Abriaquí Fault

Geological fault in Colombia
06°40′09″N 76°06′38″W / 6.66917°N 76.11056°W / 6.66917; -76.11056Country ColombiaRegionAndeanStateAntioquiaCharacteristicsRangeWestern Ranges, AndesPart ofAndean oblique faultsLength33.8 km (21.0 mi)Strike311 ± 2DipNortheastDip angleHighDisplacement0.2–1 mm (0.0079–0.0394 in)/yrTectonicsPlateNorth AndeanStatusInactiveTypeOblique thrust faultMovementReverse sinistralAgeQuaternaryOrogenyAndean

The Abriaquí Fault (Spanish: Falla de Abriaquí) is an oblique thrust fault in the department of Antioquia in northwestern Colombia. The fault has a total length of 33.8 kilometres (21.0 mi) and runs along an average northwest to southeast strike of 311 ± 2 in the Western Ranges of the Colombian Andes.

Etymology

The fault is named after Abriaquí.[1]

Description

The Abriaquí Fault parallels the Cañasgordas Fault to the south, cutting Cretaceous oceanic volcanic rocks as well as Tertiary and Cretaceous sedimentary rocks. The fault has a well defined fault trace with scarps, saddles, and deflected streams. The slip rate is estimated at 0.2 to 1 millimetre (0.0079 to 0.0394 in) per year deduced from displaced geomorphologic features.[1]

See also

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  • Earth sciences portal
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References

  1. ^ a b Paris et al., 2000, p.18

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.

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.
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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.
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