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  • This paper intends to present observations of geomorphic and geologic evidence in the Eastern Andan foothills of Colombia and Venezuela, where a well-developed-fold-and-thrust belt is currently growing. In this type of tectonic setting, the analysis
  • . The main assumption made throughout the paper is that large-scale tectonic stresses cause geological blocks to tilt and this has a profound influence on the drainage systems.
  • Field observation combined with remote sensing, employing both Landsat images and aerial photographs, and the analysis of topographic, geomorphological and geological maps show that the regional contrasts in seismicity and associated tectonic
  • was carried out by the integration of chronological and kinematic constraints deriving from a vast geological literature with those obtained by a geomorphological analysis. The latter was addressed to recognition and distinction of the main stages
  • been formed during Middle-Upper Pliocene, after the end of the main tectogenetic phases of the Apennine chain. In order to outline the geomorphologic evolution of the area, detailed geological and geomorphologic investigations have been carried out