North Andes Plate

North Andes Plate
North Andes Plate
	North Andes Plate (note: outdated Nazca Plate)
Type	Micro
Movement1	North-west
Speed1	23mm/year
Features	Colombia; Ecuador; Venezuela
	1Relative to the African Plate

The North Andes Plate or North Andes Block is a small tectonic plate (microplate) located in the northern Andes. It is squeezed between the faster moving South American Plate and the Nazca Plate to the southwest. Due to the subduction of the Coiba and Malpelo plates, this area is very prone to volcanic and seismic activity, with many historical earthquakes.

Boundaries

The North Andes Plate is bound by (clockwise from north):

Caribbean Plate
South American Plate
Malpelo Plate — considered a part of the Nazca Plate before 2017^[1]
Coiba Plate — considered a part of the Nazca Plate before 2016^[2]
Panama Plate

Terranes

The Colombian part of the North Andes Plate is subdivided into several terranes:^[3]

Terranes belonging to the Colombian part of the North Andes Plate
Abbr	Name	Age range	Basins	Complexes	Ranges	Departments	Comments	Notes
CHT	Chibcha	Mesoproterozoic	• Catatumbo • Cesar-Ranchería • Eastern Cordillera (Altiplano Cundiboyacense - Bogotá) • VMM • VSM	Ariarí, Garzón, Floresta, Quetame, Santander	Central, Eastern, Perijá, SNSM, San Lucas, La Macarena	Antioquia, Arauca, Bogotá, Bolívar, Boyacá, Caquetá, Casanare, Cesar, Cundinamarca, Huila, Magdalena, Meta, Putumayo, Norte de Santander, Santander, Tolima	Largest terrane, named after Chibcha	^[4]^[5]^[6]
CHT	Chibcha	Neoproterozoic		Ariarí, Garzón, Floresta, Quetame, Santander	Central, Eastern, Perijá, SNSM, San Lucas, La Macarena		Largest terrane, named after Chibcha	^[4]^[5]^[6]
TA	Anacona	Devonian	none	Anacona	Central	Antioquia	Tiny terrane
TA	Anacona	Carboniferous	none	Anacona	Central	Antioquia	Tiny terrane
TT	Tahamí	Permian	• Amagá • Cocinetas • VIM	Antioquia	Central, Macuira, SNSM	Antioquia, Bolívar, Caldas, Cauca, La Guajira, Magdalena, Nariño, Risaralda, Sucre, Valle del Cauca	Most extensive terrane
TT	Tahamí	Triassic	• Amagá • Cocinetas • VIM	Antioquia	Central, Macuira, SNSM		Most extensive terrane
TAR	Arquía	Early Cretaceous	none	Arquía	Central	Antioquia, Caldas, Cauca, Nariño, Quindío, Risaralda, Valle del Cauca	Thinly banded terrane	^[7]^[8]^[9]
TQ	Quebradagrande	Early Cretaceous	none	Quebradagrande	Central	Antioquia, Caldas, Cauca, Nariño, Quindío, Risaralda, Valle del Cauca	Thinly banded terrane	^[7]^[9]^[10] ^[11]^[12]^[13]
TC	Caribe	Late Cretaceous	• Cauca-Patía • Chocó • Sinú-San Jacinto • Tumaco • Urabá	Santa Cecilia-La Equis	Central, Western, Darién, Baudó, Montes de María	Antioquia, Atlántico, Caldas, Cauca, Chocó, Córdoba, Nariño, Quindío, Risaralda, Sucre, Valle del Cauca	El Totumo
TLG	La Guajira	Late Cretaceous	• La Guajira	Etpana, Macuira	Macuira, SNSM	La Guajira, Magdalena	Tayrona, Cabo de la Vela

Tectonics

Subduction of the Coiba Plate underneath the North Andes Plate causes frequent earthquakes in the Bucaramanga Nest, the most seismically active area in the world. The Bucaramanga-Santa Marta Fault stretches along the plate for more than 600 kilometers from north to south. The plate boundary with the South American Plate is most tectonically active along a more than 900 kilometer long megaregional fault system; the Eastern Frontal Fault System.

This fault system, extending into Ecuador and Venezuela all along the northern Andes, separates the terranes from the North Andes Plate from:^[3]

South American Plate features bordering the Chibcha Terrane of the North Andes Plate
Abbr	Name	Age range	Basins	Complexes	Ranges	Departments	Comments	Notes
PRNJ	Río Negro-Juruena Province	Paleoproterozoic	• Llanos • Putumayo • Amazonas	Mitú, Parguaza, Guaviare	Chiribiquete, Mavecure	Arauca, Caquetá, Casanare, Guainía, Guaviare, Meta, Putumayo, Vaupés, Vichada	Part of Amazonian Craton	^[14]^[15]

References

Bibliography

Manosalva Sánchez, Sandra Rocío; Wilson Enario Naranjo Merchán; Carlos Alberto Ríos Reyes; Ricardo Amorocho Parra, and Oscar Mauricio Castellanos Alarcón. 2017. Estudio petrogenetico de las rocas metamorficas del Macizo de Floresta, Cordillera Oriental, Andes Colombianos. Boletín de Geología 39. 83–103. Accessed 2019-10-26.
Zhang, Tuo; Richard G. Gordon; Jay K. Mishra, and Chengzu Wang. 2017. The Malpelo Plate Hypothesis and implications for nonclosure of the Cocos-Nazca-Pacific plate motion circuit, 1. AGU Fall Meeting, New Orleans. Accessed 2018-06-06.
Bonilla, Amed; José Carlos Frantz; Juliana Charão Marques; Thomas Cramer; José Alejandro Franco, and Zeze Amaya. 2016. Magmatismo rapakivi en la cuenca media del río Inírida, departamento de Guainía, Colombia. Boletín de Geología 38. 17–32. Accessed 2019-10-26.
Chiarabba, Claudio; Pasquale De Gori; Claudio Faccenna; Fabio Speranza; Danilo Seccia; Viviana Dionicio, and German A. Prieto. 2016. Subduction system and flat slab beneath the Eastern Cordillera of Colombia. Geochemistry, Geophysics, Geosystems 17. 16–27. Accessed 2018-06-06.
Gómez Tapias, Jorge; Nohora E. Montes Ramírez; María F. Almanza Meléndez; Fernando A. Alcárcel Gutiérrez; César A. Madrid Montoya, and Hans Diederix. 2015. Geological Map of Colombia, 1–212. Servicio Geológico Colombiano. Accessed 2019-10-29.
Parra, Felipe de la; Andrés Mora; Milton Rueda, and Isaid Quintero. 2015. Temporal and spatial distribution of tectonic events as deduced from reworked palynomorphs in the eastern Northern Andes. AAPG Bulletin 99. 1455–1472. .
Egbue, Obi; James Kellogg; Hector Aguirre, and Carolina Torres. 2014. Evolution of the stress and strain fields in the Eastern Cordillera, Colombia. Journal of Structural Geology 58. 8–21. .
Perico Martínez, Néstor Rafael, and Néstor Rafael Perico Granados. 2014. Caracterización y recurrencia sísmica del Nido de Bucaramanga, 1–19. V Congreso Internacional de Ingeniería Civil, Universidad Santo Tomás Seccional Tunja.
Toro Toro, Luz Mary; Mario Moreno Sánchez, and Arley Gómez Cruz. 2014. Metagabro del Ariari, Plutonismo MORB, Cordillera Oriental de Colombia. Boletín de Geología 36. 15–24. Accessed 2019-10-26.
Yarce, Jefferson; Gaspar Monsalve; Thorsten W. Becker; Agustín Cardona; Esteban Poveda; Daniel Alvira, and Oswaldo Ordoñez Carmona. 2014. Seismological observations in Northwestern South America: Evidence for two subduction segments, contrasting crustal thicknesses and upper mantle flow. Tectonophysics 637. 57–67. .
Jiménez Díaz, Giovanny. 2013. Relationship between curved thrust belts, rift inversion, oblique convergence and strike-slip faulting - an example of Eastern Cordillera in Colombia (PhD thesis), 1–106. Università di Roma.
Arango Mejía, María Isabel; Gilberto Zapata García, and Uwe Martens. 2012. Caracterización petrográfica, geoquímica y edad de la Sienita Nefelínica de San José del Guaviare. Boletín de Geología 34. 15–26. Accessed 2019-10-26.
Cuéllar Cárdenas, Mario Andrés; Julián Andrés López Isaza; Jairo Alonso Osorio Naranjo, and Edgar Joaquín Carrillo Lombana. 2012. Análisis estructural del segmento Bucaramanga del Sistema de Fallas de Bucaramanga (SFB) entre los municipios de Pailitas y Curumaní, Cesar - Colombia. Boletín de Geología, Universidad Industrial de Santander 34. 73–101. Accessed 2017-06-20.
Sánchez, Javier; Brian K. Horton; Eliseo Tesón; Andrés Mora; Richard A. Ketcham, and Daniel F. Stockli. 2012. Kinematic evolution of Andean fold-thrust structures along the boundary between the Eastern Cordillera and Middle Magdalena Valley basin, Colombia. Tectonics 31. 1–24. Accessed 2017-06-20.
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Barrero, Dario; Andrés Pardo; Carlos A. Vargas, and Juan F. Martínez. 2007. Colombian Sedimentary Basins: Nomenclature, Boundaries and Petroleum Geology, a New Proposal, 1–92. ANH.
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Maps

González, Humberto. 2001. Mapa Geológico del Departamento de Antioquia - 1:400,000 - Memoria explicativa, 1–120. INGEOMINAS.
Montoya Arenas, Diana María, and Germán Alfonso Reyes Torres. 2005. Geología de la Sabana de Bogotá, 1–104. INGEOMINAS.
Royero Gutiérrez, Jose María, and Jairo Clavijo Torres. 2000. Mapa geológico generalizado del Departamento de Bolívar - 1:400,000 - Memoria explicativa, 1–99. INGEOMINAS. Accessed 2017-08-31.
Rodríguez Parra, Antonio José, and Orlando Solano Silva. 2000. Mapa Geológico del Departamento de Boyacá - 1:250,000 - Memoria explicativa, 1–120. INGEOMINAS. Accessed 2019-03-10.
Acosta, Jorge E., and Carlos E. Ulloa. 2002. Mapa geológico del Departamento de Cundinamarca 1:250,000 - Memoria Explicativa, 1–108. INGEOMINAS.
Rodríguez, Gabriel, and Ana Cristina Londoño. 2002. Mapa geológico del Departamento de La Guajira - 1:250,000, 1–259. INGEOMINAS. Accessed 2017-08-08.
Royero Gutiérrez, José María, and Jairo Clavijo. 2001. Mapa geológico del Departamento de Santander 1:400,000 - Memoria Explicativa, 1–92. INGEOMINAS.

Acosta Garay, Jorge, and Carlos E. Ulloa Melo. 2001. Geología de la Plancha 208 Villeta - 1:100,000, 1–84. INGEOMINAS. Accessed 2017-03-16.
Terraza, Roberto; Diana Montoya; Germán Reyes; Giovanni Moreno; Jaime Fúquen; Eliana Torres Jaimes; Myriam López Cardona; Álvaro Nivia Guevara, and Fernando Etayo Serna. 2013. Geología de la Plancha 229 - Gachalá - 1:100,000, 1–296. Servicio Geológico Colombiano. Accessed 2017-08-04.
Patiño, Alejandro; Jaime Fuquen; Julián Ramos; Andrea Pedraza; Leonardo Ceballos; Lyda Pinzón; Yadira Jerónimo; Leidy Álvarez, and Andrea Torres. 2011. Cartografía geológica de la Plancha 247 - Cáqueza - 1:100,000. INGEOMINAS. Accessed 2017-08-04.
Guerrero Uscátegui, Alberto Lobo. 1992. Geología e Hidrogeología de Santafé de Bogotá y su Sabana, 1–20. Sociedad Colombiana de Ingenieros.

Orrego, Abigail; Luis León; Luis Eduardo Padilla; Álvaro Pablo Acevedo, and Nelson Marulanda. 1999. Plancha 364 - Timbío - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.
Marquínez, Germán; Yohana Rodríguez; Roberto Terraza, and Mario Martínez. 2003. Plancha 365 - Coconuco - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.
Orrego, Abigail; Gabriel Paris; Diego Ibañez, and Edgar Vásquez. 1999. Plancha 387 - Bolívar - 1:100,000, 1. INGEOMINAS. Accessed 2018-06-01.
Murcia L., Armando, and Hector Cepeda V. 1991. Plancha 410 - La Unión - 1:100,000, 1. INGEOMINAS. Accessed 2018-06-01.
Núñez, Alberto, and Jorge Gómez. 2002. Plancha 411 - La Cruz - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.
Murcia L., Armando, and Hector Cepeda V. 1991. Plancha 429 - Pasto - 1:100,000, 1. INGEOMINAS. Accessed 2018-06-01.
Núñez, Alberto, and Jorge Gómez. 2002. Plancha 430 - Mocoa - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.