La estructura de la Península de Bahoruco (SO de República Dominicana) en el contexto de la convergencia oblicua entre las placas caribeña y norteamericana
- F. Pérez-Valera 1
- M. Abad 2
- M. Joubert 3
- A. Pérez-Estaún 4
- P.P. Hernáiz-Huerta 5
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1
Universidad de Jaén
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2
Universidad de Huelva
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- 3 BRGM
- 4 Instituto de Ciencias de la Tierra Jaume Almera-CSIC
- 5 INYPSA
ISSN: 1576-5172
Año de publicación: 2012
Título del ejemplar: VIII Congreso Geológico de España, Oviedo, 17-19 de julio, 2012.
Número: 13
Páginas: 425-428
Tipo: Artículo
Otras publicaciones en: Geotemas (Madrid)
Resumen
The geological mapping carried out in the Bahoruco Peninsula (Dominican Republic) revealed the existence of large-scale structures (folds and fault zones) that determine the topography of the region. These structures have been formed since the Pliocene. Additionally the characterization of large folds and fault zones, we described shear zones. These last were probably developed in the Upper Cretaceous volcanic basement although they are reflected in the sedimentary cover deformation, which is formed by a significantly thick Eocene to Pleistocene carbonate succession. These shear zones are the most conspicuous structures in the region and are mainly characterized by the occurrence of a concentration of faults with little continuity and small displacement. Furthermore, in the most important shear zone, the Zona de Cizalla de Arroyo Dulce, conical folds, with double immersion, in echelon morphologies and drag axes were generated. All the structural data obtained agree with the sinistral, transpressive regime that currently exists in the Caribbean region due to the NE-SW oblique convergence between the Caribbean plate and the North-American plate.