Boletín de Geología

Vol. 34 No. 2 (2012): Boletín de Geología
Articles

STRUCTURAL ANALYSIS OF THE BUCARAMANGA SEGMENT (BS) OF THE BUCARAMANGA FAULTS SYSTEM (BFS), BETWEEN PAILITAS AND CURUMANÍ, CESAR - COLOMBIA.

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  • Mario Andrés Cuéllar Cárdenas,
  • Julián Andrés López Isaza,
  • Jairo Alonso Osorio Naranjo,
  • Edgar Joaquín Carrillo Lombana
Mario Andrés Cuéllar Cárdenas
Bio
Julián Andrés López Isaza
Bio
Jairo Alonso Osorio Naranjo
Bio
Edgar Joaquín Carrillo Lombana
Bio

Published 2013-04-01

How to Cite

Cuéllar Cárdenas, M. A., López Isaza, J. A., Osorio Naranjo, J. A., & Carrillo Lombana, E. J. (2013). STRUCTURAL ANALYSIS OF THE BUCARAMANGA SEGMENT (BS) OF THE BUCARAMANGA FAULTS SYSTEM (BFS), BETWEEN PAILITAS AND CURUMANÍ, CESAR - COLOMBIA. Boletín De Geología, 34(2). Retrieved from https://revistas.uis.edu.co/index.php/revistaboletindegeologia/article/view/3113
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Abstract

 The Bucaramanga Segment (BS) of the Bucaramanga Faults System (BFS), located among the municipalities of Pailitas and Curumaní, Department of Cesar, Colombia, has been interpreted as a reverse type fault of high angle, with the East Block up-lifted. By means of structural and microstructural analysis of the units outcropping, the behavior of this fault segment is established for this sector, as well as its relationship with the surrounding structures. The obtained results indicate that the BS presents a NNW direction with left lateral component and a strong shear zone of about 5 km wide, in which ductile (mylonites) and brittle (cataclasites) fault rocks are present. The occurrence of pseudotachylites in the BS suggests frictional slip faults, probably with seismic events associated. Additionally, it was found that the BFS is superimposed by two major phases of deformation, the first is related to low-angle thrust faults with tectonic transport to the West and the second, comprises NE-SW right lateral faults, related to a Espíritu Santo Fault´s left branching splay.

Keywords: Bucaramanga Faults System, fault rocks, pseudotachylites, mylonites, cataclasites, Espíritu Santo Fault.

 

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