Catálogo de las unidades litoestratigráficas de Colombia: Valle Superior del Magdalena

Rodríguez, Gabriel; Arango, María Isabel; Zapata, Gilberto; Bermúdez, José Gilberto

doi:10.32685/9789585313194

Cited by 5 publications

(7 citation statements)

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“…Compiled petrography and zircon data from the Northern Andes Miocene strata and the basements of the Central and Eastern Cordilleras, black squares contain the references of the compiled data while white stars denoting the data presented in this contribution (R1: Anderson et al, 2016; R2: Blanco‐Quintero et al, 2014; R3: Bustamante et al, 2016, Bustamante et al, 2010; R4: Caballero et al, 2013; R5: Cochrane et al, 2014; R6: Echeverri et al, 2015; R7: Horton et al, 2010; R8: Lara et al, 2018; R9: Montes et al, 2021; R10: Muñoz Granados, 2019; R11: Naranjo et al, 2018; R12: Rodríguez et al, 2016; R13: Villamizar‐Escalante et al, 2021; R14: Zapata, Cardona, et al, 2019). (a) sandstone classification diagram after Folk (1980) Qt: total quartz, F: total feldspar, L: total lithics, Lv: volcanic lithics, Ls: sedimentary lithics and Lm: metamorphic lithics.…”

Section: Discussionmentioning

confidence: 99%

Drainage and sedimentary response of the Northern Andes and the Pebas system to Miocene strike‐slip tectonics: A source to sink study of the Magdalena Basin

et al. 2023

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Miocene strike‐slip tectonics was responsible for creating and closing short‐lived (ca. 6 Ma) passages and the emergence of isolated topography in the Northern Andes. These geological events likely influenced the migration and/or isolation of biological populations. To better understand the paleogeography of the Miocene hinterland and foreland regions in the Northern Andes, we conducted a source‐to‐sink approach in the Magdalena Basin. This basin is located between the Central and Eastern Cordilleras of Colombia and contains an ample Miocene record, which includes Lower Miocene fine‐grained strata and Middle Miocene to Pliocene coarsening‐up strata. Our study presents a new data set that includes detrital U–Pb zircon ages (15 samples), sandstone petrography (45 samples) and low‐temperature thermochronology from the Southern Central Cordillera (19 dates); which together with previously published data were used to construct a paleogeographical model of the Miocene hinterland and foreland regions in the Northern Andes. The evolution of the Magdalena Basin during the Miocene was characterized by playa and permanent lake systems at ca. 17.5 Ma, which may be related to a marine incursion into NW South America and western Amazonia. The appearance of Eocene to Miocene volcanic sources in the Honda Group after ca. 16 Ma suggests the development of fluvial passages, which connected the Pacific with the western Amazonia and Caribbean regions. These passages were synchronous with a time of Miocene exhumation and topographic growth (ca. 16 to 10 Ma) in the Central Cordillera and the transition from lacustrine to fluvial deposition in the Magdalena Basin. Middle to Late Miocene strike‐slip deformation promoted by oblique plate convergence and the oblique collision of the Panamá‐Chocó Block likely explains the synchronous along‐strike fragmentation and exhumation in the Central Cordillera.

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Section: Discussionmentioning

confidence: 99%

Drainage and sedimentary response of the Northern Andes and the Pebas system to Miocene strike‐slip tectonics: A source to sink study of the Magdalena Basin

et al. 2023

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“…La redefinición del batolito de Ibagué se realiza a partir de nueva información cartográfica soportada en observaciones de campo y en nuevos datos de geocronología, química de roca total y petrografia, que permite separar nuevos plutones (gabros de Los Guayabos y Belalcázar de edad carbonífera), nuevos afloramientos de los granitos de La Plata y Ortega (de edad pérmica), y de la Cuarzomonzodiorita de Páez (de edad jurásico temprano), mejorando la información cartográfica publicada para algunos de estos plutones más antiguos (Rodríguez-García et al, 2015, 2017b, 2019, 2020aZapata et al, 2015).…”

Section: Discussionunclassified

“…Trabajos más recientes del batolito de Ibagué han aportado al conocimiento datos de petrografía, química de roca total e isotópicos, química mineral y geocronología U-Pb (Leal-Mejía, 2011;Bustamante et al, 2016;Rodríguez-García et al, 2017a, 2020aChavarría et al, 2021). Además algunos trabajos han hecho nueva cartografía que ha permitido separar unidades anteriormente consideradas como parte de esta unidad (Rodríguez-García et al, 2015;Zapata et al, 2015;Rodríguez-García et al, 2017b, 2019, 2020a.…”

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“…44 Num. 3 los gabros de Belalcázar y Los Guayabos de edad carbonífera (esta publicación), los granitos de Ortega y La Plata de edad pérmica (Rodríguez-García et al, 2017b, 2019, y la Cuarzomonzodiorita de Páez de edad Jurásico temprano a medio (Rodríguez-García et al, 2015;Zapata et al, 2015). Adicionalmente, se integra la información del plutón redefinido y se discuten las diferencias con la Metatonalita de Anzoátegui y la Tonalita de Ibagué que afloran al norte de la falla de Ibagué.…”

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Redefinición, correlación e implicaciones geotectónicas del batolito de Ibagué, Colombia

et al. 2022

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Nuevos datos de campo, petrografía, geoquímica y geocronología U-Pb en circón permiten redefinir el batolito de Ibagué y proponer nuevas unidades. El batolito de Ibagué, al norte de la Falla de Ibagué, ha sido dividido en la Metatonalita de Anzoátegui (∼194,7 km2) y la Tonalita de Ibagué (∼278 km2). Al sur de la falla de Ibagué conserva el nombre de batolito de Ibagué con una extensión de ~3200 km2, debido a la escisión de los gabros de Belalcázar y Los Guayabos de edad Carbonífera, los granitos de Ortega y La Plata de edad Pérmica, y la Cuarzomonzodiorita de Páez de edad Jurásico temprano. La Metatonalita de Anzoátegui y la Tonalita de Ibagué se componen de metatonalitas, tonalitas y granodioritas calco-alcalinas metaluminosas, con edades U-Pb para la Metatonalita de Anzoátegui entre 158,2+1,2/–0,4 y 150,17±0,86 Ma y para la Tonalita de Ibagué entre 145,71+0,72/–1,42 Ma y 138,48±0,95 Ma, Jurásico medio a Cretácico inferior. El batolito de Ibagué está constituido por tonalitas, granodioritas y monzogranitos calco-alcalinos a calco-alcalinos de alto K, metaluminosos y peraluminosos, con edades entre 171,5±1,3 y 137,9±1,0 Ma. El batolito de Ibagué, la Metatonalita de Anzoátegui y la Tonalita de Ibagué son granitoides cálcicos de arco, con anomalías negativas de Nb, Ti y P. La posición geotectónica, la composición petrográfica y química, y las edades de cristalización permitieron correlacionar el batolito de Ibagué, La Metatonalita de Anzoátegui y la Tonalita de Ibagué con los batolitos de Segovia y Los Alisales, la Granodiorita de Siapana, el stock de Payandé, y con unidades volcánicas como el Volcánico de La Malena, las Vulcanitas de Segovia y Chaparral. Con esta correlación se separan unidades que estaban asociadas al batolito de Ibagué que afloran en una posición más oriental, definidas como los cinturones de plutones del carbonífero, Pérmico y Jurásico temprano a medio.

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“…Local mafic Cretaceous magmatic intrusions affected the Cretaceous graben systems (Vasquez, Altenberger, Romer, Sudo, & Moreno‐Trujillo, 2010; Figure 2a). Additionally, microdiorite and sienogranite dikes intruded the Santander massif in the Cretaceous (Correa, Rodríguez, Arango, Zapata, & Bermúdez, 2016).…”

Section: Regional Geological Settingmentioning

confidence: 99%

Unravelling the widening of the earliest Andean northern orogen: Maastrichtian to early Eocene intra‐basinal deformation in the northern Eastern Cordillera of Colombia

et al. 2020

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The onset of deformation in the northern Andes is overprinted by subsequent stages of basin deformation, complicating the examination of competing models illustrating potential location of earliest synorogenic basins and uplifts. To establish the width of the earliest northern Andean orogen, we carried out field mapping, palynological dating, sedimentary, stratigraphic and provenance analyses in Campanian to lower Eocene units exposed in the northern Eastern Cordillera of Colombia (Cocuy region) and compare the results with coeval succession in adjacent basins. The onset of deformation is recorded in earliest Maastrichtian time, as terrigenous detritus arrived into the basin marking the end of chemical precipitation and the onset of clastic deposition produced by the uplift of a western source area dominated by shaly Cretaceous rocks. Disconformable contacts within the upper Maastrichtian to middle Palaeocene succession document increasing supply of quartzose sandy detritus from Cretaceous quartzose rocks exposed in eastern source areas. The continued unroofing of both source areas produced a rapid shift in depositional environments from shallow marine in Maastrichtian to fluvial‐lacustrine systems during the Palaeocene‐early Eocene. Supply of immature Jurassic sandstones from nearby western uplifts, together with localized plutonic and volcanic Cretaceous rocks, caused a shift in Palaeocene sandstones composition from quartzarenites to litharenites. Supply of detrital sandy fragments, unstable heavy minerals and Cretaceous to Ordovician detrital zircons, were derived from nearby uplifted blocks and from SW fluvial systems within the synorogenic basin, instead of distal basement rocks. The presence of volcanic rock fragments and 51–59 Ma volcanic zircons constrain magmatism within the basin. The Maastrichtian–Palaeocene sequence studied here documents crustal deformation that correlates with coeval deformation farther south in Ecuador and Peru. Slab flattening of the subducting Caribbean plate produced a wider orogen (>400 km) with a continental magmatic arc and intra‐basinal deformation and magmatism.

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Catálogo de las unidades litoestratigráficas de Colombia: Valle Superior del Magdalena

Cited by 5 publications

References 0 publications

Drainage and sedimentary response of the Northern Andes and the Pebas system to Miocene strike‐slip tectonics: A source to sink study of the Magdalena Basin

Drainage and sedimentary response of the Northern Andes and the Pebas system to Miocene strike‐slip tectonics: A source to sink study of the Magdalena Basin

Redefinición, correlación e implicaciones geotectónicas del batolito de Ibagué, Colombia

Unravelling the widening of the earliest Andean northern orogen: Maastrichtian to early Eocene intra‐basinal deformation in the northern Eastern Cordillera of Colombia

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