Figure 1 tectonic map of the caribbean and part of

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Unformatted text preview: Figure 1: Tectonic map of the Caribbean and part of the northern Andes modified after Schamel, (1991). CC: Cordillera Central; CO: Cordillera Oriental; BF: Bituima fault; CF: Cambao fault; GS: Guaduas syncline; HF: Honda fault; IF: Ibagué fault. Figure 2: Reconstruction of the ENE translation (~30km) of the rigid indenter of the Cordillera Central along the Ibagué fault (IF). Outline of the study area kept fixed as reference. a) Initial deformation. CaF: Camaito fault, CoF: Cotomal fault; GA: Guaco anticline. b) Continued deformation c) Present configuration. Syntectonic sedimentation, Paleogene The Paleocene Guaduas Formation exhibits remarkable thickness changes within the Gualanday syncline that define a fold axial trace morphology that splits in two, with the axial trace delineating a roughly triangular zone that widens downward. The apex of this triangular zone is at the base of the Gualanday Group, marking the end of growth strata. This reveals a time of syntectonic sedimentation, fold growth and propagation (Paleocene Guaduas Formation), 426 followed by a time of conglomerate accumulation and folding (Gualanday Group). T...
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This document was uploaded on 02/06/2014.

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