Mulato-Getudo Fault
Mulato-Getudo Fault | |
---|---|
Mulato-Jetudo Fault, Falla de Mulato-Jetudo | |
Etymology | Mulatos & |
Coordinates | 05°20′35″N 74°51′23″W / 5.34306°N 74.85639°WCoordinates: 05°20′35″N 74°51′23″W / 5.34306°N 74.85639°W |
Country | Colombia |
Region | Andean |
State | Antioquia, Caldas, Tolima |
Cities | Mariquita |
Characteristics | |
Range | Central Ranges, Andes |
Part of | Andean oblique faults |
Length | 187.3 km (116.4 mi) |
Strike | 016.7 ± 9 |
Dip | West |
Dip angle | High to medium |
Displacement | <0.2 mm (0.0079 in)/yr |
Tectonics | |
Plate | North Andean |
Status | Inactive |
Type | Oblique thrust fault |
Movement | Reverse sinistral |
Age | Quaternary |
Orogeny | Andean |
The Mulato-Getudo or Mulato-Jetudo Fault (Spanish: Falla de Mulato-Jetudo) is a sinistral oblique thrust fault in the departments of Tolima, Caldas and Antioquia in central Colombia. The fault has a total length of 187.3 kilometres (116.4 mi) and runs along an average north-northeast to south-southwest strike of 016.7 ± 9 in the Middle Magdalena Valley and along the western foothills of the Central Ranges of the Colombian Andes.
Etymology[]
The fault is named after the Mulatos and , left tributaries of the Magdalena River.[1]
Description[]
The Mulato-Getudo Fault, in some parts called Jetudo Fault,[2] extends along the eastern foothills of the Central Ranges of the Colombian Andes, where it marks the abrupt break in slope of the east-tilted Tertiary erosion surface of the Cordillera and the flat alluvial plains of the Magdalena River in the Middle Magdalena Valley. The fault forms a regional-scale degraded fault escarpment with an outstanding break in slope. It offsets Pliocene to Quaternary deposits and an extensive tilted erosional surface of probable Miocene to Pliocene age (pre-, older than 1.5 Ma). The northern half of the fault is characterised by aligned drainages and broad valleys.[1] The fault possibly underlies the Honda Group south of the La Miel River.[3]
See also[]
References[]
Bibliography[]
- Map and Database of Quaternary Faults and Folds in Colombia and its Offshore Regions, 1–66. USGS. Accessed 2017-09-18. ; ; , and . 2000a.
Maps[]
- Plancha 188 - La Dorada - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06. , and . 2009.
- Plancha 5-09 del Atlas Geológico de Colombia 2015 – 1:500,000, 1. Servicio Geológico Colombiano. Accessed 2017-06-06. ; ; , and . 2015.
- Map of Quaternary Faults and Folds of Colombia and Its Offshore Regions, 1. USGS. Accessed 2017-09-18. ; ; , and . 2000b.
Further reading[]
- . 1986. Seismic geology and seismicity of Northwestern Colombia, 1–200. San Francisco, California, Woodward-Clyde Consultants Report for ISA and Integral Ltda., Medellín.
- Seismic faults of Colombia
- Thrust faults
- Strike-slip faults
- Inactive faults
- Geography of Antioquia Department
- Geography of Caldas Department
- Geography of Tolima Department
- Magdalena River