Ouverture et evolution tectono-sedimentaire du golfe de Guayaquil: Bassin d'avant-arc neogene et quaternaire du Sud des Andes equatoriennes

Yann Deniaud, Patrice Baby, Christophe Basile, Martha Ordoñez, Galo Montenegro, Georges Mascle

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

43 Citas (Scopus)

Resumen

The analysis of industrial seismic and well data of the Gulf of Guayaquil allows us to constrain the structure of the Gulf of Guayaquil. The main opening phase of the deepest South Ecuadorian Neogene and Quaternary fore-arc basin occurred during the Lower Pleistocene. It is located at the southern tip of the Dolores-Guayaquil megashear zone, between WNW-ESE normal faults and north-south transpressional structures. The processes from which it originated are similar to those of a pull-apart basin. It developed between the Dolores-Guayaquil megashear to the east, and the oblique convergent Nazca-South America plate boundary to the west. During the Upper Pleistocene, the sedimentation rate decreases drastically in relation to both the glaciation-related sea level falls and a transpressional event.

Título traducido de la contribuciónOpening and tectonic and sedimentary evolution of the Gulf of Guayaquil: Neogene and Quaternary fore-arc basin of the south Ecuadorian Andes
Idioma originalFrancés
Páginas (desde-hasta)181-187
Número de páginas7
PublicaciónComptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes
Volumen328
N.º3
DOI
EstadoPublicada - feb. 1999
Publicado de forma externa

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