Caracterización de subunidades geomorfológicas a escala 1:25000 en el municipio de Durania (Norte de Santander, Colombia).

Abstract

The planet earth, due to its external and internal dynamics, ismade up of a large number of different geoforms, which, properly interpreted, can be classified in a coherent way. This research consists of an analysis of morphological and morphometric parameters applied to the geomorphological study of a given area.The study area is located in the northeast of the Colombian territory and includes the total area of the municipality of Durania (Norte de Santander), the following The research was carried out by applying the standardization base of geomorphological cartography proposed by (1). The geomorphological cartography scale 1: 25,000 of the municipality of Durania, was achieved through the review of existing bibliographic and cartographic information, the adjustment of the existing geological information to scale 1: 25,000 provided by the Mayor's Office of Durania [4], the processing of the satellite images obtained and the 12.5m resolution (DEM) of the ALOS satellite system PALSAR of the Japan Aerospace Exploration Agency, JAXA. and then analyze using ArcGIS 10.6 software. the expression of the relief generated by the shadow maps (Hillshade), slope model (Slope) and Google Earth, managing to extract morphometric, morphological and morphogenetic attributes of the relief present in the study area, with which the Geomorphological subunits of the area according to the standardization criteria of [1]. The units defined correspond to morphogenetic environments of a structural type (96.6%) primarily, due to the strong structural control that runs through the entire study area, where it is originated by the area of influence of the Pamplona - Chitagá fault system (SFPC) ; Denudational type to a much lesser extent (2.63%) in the northeast of the area, due to the presence of strong erosion processes associated with surface runoff; of fluvial type (0.76%) towards the western part of the area in which the Zulia river is its percussion.