The Murrí 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 ...

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 department of

Antioquia Antioquia is the Spanish form of Antioch. Antioquia may also refer to: * Antioquia Department Antioquia () is one of the 32 departments of Colombia, located in the central northwestern part of Colombia with a narrow section that borders th ...

in northwestern

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 north–south

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 001.4 ± 5 along 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 the

Murrí River The Murrí River is a river of Colombia. It drains into the Caribbean Sea via the Atrato River. Geography The Río Murrí rises on the western slopes of the Cordillera Occidental, in Las Orquídeas National Natural Park (Antioquia department). It ...

.Paris et al., 2000, p.17

Description

Located in the western limb of the Western Ranges of the

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 ...

. The fault puts

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 ...

mafic

igneous rock Igneous rock ( ), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rocks are formed through the cooling and solidification of magma or lava. The magma can be derived from partial ...

s to the east in contact with Tertiary marine sedimentary rocks to the west. The fault cuts

mud flow A mudflow, also known as mudslide or mud flow, is a form of mass wasting involving fast-moving flow of debris and dirt that has become liquified by the addition of water. Such flows can move at speeds ranging from 3 meters/minute to 5 meters/se ...

s dated at about 10,000 to 15,000 years. It causes strong lineaments and offsets terraces and

alluvial 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 ...

deposits. The fault forms well-developed scarps of about high on late Quaternary alluvial deposits. The fault forms the course of the Penderisco River and cuts perpendicular to the Ocaidó Valley.Plancha 145, 2002 Some authors consider the fault the southern part of the Murrí-Mutatá Fault.Plancha 129, 2002González, 2001, p.183

Etymology

Description

See also

References

Bibliography

Maps

Further reading