The Cucuana Fault (Spanish : Falla Cucuana ) is a dextral strike-slip fault in the departments of Tolima and Cundinamarca in Colombia . The fault has a total length of 141.4 kilometres (87.9 mi) and runs along an average east-northeast to west-southwest strike of 067.9 ± 6 crossing the Middle Magdalena Valley from the Central towards the Eastern Ranges of the Colombian Andes .
Etymology
The fault is named after the Cucuana River .[ 1]
Description
The Cucuana Fault is parallel to and south of the Ibagué Fault in the Central Ranges of the Colombian Andes , crossing Paleozoic metamorphic rocks , Mesozoic igneous rocks (Ibagué Batholith ), and Tertiary beds. The fault extends into the Eastern Ranges across the Middle Magdalena Valley , cutting Cretaceous beds. The Quaternary sedimentary and volcanic fill of the Magdalena River valley is not reported as having been deformed by the fault. This fault has a prominent trace on satellite images. It has displaced drainages, spurs, fault saddles, and formed triangular facets, and appears to structurally control the course of the Cucuana River.[ 1]
See also
References
^ a b Paris et al., 2000a, p.49
Bibliography
Maps
Tectonic plates Terranes Terrane-bounding Intraterrane
Major Orogenies Other topics Sources Paris, Gabriel; Machette, Michael N.; Dart, Richard L.; Haller, Kathleen M. (2000). Map and Database of Quaternary Faults and Folds in Colombia and its Offshore Regions (PDF) . USGS . pp. 1–66. Retrieved 2017-06-20 . 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 .
