Bagre Norte Fault

The Bagre Norte Fault (Spanish: Falla de Bagre Norte) is a sinistral oblique strike-slip fault in the departments of Antioquia and Bolívar in northern Colombia. The fault has a total length of 159.3 kilometres (99.0 mi) and runs along an average north to south strike of 359 ± 14 along the Central Ranges of the Colombian Andes and the Serranía de San Lucas.

Bagre Norte Fault
Falla de Bagre Norte
EtymologyEl Bagre
Country Colombia
RegionAndean, Caribbean
StateAntioquia, Bolívar
Characteristics
RangeCentral Ranges, Andes & Serranía de San Lucas
Part ofAndean oblique faults
Length159.3 km (99.0 mi)
Strike359 ± 14
DipEast
Dip angleHigh
Displacement<0.2 mm (0.0079 in)/yr
Tectonics
PlateNorth Andean
StatusInactive
TypeOblique strike-slip fault
MovementSinistral reverse
AgeQuaternary
OrogenyAndean

Etymology

The fault is named after El Bagre.[1]

Description

The Bagre Norte Fault branches from the Palestina Fault, close to the Alicante River. The fault juxtaposes Precambrian metamorphic rocks on the east against sedimentary rocks in the west. The fault shows as a prominent topographic lineament on satellite images and aerial photographs. Prominent scarp faces west, the fault appears to displace erosion surfaces of the Central Ranges about 200 metres (660 ft). The strong geomorphologic expression suggests Quaternary activity.[1]

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See also

References
  1. Paris et al., 2000, p.29

Bibliography

Maps

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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