Cimitarra Fault
The Cimitarra Fault (Spanish: Falla de Cimitarra) is a sinistral oblique thrust fault in the departments of Antioquia, Bolívar and Santander in central Colombia. The fault has a total length of 136.5 kilometres (84.8 mi) and runs along an average northeast to southwest strike of 323 ± 3 in the Middle Magdalena Valley and Central Ranges of the Colombian Andes.
Etymology
The fault is named after the Cimitarra River, Antioquia, a left tributary of the Magdalena River.[1]
Description
The Cimitarra Fault splays from the Palestina Fault in a northeasterly direction on the eastern border of the Central Ranges of the Colombian Andes,[1] passes north of Barrancabermeja,[2] and possibly connects to the Bucaramanga-Santa Marta Fault in the northeast.[3] The fault displaces Jurassic to Cretaceous volcanic rocks, Mesozoic igneous rocks, a Tertiary erosion surface in the Central Ranges, and late Quaternary sediments. Portions of the fault are pre-Pliocene in age, since it is locally covered by undeformed Pliocene sediments. Farther northeast, the fault is overlain by young alluvial deposits of the Middle Magdalena Valley.[1]
The fault is marked by well preserved fault scarps, long straight traces, displaced drainages, and it forms aligned river courses. The slip rate is calculated at 0.1 to 1 millimetre (0.0039 to 0.0394 in) per year.[4]
See also
References
Bibliography
- Paris, Gabriel; Michael N. Machette; Richard L. Dart, and Kathleen M. Haller. 2000a. Map and Database of Quaternary Faults and Folds in Colombia and its Offshore Regions, 1–66. USGS. Accessed 2017-09-18.
Maps
- Gómez, J.; N.E. Montes; Á. Nivia, and H. Diederix. 2015. Plancha 5-06 del Atlas Geológico de Colombia – 1:500,000, 1. Servicio Geológico Colombiano. Accessed 2017-06-06.
- Paris, Gabriel; Michael N. Machette; Richard L. Dart, and Kathleen M. Haller. 2000b. Map of Quaternary Faults and Folds of Colombia and Its Offshore Regions, 1. USGS. Accessed 2017-09-18.
Further reading
- Page, W.D. 1986. Seismic geology and seismicity of Northwestern Colombia, 1–200. San Francisco, California, Woodward-Clyde Consultants Report for ISA and Integral Ltda., Medellín.
- v
- t
- e
- Chibcha
- Tahamí
- Caribe
- La Guajira
- Arquía
- Quebradagrande
- Anacona
- Amazonian Craton
- Río Negro-Juruena
fault systems
- Bagre Norte
- Bucaramanga-Santa Marta (BSF)
- Cimitarra
- Cucuana
- Eastern Frontal (EFS)
- Afiladores
- Algeciras
- Garzón-Pitalito
- Guaicáramo
- Guayuriba
- Mocoa
- San Pedro-Cumaral
- Servitá-Santa María
- Sibundoy
- Suazá
- Yopal
- Boconó
- Mulato-Getudo
- Oca
- Otú Norte
- Palestina
- Romeral (RFS)
faults
Chibcha |
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Tahamí |
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Caribe | |
La Guajira |
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Other terranes |
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earthquakes
- Andean
- Famatinian
- Sunsás
- Rondônia-Juruá
- Tapajós
- Transamazonian
- Carajas-Imataca
Gómez Tapias, Jorge; Montes Ramírez, Nohora E.; Almanza Meléndez, María F.; Alcárcel Gutiérrez, Fernando A.; Madrid Montoya, César A.; Diederix, Hans (2015). Geological Map of Colombia. Servicio Geológico Colombiano. pp. 1–212. Retrieved 2019-10-29.
Various authors (2014). Enciclopedia de desastres naturales históricos de Colombia (PDF). Universidad del Quindío. pp. 1–21. Retrieved 2017-06-20.