CT&F Ciencia, Tecnología y Futuro ISSN: 0122-5383 [email protected] ECOPETROL S.A. Colombia Silva-Arias, Alejandro; Páez-Acuña, Liliana-Andrea; Rincón-Martínez, Daniel; Tamara- Guevara, Javier-Alfonso; Gomez-Gutierrez, Pedro-David; López-Ramos, Eduardo; Restrepo-Acevedo, Sandra-Milena; Mantilla-Figueroa, Luis-Carlos; Valencia, Victor BASEMENT CHARACTERISTICS IN THE LOWER MAGDALENA VALLEY AND THE SINÚ AND SAN JACINTO FOLD BELTS: EVIDENCE OF A LATE CRETACEOUS MAGMATIC ARC AT THE SOUTH OF THE COLOMBIAN CARIBBEAN CT&F Ciencia, Tecnología y Futuro, vol. 6, núm. 4, diciembre, 2016, pp. 5-35 ECOPETROL S.A. Bucaramanga, Colombia Available in: http://www.redalyc.org/articulo.oa?id=46550993001 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative CT&FBASEMENT - Ciencia, CHARACTERISTICSTecnología y Futuro - INVol. THE 6 Num. LOWER 4 Dec. MAGDALENA 2016 ag. VALLEY - 6 AND THE SINÚ AND SAN JACINTO FOLD BELTS: EVIDENCE OF A LATE CRETACEOUS MAGMATIC ARC AT THE SOUTH OF THE COLOMBIAN CARIBBEAN ISSN rint 0122- ISSN Online 22-41 Journal of oil, gas and alternative energy sources BASEMENT CHARACTERISTICS IN THE LOWER MAGDALENA VALLEY AND THE SINÚ AND SAN JACINTO FOLD BELTS: EVIDENCE OF A LATE CRETACEOUS MAGMATIC ARC AT THE SOUTH OF THE COLOMBIAN CARIBBEAN CARACTERÍSTICAS DEL BASAMENTO EN EL VALLE INFERIOR DEL MAGDALENA Y CINTURONES PLEGADOS DE SINÚ Y SAN JACINTO: EVIDENCIAS DE UN ARCO MAGMÁTICO DEL CRETÁCICO TARDÍO EN EL CARIBE SUR COLOMBIANO CARACTERÍSTICAS DO SUBSOLO NO VALE INFERIOR DO MAGDALENA E NAS FAIXAS DE DOBRAMENTO DE SINÚ E SAN JACINTO: EVIDÊNCIA DE UM ARCO MAGMÁTICO DO CRETÁCICO TARDIO NO SUL DO CARIBE COLOMBIANO Alejandro Silva-Arias 1*; Liliana-Andrea Páez-Acuña 2; Daniel Rincón-Martínez 1; Javier-Alfonso Tamara-Guevara 3; Pedro-David Gomez-Gutierrez 1; Eduardo López-Ramos 4; Sandra-Milena Restrepo-Acevedo 1; Luis-Carlos Mantilla-Figueroa 2 and Victor Valencia 5 1 ECOETROL S.A., Intituto Colomiano el etrleo IC, Colomia 2 Uni eria Inutrial e Santaner, Bucaramanga, Santaner, Colomia, Ecuela e Geología. Royal Hollo ay. Uni erity o Lonon, Englan. 4 ECOETROL S.A. Gerencia e E loracin Oore, Colomia. Scool o Eart an En ironmental Science, Waington State Uni erity, ullman, USA. e-mail: aniel.rinconeco etrol.com.co (Received: Dec. 22, 2015; Accepted: Dec 09, 2016) ABSTRACT e onet o uuction in te Cariean late uner te Sout American late allo e te e elo - ment o an Acti e Continental Margin te age o onet, te mecanim an te late in ol e are a Ticuion to ic, e ecially at te Colomian Sout Cariean Margin, ue to te lac o geological inormation relate to te aement. Ti article integrate etrogra ic, geocemical analye an U ating o aement am le, in aition to te incluion o ulie magnetic anomalie ma rom te Nort o Colomia, in orer to generate a com oitional itriution ma o te aement an etermine te reence o a magmatic arc uner te eiment o te Lo er Magalena Valley LMV, ic u ort te eitence o a Late Cretaceou acti e continental margin re reente y a magmatic arc, calle Magmatic Arc o Magangu. Dating o te arc yiel a Late Cretaceou Age 4-4 Myr, an etrogra ic an geocemical e ience ugget it i com rie o igneou oie o elic to intermeiate com oition, ic intrue te LMV continental crut, originate in a uuction etting. Te origin o te LMV continental crut eem to e relate to te continent-continent colliion conoliation o angaea uring te ermian 00 Ma ago, an to te ot-Alleganian etenion e ent o Triaic age 22 Ma ago. Keywords: Magmatic Arc, U-Pb geochronology, subduction, Caribbean, South America. How to cite: Sil a-Aria, A., e-Acua, L. A., Rincn-Martíne, D., Tamara-Gue ara, J. A., Gome-Gutierre, . D., L e-Ramo, E., Retre o-Ace eo, S. M., Mantilla-Figueroa, L. C., & Valencia, V. 2016. Baement caracteritic in te Lo er Magalena Valley an te Sin an San Jacinto Fol Belt: E ience o a Late Cretaceou Magmatic Arc at te Sout o te Colomian Cariean. CT&F - Ciencia, Tecnología y Futuro , 64, -6. *To whom correspondence should be addressed CT&F - Ciencia, Tecnología y Futuro - Vol. 6 Num. 4 Dec. 2016 5 ALEJANDRO SILVA-ARIAS et al. RESUMEN l inicio e la uuccin e la laca Carie ao la laca Suramericana ermiti el earrollo e una Margen Continental Actia la ea e inicio, el mecanimo y la laca inolucraa on tema e Eeate en eecial en el Margen Carie Sur colomiano, eio a la alta e in ormacin geolgica el aamento. En ete artículo e integran anlii etrogr ico, geo uímico y atacione U e muetra el aamento, aem e la incluin e maa e anomalía magntica ulicao el Norte e Colomia, ara generar un maa e itriucin comoicional el aamento y eterminar la eitencia e un arco magmtico ao lo eimento el Valle In erior el Magalena VIM ue aoyan la eitencia e una Margen Continental Actia ee el Cretcico Tarío. La eitencia e ete arco, enominao como Arco Magmtico e Magangu e ea Cretcico Tarío 4-4 Ma, et comueto or cuero ígneo e comoicin lica a intermeia ue intruyen la corte a continental el VIM, originao en un amiente e uuccin. El origen e la corte a continental el VIM arece etar ligaa a la coliin continente- continente conoliacin e angea urante el rmico 00Ma, y al eento e etenin ot-Alleganiano e ea Triica 22Ma. Palabras clave: Arco Magmtico, geocronología U-, uuccin, Carie, Sur Amrica. RESUMO início a uuco a laca Carie o a laca Sul-americana oiilitou o eenolimento e uma Margem Continental Atia a iae e início, o mecanimo e a laca enolia a em arte Oo mito e icuo no ue tange eecialmente Margem Carie Sul colomiana, eio alta e in ormao geolgica o uolo. Ete artigo integra anlie etrogr ico, geo uímico e atae U e amotra o uolo, incluino tamm maa e anomalia magntica ulicao o Norte a Colmia, iano a criao e um maa e itriuio comoicional o uolo e a eterminao a eitncia e um arco magmtico o o eimento o Vale In erior o Magalena VIM ue uortam a eitncia e uma Margem Continental Atia ee o Cretcico Tario. A eitncia ete arco, enominao como Arco Magmtico e Magangu e iae Cretcico Tario 4-4 Ma, comota or coro ígneo e comoio lica e intermia ue intruem a crota continental o VIM, originao em um amiente e uuco. A origem a crota continental o VIM arece etar relacionaa com a colio continente-continente conoliao e angeia urante o rmico 00Ma, e com o eento e eteno o-alleganiano a era Triica 22Ma. Palavras-chave: Arco Magmtico, geocronologia U-, uuco, Carie, Amrica o Sul. 6 CT&F - Ciencia, Tecnología y Futuro - Vol. 6 Num. 4 Dec. 2016 BASEMENT CHARACTERISTICS IN THE LOWER MAGDALENA VALLEY AND THE SINÚ AND SAN JACINTO FOLD BELTS: EVIDENCE OF A LATE CRETACEOUS MAGMATIC ARC AT THE SOUTH OF THE COLOMBIAN CARIBBEAN 1. INTRODUCTION 1988). However, some researchers treat these Great Arc components as separate entities, given that they appear to have different tectonic histories and have started as The tectonic evolution of NW South America, individual arc systems at different times during the between the Permian and Late Cretaceous-Paleogene, Cretaceous through Paleogene (E.g Wright & Wyld was related to the complex interaction of South 2011; Xie & Mann, 2014). American, Caribbean (Plateau and proto-Caribbean) and Farallones plates. The Permian recorded the Pangaea consolidation and the Allaganian Mountains generation Finally, and also valid for both, the autochtonous and (Condie & Sloan, 1997; Yañez, Ruiz, Patchett, Ortega- the allochtonous models during the Cenozoic the region Gutierrez, & Gehrels, 1991). During the Triassic, the is characterized by accretionary prisms occurence, post-Alleganian event marked the rifting onset between which NE oriented faults activation and small oceanic Gondwana-Laurentia. Meanwhile, for the Jurassic- crust sections attached to the continental margin of Late Cretaceous intra-continental rift (E.g. Cediel, Ecuador, Colombia and Venezuela, suggest a behavior Shaw, & Caceres, 2003 Pindell & Kennan, 2009) or similar to an active margin (E.g. Santamaría & Schubert, extensional subduction scenarios (E.g. Aspden et al ., 1974; Duque-Caro, 1984; Taboada et al ., 2000; Vallejo 1987; Villagómez et al ., 2011; Cochrane et al ., 2014) et al ., 2006; Cerón, Kellogg, & Ojeda, 2007; Mantilla- have been set out. Two tectonic models explain the Pimiento, 2007; Toro, Gómez, & Moreno, 2014). geological evolution in the area after these events. First, the allochthone-related models that suggest a At the north of Colombia (Figure 1), evidence of an Caribbean plate origin (Plateau) linked to the Pacic active continental margin during the Late Cretaceous, Plate geological history (E.g. Pindell et al ., 1988; have been reported in magmatic bodies emplaced at Pindell, 1990; Mann et al ., 2002; Pindell & Kennan, the North of the Cordillera Central (CC) (E.g. Ordóñez 2009; Escalona & Mann; 2011). In such models, the NW & Pimentel, 2001a, b; Restrepo-Moreno et al ., 2007a, South America is considered a passive margin between b; Ordoñez, Pimentel, & Laux, 2008; Villagómez et 120 and 84 Myr; and for the Late Cretaceous suggest al ., 2011), and in the Guajira Peninsula (PG; Cediel an arc-continent collision between the Caribbean plate et al ., 2003; Weber et al ., 2009, 2011). However, in (Plateau) and South America. This collision must have other continental margin areas, such as the Lower given rise to oceanic crust subduction (Pacic-originated Magdalena Valley (LMV), there are no reports of Plateau) occurring since the Campanian (approximately igneous activity for the same period and therefore; it has 72 Myr ago; Cediel et al ., 2003).