Unformatted text preview: eogene deformation took place only in
the western flank of this foldbelt. These results are applicable in a regional scale to the Magdalena Valley, since
similar deformation timing has been observed further south (Amézquita & Montes, 1994). This structural style had
not been previously identified or quantified in the northern Andes, and is probably related to the onset of oblique
interaction between the northern Andes and the deformation front of the Caribbean plate (greater Antilles arc).
Continued oblique convergence throughout the Paleogene records the eastwrd relative motion of the Caribbean plate
with respect to the northern Andes.
Amézquita F., and Montes, C., 1994, Sección geológica el Maco-Buenavista: estructura en el sector occidental del
valle superior del Magdalena, in Etayo-Serna, ed., Estudios Geológicos del Valle Superior del Magdalena,
Ecopetrol, VI-1, VI-36.
Montes, C., 2001, Three dimensional structure and kinematics of the Piedras-Girardot foldbelt in the northern Andes
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- Winter '14
- Plate Tectonics, Northern Andes, Piedras-Girardot foldbelt