The Montenegro Fault () is an
oblique
Oblique may refer to:
* an alternative name for the character usually called a slash (punctuation) ( / )
*Oblique angle, in geometry
* Oblique triangle, in geometry
* Oblique lattice, in geometry
* Oblique leaf base, a characteristic shape of the ...
sinistral
strike-slip fault
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic ...
in the
department of
Quindío in west-central
Colombia
Colombia, officially the Republic of Colombia, is a country primarily located in South America with Insular region of Colombia, insular regions in North America. The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuel ...
. The fault is part of the megaregional
Romeral Fault System and has a total length of and runs along an average northwest to southeast
strike
Strike may refer to:
People
*Strike (surname)
* Hobart Huson, author of several drug related books
Physical confrontation or removal
*Strike (attack), attack with an inanimate object or a part of the human body intended to cause harm
* Airstrike, ...
of 025.1 ± 9 in the
Central Ranges
Central Ranges (code CER) is an Australian bioregion, with an area of 101,640.44 square kilometres (39,244 sq mi) spreading across two states and one territory: South Australia, Western Australia, and the Northern Territory.[Andes
The Andes ( ), Andes Mountains or Andean Mountain Range (; ) are the List of longest mountain chains on Earth, longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range ...]
.
Etymology
The fault is named after
Montenegro
, image_flag = Flag of Montenegro.svg
, image_coat = Coat of arms of Montenegro.svg
, coa_size = 80
, national_motto =
, national_anthem = ()
, image_map = Europe-Mont ...
,
Quindío.
[Paris et al., 2000a, p.20]
Description
The Montenegro Fault is part of the Romeral Fault System, running through the western slope of the Central Ranges. The fault is located to the west of the city of
Armenia
Armenia, officially the Republic of Armenia, is a landlocked country in the Armenian Highlands of West Asia. It is a part of the Caucasus region and is bordered by Turkey to the west, Georgia (country), Georgia to the north and Azerbaijan to ...
. The fault crosscuts and deforms the
Pleistocene
The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fin ...
volcanic and volcano-sedimentary deposits of the
Quindío Fan (), which covers about .
[
The Montenegro Fault forms outstanding ]fault scarp
A fault scarp is a small step-like offset of the ground surface in which one side of a fault has shifted vertically in relation to the other. The topographic expression of fault scarps results from the differential erosion of rocks of contrastin ...
s as much as in height, beheaded streams, hanging valleys, ponded alluvium
Alluvium (, ) is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings. Alluvium is also sometimes called alluvial deposit. Alluvium is ...
, aligned and offset drainages, as well as soil and rock slides on the face of the scarps. The fault deforms Quaternary
The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS), as well as the current and most recent of the twelve periods of the ...
volcanic debris flow
Debris flows are geological phenomena in which water-laden masses of soil and fragmented Rock (geology), rock flow down mountainsides, funnel into stream channels, entrain objects in their paths, and form thick, muddy deposits on valley floors. ...
s and ash deposits.[Paris et al., 2000a, p.21] The Espejo River follows the strike of the Montenegro Fault.[Mapa Geológico de Quindío, 2000]
See also
* List of earthquakes in Colombia
This is a list of earthquakes in Colombia. Colombia is a seismically active country and has a large seismic risk in many areas of its territory due to its location at the boundaries of the Malpelo, Panama, Caribbean, North Andes (where most ea ...
* Armenia Fault
References
Bibliography
*
Maps
*
*
Further reading
*
{{Tectonism in Colombia
Seismic faults of Colombia
Strike-slip faults
Normal faults
Inactive faults
Faults