Seismological evidence on the geometry of the Orogenic System in central-northern Ecuador (South America)
| Autor: | G. Poupinet, J. F. Fels, Bertrand Guillier, Etienne Jaillard, Jean-Luc Chatelain, Hugo Yepes |
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| Přispěvatelé: | Institut de Recherche pour le Développement (IRD), Université Grenoble Alpes (UGA), Services communs OMP (UMS 831), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2001 |
| Předmět: |
Buttress
Coastal plain COMPRESSION TECTONIQUE SUBDUCTION Oceanic crust Information Related to Geographic Region: South America Tectonophysics: Dynamics seismotectonics DISTRIBUTION SPATIALE OROGENESE Focal mechanism geography geography.geographical_feature_category Subduction Structural Geology: Local crustal structure Seismotectonics Tectonics Geophysics [SDU]Sciences of the Universe [physics] SEISME General Earth and Planetary Sciences SISMOLOGIE Paleogene Seismology Geology SISMOTECTONIQUE |
| Zdroj: | Geophysical Research Letters Geophysical Research Letters, 2001, 28, pp.3749-3752. ⟨10.1029/2001GL013257⟩ |
| ISSN: | 0094-8276 1944-8007 |
| DOI: | 10.1029/2001gl013257 |
| Popis: | International audience; Analysis of the spatial distribution of seismicity beneath central Ecuador from a temporary network gives new insights on two main points of the Ecuadorian tectonics. Major structures in the Ecuadorian Andes are East-dipping Late Jurassic to Paleogene sutures reactivated by present-day compression. The oceanic plate is plunging continuously down to a depth of about 200 km with a dip of 25°-35°. We also show that the coastal plain acts as a buttress transmitting stresses to the Andes, beneath which deformation is concentrated. |
| Databáze: | OpenAIRE |
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