La Dina Fault
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La Dina Fault () is a regional dextral
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 ...
thrust fault A thrust fault is a break in the Earth's crust, across which older rocks are pushed above younger rocks. Thrust geometry and nomenclature Reverse faults A thrust fault is a type of reverse fault that has a dip of 45 degrees or less. I ...
in the
departments Department may refer to: * Departmentalization, division of a larger organization into parts with specific responsibility Government and military * Department (administrative division), a geographical and administrative division within a country, ...
of Huila and Tolima in southwestern
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 has a total length of and runs along an average northeast to southwest
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 032.9 ± 13 in the
Upper Magdalena Valley Upper may refer to: * Shoe upper or ''vamp'', the part of a shoe on the top of the foot * Stimulant, drugs which induce temporary improvements in either mental or physical function or both * ''Upper'', the original film title for the 2013 found fo ...
and 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 ...
.


Description

La Dina Fault lies east of La Plata Fault in southwestern Colombia. The fault displaces
Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. ...
( Saldaña Formation),
Cretaceous The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...
(
Chicoral The area of Chicoral is located in the southernmost part of the township of Bitaco and within the municipality of La Cumbre in the Valle del Cauca Department of Colombia. It is home to the Hindú Tea Plantation, a major part of the Bitaco River ...
and Olini Groups), and
Tertiary Tertiary (from Latin, meaning 'third' or 'of the third degree/order..') may refer to: * Tertiary period, an obsolete geologic period spanning from 66 to 2.6 million years ago * Tertiary (chemistry), a term describing bonding patterns in organic ch ...
(
Honda Group commonly known as just Honda, is a Japanese multinational conglomerate automotive manufacturer headquartered in Minato, Tokyo, Japan. Founded in October 1946 by Soichiro Honda, Honda has been the world's largest motorcycle manufacturer sin ...
)
sedimentary rock Sedimentary rocks are types of rock (geology), rock formed by the cementation (geology), cementation of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or de ...
s, which are common in the
Upper Magdalena Valley Upper may refer to: * Shoe upper or ''vamp'', the part of a shoe on the top of the foot * Stimulant, drugs which induce temporary improvements in either mental or physical function or both * ''Upper'', the original film title for the 2013 found fo ...
. Local names assigned to the southern extension of this fault are from north to south: Betania, Pital-Agredo and Magdalena.Paris et al., 2000a, p.58 It is also called the El Agrado-Betania Fault in Huila, where it underlies the
Betania Reservoir Betania may refer to: * Betania, Colombia, town and municipality in the Colombian department of Antioquia * Betânia, Pernambuco, city in the state of Pernambuco, Brazil * Betania, Chiapas, town and in Teopisca municipality, in Chiapas in southern ...
.Mapa Geológico del Huila, 2001 The fault is marked by well-developed trace, abrupt slope changes, saddles, and small scarps.


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 ...
* Garzón-Pitalito Fault * La Plata Fault


References


Bibliography

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Maps

* * {{Tectonism in Colombia Seismic faults of Colombia Thrust faults Strike-slip faults Inactive faults Faults Faults Faults