa, Sciences de la terre et des planètes %I Elsevier %V 323 %P 705-712 %8 1996 %D 1996 %K mineralization %K emerald %K beryl %K Colombia %K compression tectonics %K Eocene %K Oligocene %K Eastern Cordillera %K Andes %K duplex structure %K Andean Orogeny %K thrust fault %K folds %K tectonic ramps %K hydrothermal circulation %K syntectonic processes %K mineral deposits %K genesis %K deformation %K structural analysis %K South America %K Paleogene %K Tertiary %Z Sciences of the Universe [physics]/Earth Sciences/TectonicsJournal articles %X The structures of the emerald deposits of the western part of Eastern Cordillera of Colombia (thrusts, ramps, duplexes, tear faults) have been formed by three deformational events forming a single thrust-tectonics phase, synchronous with the emerald-forming hydrothermalism. As this hydrothermalism is Late Eocene-Early Oligocene in age, it is also the age of the thrust tectonics. %G English %2 https://insu.hal.science/hal-00122519/document %2 https://insu.hal.science/hal-00122519/file/010007514.pdf %L hal-00122519 %U https://insu.hal.science/hal-00122519 %~ INSU %~ INSTITUT-TELECOM %~ CNRS %~ UNIV-ORLEANS %~ EM-NANCY %~ ISTO %~ OSUC %~ UNIV-LORRAINE %~ OTELO-UL %~ CRPG-UL %~ INSTITUTS-TELECOM %~ TEST3-HALCNRS