[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/otu-norte-fault-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki40\/otu-norte-fault-wikipedia\/","headline":"Ot\u00fa Norte Fault – Wikipedia","name":"Ot\u00fa Norte Fault – Wikipedia","description":"From Wikipedia, the free encyclopedia The Ot\u00fa Norte or Ot\u00fa-Pericos Fault (Spanish: Falla de Ot\u00fa Norte) is an inactive sinistral","datePublished":"2016-04-02","dateModified":"2016-04-02","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki40\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","url":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","height":"1","width":"1"},"url":"https:\/\/wiki.edu.vn\/en\/wiki40\/otu-norte-fault-wikipedia\/","wordCount":2433,"articleBody":"From Wikipedia, the free encyclopediaThe Ot\u00fa Norte or Ot\u00fa-Pericos Fault (Spanish: Falla de Ot\u00fa Norte) is an inactive sinistral oblique strike-slip fault in the department of Antioquia in northern Colombia. The fault has a total length of 144.4 kilometres (89.7\u00a0mi) and runs along an average north-northwest to south-southeast strike of 346.4 \u00b1 8, cross-cutting the northern part of the Central Ranges of the Colombian Andes. Together with the parallel Bagre Norte Fault the fault separates the Central Ranges from its northeasternmost continuation, the Serran\u00eda de San Lucas.Table of ContentsEtymology[edit]Description[edit]Activity[edit]Economic importance[edit]See also[edit]References[edit]Bibliography[edit]Maps[edit]Further reading[edit]Etymology[edit]The fault was by Feininger et al. in 1972 named after Ot\u00fa Airport in vereda Ot\u00fa in Remedios, Antioquia.[1]Description[edit]The Ot\u00fa Norte Fault crosses the northern part of the Central Ranges of the Colombian Andes. The fault strikes north-northwest to south-southeast and appears to branch off the Palestina Fault. The Ot\u00fa Fault extends in a northwest direction to near Nech\u00ed, where it is covered by young Quaternary deposits. The sinistral oblique reverse fault separates blocks of totally dissimilar geology and lithology; the metamorphic Precambrian San Lucas Complex and Jurassic igneous rocks (diorites) of the Segovia Batholith on the east are juxtaposed against the Cretaceous Santa Isabel Stock and Paleozoic quartz-feldspar gneisses and quartzitic arc rocks of the Cajamarca Complex on the west.[2][3] Just west of Remedios, the fault forms the contact between the Cretaceous Antioquia and Jurassic Segovia Batholiths.[4] The northern end apparently splays into several faults that cross the Nech\u00ed River.[5]Activity[edit]A rate of less than 0.2 millimetres (0.0079\u00a0in) per year is estimated for the fault, considered inactive. Displaced Quaternary terraces as high as 140 metres (460\u00a0ft) are reported and the fault offsets the Tertiary erosion surface of the Central Ranges.[6] A total displacement of the fault has been estimated at 66 kilometres (41\u00a0mi).[7]Economic importance[edit]The fault separates two major gold mining areas in Antioquia; the Segovia-Remedios mining district and La Ye mine in the east,[8][9] and the placer deposits of Gramalote and Cisneros in the west.[10][11] North of Zaragoza, the fault underlies the El Lim\u00f3n mine.[12] Antioquia produces 50% of all gold in Colombia.[13]The ductile zone of the fault produced mylonites in mainly the amphibolite facies of the Segovia Batholith.[14] This ductile behavior was later overprinted by fragile tectonics, leaving cataclasis and fault breccias in the fault zone as well as striations in the quartz of the batholith. These deformations are interpreted as second grade Riedel shears.[15]See also[edit]References[edit]^ Consorcio GSG, 2015, p.168^ Fonseca et al., 2011, p.40^ Fonseca et al., 2011, p.64^ Geological Map of Antioquia, 1999^ Paris et al., 2000, p.28^ Paris et al., 2000, p.29^ \u00c1lvarez et al., 2007, p.49^ Segovia-Remedios mining district^ Mining Atlas – La Ye^ Mining Atlas – Gramalote^ Mining Technology – Cisneros^ Mining Atlas – El Lim\u00f3n^ Fonseca et al., 2011, p.126^ \u00c1lvarez et al., 2007, p.47^ \u00c1lvarez et al., 2007, p.48Bibliography[edit]\u00c1lvarez Galindez, Milton; Oswaldo Ord\u00f3\u00f1ez Carmona; Mauricio Valencia Mar\u00edn, and Antonio Romero Hern\u00e1ndez. 2007. Geolog\u00eda de la zona de influencia de la Falla Ot\u00fa en el Distrito Minero Segovia-Remedios – Geology of the influence zone of the Ot\u00fa Fault in the Segovia-Remedios mining district. Dyna 74. 41\u201351. Accessed 2018-06-05.Consorcio, GSG. 2015. Memoria Plancha 94 – El Bagre – 1:100,000, 1\u2013196.Servicio Geol\u00f3gico Colombiano.Fonseca P. et al, H\u00e9ctor Antonio. 2011. Memoria Plancha 133 – Puerto Berr\u00edo – 1:100,000, 1\u2013145.INGEOMINAS.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\u201366.USGS. Accessed 2017-09-18..Maps[edit]Further reading[edit]Page, W.D. 1986. Seismic geology and seismicity of Northwestern Colombia, 1\u2013200.San Francisco, California, Woodward-Clyde Consultants Report for ISA and Integral Ltda., Medell\u00edn.Tectonic platesTerranesTerrane-boundingfault systemsIntraterranefaultsMajorearthquakesOrogeniesOther topicsSources\u00a0 \u00a0 \u00a0Paris, 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.\u00a01\u201366. Retrieved 2017-06-20.\u00a0 \u00a0 \u00a0 G\u00f3mez Tapias, Jorge; Montes Ram\u00edrez, Nohora E.; Almanza Mel\u00e9ndez, Mar\u00eda F.; Alc\u00e1rcel Guti\u00e9rrez, Fernando A.; Madrid Montoya, C\u00e9sar A.; Diederix, Hans (2015). Geological Map of Colombia. Servicio Geol\u00f3gico Colombiano. pp.\u00a01\u2013212. Retrieved 2019-10-29.\u00a0 \u00a0 \u00a0 Various authors (2014). Enciclopedia de desastres naturales hist\u00f3ricos de Colombia (PDF). Universidad del Quind\u00edo. pp.\u00a01\u201321. Retrieved 2017-06-20."},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/otu-norte-fault-wikipedia\/#breadcrumbitem","name":"Ot\u00fa Norte Fault – Wikipedia"}}]}]