Special Session: Onshore Quaternary and Contemporary Tectonics: Implications for Seismic Hazards
Type: Poster
Day: 5/15/2018
Time: 8:45 AM
Room: Riverfront South
Abstract
The Guaicaramo Fault System (GFS) consists of several parallel faults with 45° NE strike average and defines the eastern edge of the Colombian Eastern Cordillera. These faults cut Cretaceous and Paleogene sediments mainly, and have built an orogenic wedge that defines geomorphogically the Llanos Foothills in this región (For this región Paris et al. 2000, have classified the fauls central and southern Guaicaramo). The GFS was created from Late Miocene by the tectonic inversion of normal faults that originated mostly during a transtensional regime that developed during Late Oligocene - Early Miocene lapse, when the Panama arc began to adjust in the northwest corner of South America. In the last 3 millions years with the adjust of the Panama arc and the development of the current geometry of the subduction slab of Nazca plate under northwestern South America toward north of 4° N, the orogenic wedge started to grow where its eastern boundary is the central and southern Guaicaramo faults planes.
In this work was analizated the GFS in the limits of Boyaca, Casanare, Cundinamarca and Meta departments, where several hot springs are associated to the fault scarp of Southern Guiacaramo fault. These hot springs are an geotourism interest.
It is sought here to try to understand the relationship that exists between the presence of hot springs with fault planes in deep and its tectonic activity with help of geologic and geophysic regional data review.
In same way, a review of the seismology information is made with data available from National Colombian Seismological Network. In this región was occur the M 0= 6.5 earthquake of january 19, 1995.
Author(s):
Chicangana G. Universidad Santo Tomas, Villavicencio, Colombia
Bocanegra A. Universidad Santo Tomas, Villavicencio, Colombia
Vargas Jimenez C. A. Universidad Nacional de Colombia, Bogotá, Colombia
Kammer A. Universidad Nacional de Colombia, Bogotá, Colombia
Arboleda L. Universidad Santo Tomas, Villavicencio, Colombia
Guaicaramo Fault System, Boyaca, Casanare, Cundinamarca and Meta Departments, Colombia: A Review
Category
Onshore Quaternary and Contemporary Tectonics: Implications for Seismic Hazards