Publicación: MAP OF FAULTS FOR THE CHILES – CERRO NEGRO VOLCANOES REGION (NARIÑO) FROM DATA MINING AND FIELD CONFIRMATION
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Universidad Industrial de Santander
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Se realizó la compilación de un mapa de fallas y lineamientos en la región de interés del proyecto binacional geotérmico Tufiño-Chiles-Cerro Negro en la frontera colombo-ecuatoriana. El mapa se construyó mediante minería de datos consultando todas las fuentes de información publicadas y disponibles que incluyen trazos de fallas y lineamientos. Se descartaron las estructuras que presentaron repetición entre fuentes teniendo en cuenta la georreferenciación resultante de los diferentes mapas publicados. Adicionalmente se proponen nuevos lineamientos con base en la inspección visual de un modelo de elevación digital (DEM) con resolución de 30 m, e imágenes satelitales LANDSAT con resolución de 15 m. De la literatura se extrajeron un total de 30 lineamientos, mientras que la inspección visual del DEM reveló 50 potenciales lineamientos. En total 14 lineamientos cruzan el área de interés del proyecto binacional geotérmico, presentando dos tendencias en orientación: SE-NW (sistema transversal) y SW-NE (sistema longitudinal), con una clara predominancia del sistema transversal. El presente estudio reviste importancia en la localización de lineamientos controladores de la circulación de fluidos geotérmicos.
A compilation of faults and lineaments within the region of interest of the Binational Geothermal Project Tufiño- Chiles-Cerro Negro (Colombia-Ecuador border) was achieved by means of data mining among all available published sources of information, which included fault traces and lineaments. Examination and georeferencing of features included in the various sources of information allowed discarding repeated structures. A number of new potential lineaments are proposed based on visual inspection of a 30-m resolution DEM and a 15-m resolution LANDSAT image. A total of 30 potential lineaments were found in the literature, 50 additional lineaments were inferred from images analyses and 14 lineaments were found which include segments that cross the interest area of the geothermal project. The latter are oriented SE-NW (transversal system) and SW-NE (longitudinal system), with dominance of the transversal system. The present study highlights the importance of lineaments and faults on the controls on geothermal fluids circulation.
A compilation of faults and lineaments within the region of interest of the Binational Geothermal Project Tufiño- Chiles-Cerro Negro (Colombia-Ecuador border) was achieved by means of data mining among all available published sources of information, which included fault traces and lineaments. Examination and georeferencing of features included in the various sources of information allowed discarding repeated structures. A number of new potential lineaments are proposed based on visual inspection of a 30-m resolution DEM and a 15-m resolution LANDSAT image. A total of 30 potential lineaments were found in the literature, 50 additional lineaments were inferred from images analyses and 14 lineaments were found which include segments that cross the interest area of the geothermal project. The latter are oriented SE-NW (transversal system) and SW-NE (longitudinal system), with dominance of the transversal system. The present study highlights the importance of lineaments and faults on the controls on geothermal fluids circulation.