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Modelo integrado de información gravimétrica, geológica y de terrenos para los perfiles: Turbo - San Jose del Guaviare y Quibdó - Puerto Berrio

2003; National University of Colombia; Issue: 7 Linguagem: Inglês

2339-3459

Ramiro León Díaz Campos, Leonardo Martínez Díaz, Yaqueline Figueredo Báez,

Geological and Tectonic Studies in Latin America

The structural model of the studied zone, was generated from the integration of the gravimetric, regional geology and area teetono-stratigraphics. Two profiles AA' (Turbo - San Jose del Guaviare) and BB' (Quibdo - Puerto Berrio), analyzed corroborate the existence of two zones, one with oceanic crustal (West of Romeral) and other with continental crustal (to the East); among both profiles there is a point of inflexion in the direction of the attitude of Romeral fault, from which they present important changes in the accretion components and efforts, giving origin to important variations in the model of subduction. To the North of the point of inflexion two zones of subduction appear, the current one associated with the Sinu fault and a fossil were area associated to the with Romeral's fault. Besides, locally they find evidences so much in surface geology as gravimetry of a obduction zone. To the south of this point theree subduction zones were determined, the current one associated to the Pacific grave and two fossilized associated to the sutures or Romeral's faults and of the Atrato river fault's. In the profile AA', in the zone of continental crust are observed the sectors of Cordillera Central, Cordillera Oriental and Llanos Orientales. In the profile BB ' is appreciated until the Valle Medio del Magdalena. The differences among these areas they reside in the type of rock of the basement and the deformation style.