Argelia Fault

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.

Argelia Fault
Falla de Argelia
Map showing the location of Argelia Fault
Map showing the location of Argelia Fault
EtymologyArgelia
Coordinates04°51′44″N 75°57′09″W
Country Colombia
RegionAndean
StateRisaralda, Valle del Cauca
Characteristics
RangeWestern Ranges, Andes
Part ofAndean oblique faults
Length59.4 km (36.9 mi)
Strike014.5 ± 18
DipWest
Dip angleModerate to high
Displacement<0.2 mm (0.0079 in)/yr
Tectonics
PlateNorth Andean
StatusInactive
TypeOblique thrust fault
MovementDextral reverse
AgeQuaternary
OrogenyAndean

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
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