Argelia Fault

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Argelia Fault
Falla de Argelia
Map showing the location of Argelia Fault
Map showing the location of Argelia Fault
Etymology Argelia
Country  Colombia
Region Andean
State Risaralda, Valle del Cauca
Characteristics
Range Western Ranges, Andes
Part of Andean oblique faults
Length 59.4 km (36.9 mi)
Strike 014.5 ± 18
Dip West
Dip angle Moderate to high
Displacement <0.2 mm (0.0079 in)/yr
Tectonics
Plate North Andean
Status Inactive
Type Oblique thrust fault
Movement Dextral reverse
Age Quaternary
Orogeny Andean

The Argelia Fault (Spanish: Falla de Argelia) is an inactive dextral oblique thrust fault in the departments of Risaralda and Valle del Cauca in Colombia. The fault has a total length of 59.4 kilometres (36.9 mi) and runs along an average north to south strike of 014.5 ± 18 in the Western Ranges of the Colombian Andes.

Etymology

The fault is named after Argelia, Valle del Cauca.[1]

Description

The Argelia Fault is located in the Western Ranges of the Colombian Andes, to the west of the city of Pereira. The fault cuts Mesozoic oceanic rocks that were accreted to the continent during Late Cretaceous time. The Argelia Fault shows some neotectonic features and probably connects with the Garrapatas Fault.

The vertical component of the fault is west-side up. Dextral movement in this fault is an exception to the common sinistral (left-lateral) movement of north-south trending faults in the region.[2]

See also

References

  1. ^ Paris et al., 2000, p.51
  2. ^ Paris et al., 2000, p.52

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

  • 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.
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