Análisis de procedencia del registro sin-orogénico Maastrichtiano de la Formación Cimarrona, flanco occidental de la Cordillera Oriental colombiana

Valencia-Gómez, Juan Camilo; Cardona, A.; Bayona, Germán; Valencia, Víctor A.; Zapata, S.

doi:10.18273/revbol.v42n3-2020008

Cited by 9 publications

(5 citation statements)

References 102 publications

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“…The eastward orogenic advance continued at this time. Provenance analysis (e.g., Nie et al, 2010;Lamus et al, 2013) demonstrates that the uplifting Central Cordillera started to be a sediment source by this time (Villagómez and Spikings, 2013;Valencia-Gómez et al, 2020). In addition, the basin records a change from the carbonatic to siliciclastic deposition that Bayona (2018) reported as xenoconformity.…”

Section: Early Maastrichtianmentioning

confidence: 99%

“…At that time, most of the basin was under marine deposition. By the early Maastrichtian, the orogenic advance resulted in the Central Cordillera acting as a sedimentary source for the Upper and Middle Magdalena Valley(Moreno et al, 2011;Villagómez and Spikings, 2013;Valencia-Gómez et al, 2020) (Figure2A).Paleogeographic maps from Bayona (2018), Bayona et al (2013), Cardona et al (2018), Reyes-Harker et al (2015), and Sarmiento (2001) indicate regional progradation of the shoreline from the latest Campanian to Maastrichtian-Paleocene. Indeed, the Paleogene succession suggests fluvial deposition with no marine influence.…”

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confidence: 98%

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First-Order Stratigraphic Boundaries of the Late Cretaceous–Paleogene Retroarc Foreland Basin in Colombia

Carvajal-Torres

Catuneanu

Mora³

et al. 2022

Front. Earth Sci.

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The present-day Magdalena Valley, Eastern Cordillera, and Llanos Basin were part of a regional multiphase basin that started as an extensional basin in the Jurassic. Then, it was transformed into a retroarc foreland basin in the Late Cretaceous and subsequently separated into a hinterland and a foreland basin during the late Eocene. We incorporated new data from the Llanos Basin and Eastern Cordillera and chronostratigraphically correlated it with the adjacent basins. Their correlation contributed to establishing the stratigraphic boundaries formed during the first-order changes that marked the beginning and the end of the lifespan of the retroarc foreland basin. In the initial stage, the lateral extent along the dip of the significant depocenter that extended from the Magdalena Valley to the westernmost Llanos Basin was approximately 300–470 km. At the same time, the western flank of the Eastern Cordillera and most of the Llanos Basin were uplifting. The contact between the retrograding marine facies of the Upper Lidita, Buscavidas, Umir, Guadalupe, and Palmichal units marks a late Campanian maximum regressive surface formed during the initial exhumation of the orogen, the Central Cordillera. Therefore, it represents a first-order stratigraphic surface. This surface does not extend across the whole basin. In the uplifting areas, subaerial unconformities truncate the middle Campanian rocks. Their combination represents the lower first-order boundary of the sequence, and their diachroneity is the product of the northward migration of the orogen. The Teruel, Hoyon, Bogota, Cacho, Socha, Barco, and Cuervos formations are truncated by a regional subaerial unconformity. It was formed during orogenic unloading that marks the termination of the foreland basin in the Eocene. As it marks another first-order change, it is the upper boundary of the first-order sequence.

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Section: Early Maastrichtianmentioning

confidence: 99%

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confidence: 98%

First-Order Stratigraphic Boundaries of the Late Cretaceous–Paleogene Retroarc Foreland Basin in Colombia

Carvajal-Torres

Catuneanu

Mora³

et al. 2022

Front. Earth Sci.

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“…Paleogene to Miocene foreland sedimentary units preserved in the Eastern Cordillera are characterized by the appearance of Permian to Eocene zircons derived from the Central Cordillera (Horton et al, 2020 and references therein). North of the Eastern Cordillera, the Santander Massif is characterized by Paleozoic plutonic and metasedimentary rocks intruded by Jurassic plutons (Bayona et al, 2019;van der Lelij et al, 2016). The Garzón and Quetame massifs are composed of Proterozoic (1500-900 Ma) metamorphic rocks intruded by Ordovician plutons (ca.…”

Section: Northern Andesmentioning

confidence: 99%

“…The reconstruction of past drainage networks requires a correlation between sedimentary provenance signals and possible source areas; in this section, we describe the most important geochronological provinces in the Northern Andes. The Western, Central and Eastern Cordilleras and the intermontane Cauca and Magdalena valleys are characterized by geological units formed in contrasting tectonic settings, which have facilitated the reconstruction of past source areas in the Northern Andes (e.g., Bayona et al, 2020;Horton et al, 2015Horton et al, , 2020Nie et al, 2012;Reyes-Harker et al, 2015;Valencia-Gómez et al, 2020;Zapata, Cardona, et al, 2019).…”

Section: Northern Andesmentioning

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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“…In addition, the latest Cretaceous was characterized by a global sea-level fall, which has been associated with the possible occurrence of intermittent ice sheets at high latitudes (Hardenbol et al , 1998; Kominz et al , 2008; Huber et al , 2018). Consequently, Campanian–Maastrichtian sedimentary successions of northern South America record a myriad of tectonic (basin deformation, local uplifts), stratigraphic (xenoconformities, diachronism of units), and sedimentary (abrupt lateral facies shifts, retrogradational stacking) features that make their depositional evolution highly complex (Ayala-Calvo et al , 2009; Bayona et al , 2011, 2020; Sarmiento et al , 2015; Montaño et al , 2016; Sarmiento-Rojas, 2019; Terraza, 2019; Valencia-Gómez et al , 2020; Gramal-Aguilar et al , 2021).…”

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confidence: 99%

Maastrichtian Microfossils of the Shallow Marine Umir Formation, Northeastern Colombia

et al. 2023

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During the Late Cretaceous, northern South America was characterized by broad epicontinental seas, with variable surface productivity and changing bottom-water oxygenation. Global sea-level fluctuations and local tectonic shifts caused their disappearance in the latest Cretaceous. We present an integrated micropaleontological and geochemical study of a section comprising the Umir Formation and its lower stratigraphic contact with the La Luna Formation, in the Middle Magdalena Valley, northeastern Colombia. Foraminiferal assemblages were moderately diverse and mainly dominated by benthic taxa, characterizing the biozones Siphogenerinoides bramlettei and Ammobaculites colombiana (Maastrichtian). Planktonic foraminiferal assemblages were less diversified, being species assigned to Heterohelicidae and scarce keeled forms (Globotruncana spp.) the most recurrent taxa. Ostracod recovery was very scarce, and we could only identify the genus Actinocythereis. In contrast, calcareous nannofossil assemblages were moderately diversified along the section, and composed of typical Late Cretaceous low-latitude taxa such as Micula staurophora, Cribrosphaerella ehrenbergii, Gartnerago segmentatum. The identified microfossils indicate a transition from middle-inner shelf conditions, with moderately oxygenated bottom waters within the La Luna Formation, to a shallower marine setting within the Umir Formation. This interpretation is supported by Sr/Ba and log(Fe/Ca) ratios measured in bulk sediment, which indicate increased continental runoff and terrigenous input in the upper part of the section. Moreover, a significant biotic turnover was identified at the base of the section, suggesting the presence of a xenoconformity at the La Luna-Umir contact, which has been previously described and proposed as a regional stratigraphic feature.

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Análisis de procedencia del registro sin-orogénico Maastrichtiano de la Formación Cimarrona, flanco occidental de la Cordillera Oriental colombiana

Cited by 9 publications

References 102 publications

First-Order Stratigraphic Boundaries of the Late Cretaceous–Paleogene Retroarc Foreland Basin in Colombia

First-Order Stratigraphic Boundaries of the Late Cretaceous–Paleogene Retroarc Foreland Basin in Colombia

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

Maastrichtian Microfossils of the Shallow Marine Umir Formation, Northeastern Colombia

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