Erosion and regional exhumation of an Early Cretaceous subduction/accretion complex in the Northern Andes

Avellaneda-Jiménez, D.S.; Cardona, A.; Valencia, Víctor A.; Barbosa, Johildo Salomão Figueirêdo; Jaramillo, J. S.; Monsalve, Gaspar; Ramirez-Hoyos, L.

doi:10.1080/00206814.2019.1596042

Cited by 17 publications

(10 citation statements)

References 71 publications

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“…The preserved sedimentary record within the Cordillera is scarce but includes Upper Cretaceous marine strata (e.g., Sarmiento‐Rojas, 2019), and minor continental Upper Cretaceous and Neogene deposits located on its western flank (Lara et al., 2018; Pardo‐Trujillo et al., 2002). These sequences overlie Lower to mid‐Cretaceous back‐arc basin deposits (Avellaneda‐Jiménez et al., 2020; Zapata et al., 2019).…”

Section: Geologic Backgroundmentioning

confidence: 99%

How Much Did the Colombian Andes Rise by the Collision of the Caribbean Oceanic Plateau?

León

Monsalve

Bustamante

2021

Geophysical Research Letters

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The quantification of topographic growth at convergent margins is of primary importance to assessing the linkages between tectonic processes and landscape evolution. Traditionally, this task has relied on the applicability of conventional paleobotanical and isotopic methods to estimate paleoelevations, which is not always straightforward. Here, we use recent calibrations based on trace elements of arc‐related magmatic rocks to estimate crustal thickening and surface uplift of the northern Colombian Andes during the early Andean orogeny at ca. 70‐60 Ma. Increased Sr/Y and (La/Yb)N ratios of arc‐related intrusives suggest a ∼20 km crustal thickening that was probably accompanied by an isostatically compensated topographic uplift of up to ∼2 km along the proto‐Central Cordillera and the Santa Marta Range. This kilometer‐scale uplift was coeval with a regional shift from marine to continental deposition in foreland basins and was triggered by the collision of the Caribbean oceanic plateau.

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Section: Geologic Backgroundmentioning

confidence: 99%

How Much Did the Colombian Andes Rise by the Collision of the Caribbean Oceanic Plateau?

León

Monsalve

Bustamante

2021

Geophysical Research Letters

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“…The collision of the Choco and North Andean blocks in Early Miocene allowed for biotic dispersal between the two continental masses, and also triggered important geological changes in South America: increased Andean orogenesis and propagation of the Llanos basin (Farris et al, 2011;Mora et al, 2020). While exhumation of the Andean metamorphic rocks had likely began in the Late Cretaceous (before the Andean orogenesis, around ~100 mya; Avellaneda-Jiménez et al, 2020), the uplift of its northernmost portions (e.g., the Central and Western Cordilleras) significantly accelerated in the Miocene, around 23 mya (Hoorn et al 2010;Chen, Wu & Suppe, 2019). As a consequence, diversification increased for several plant and animal taxa and the Dipsadinae were no exception.…”

Section: The Distinct Processes Shaping the Diversity Of Dipsadines A...mentioning

confidence: 99%

There and back again: when and how the world’s richest snake family (Dipsadidae) dispersed and speciated across the Neotropical region

Serrano

Pontes-Nogueira

Sawaya

et al. 2023

Preprint

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Aim: The widespread megadiverse Neotropical snake family Dipsadidae occurs in a large range of diverse habitats. Thus it is an excellent model to understand the diversification of Neotropical biota. Herein, by generating a time-calibrated species-level phylogeny, we investigate the origin and historical biogeography of Dipsadidae and test if its two main Neotropical subfamilies, Xenodontinae and Dipsadinae, have different geographical origins. Location: Neotropical region. Taxon: Dipsadidae (Serpentes). Methods: We generated a new bayesian time-calibrated phylogeny including sequences from six genes for 344 species, including 287 species of Dipsadidae. We subsequently estimated ancestral areas of distribution by comparing models in BioGeoBEARS: DEC (subset sympatry, narrow vicariance), DIVALIKE (narrow and wide vicariance), BAYAREALIKE (no vicariance and widespread sympatry), also testing jump dispersal. Results: The best models show that Dipsadidae likely originated approximately 50 million years ago (mya) in Asia. Dispersal was a fundamental process in its historical biogeography. The DEC model with jump dispersal indicated that this family underwent a range extension from Asia and posterior vicariance of North and Central America ancestors. Both Xenodontinae and Dipsadinae originated in Central America and dispersed to South America during Middle Eocene, but did so to different regions (cis and trans-Andean South America, respectively). Xenodontinae entered cis-Andean South America around 40 mya and jump dispersed to the West Indies around 35 mya, while Dipsadinae entered trans-Andean South America multiple times 20 - 25 mya. Main conclusions: Our results show that Dipsadidae has an Asian origin and that the two main Neotropical subfamilies originated in Central America, later dispersing to South America in different time periods. The current biogeographical patterns of the family Dipsadidae, the most species-rich snake family in the world, have likely been shaped by complex evolutionary and geological processes such as Eocene land bridges, Andean uplift and the formation of the Panama isthmus.

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“…El registro sedimentario Cretácico incluye una serie de secuencias clásticas transicionales y marinas del Cretácico Inferior (e.g. Sedimentitas de San Luis, Berlín, Amalfi, Formaciones Abejorral y Valle Alto), las cuales en conjunto con algunos remanentes de rocas volcánicas tales como el Complejo Quebradagrande y la Formación San Pablo se encuentran expuestas de forma discontinua en la zona axial y en ambos flancos de la Cordillera (Figura 1), y estarían caracterizadas por un metamorfismo de muy bajo grado, frecuentemente relacionado con zonas de falla asociadas a una deformación del Cretácico Superior (Nivia et al, 2006;Villagómez et al, 2011;Rodríguez y Cetina, 2016;Jaramillo et al, 2017; Rodríguez-García y Celada-Arango, 2018;Avellaneda-Jiménez et al, 2020;Cardona et al, 2020;. Una serie de cuerpos ígneos plutónicos de composición granodiorítica a tonalítica con afinidad de arco magmático y edades entre 98 Ma y 58 Ma, dentro de los que se destaca el Batolito Antioqueño, intruyen el basamento más antiguo y las unidades Cretácicas ( Ordóñez-Carmona y Pimentel, 2001;Ibáñez-Mejía et al, 2007;Villagómez et al, 2011;Duque-Trujillo et al, 2019;Leal-Mejía et al, 2019;Cardona et al, 2020;Figura 1).…”

Section: La Cordillera Central Y El Segmento Occidental Delunclassified

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

Valencia-Gómez¹,

Cardona²,

Bayona³

et al. 2020

Bol. Geol.

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El registro clástico Maastrichtiano de la Formación Cimarrona en el flanco occidental de la Cordillera Oriental colombiana documenta la erosión de una topografía generada al occidente y asociada con el inicio de la orogenia Andina durante el Cretácico Superior-Paleoceno, la cual suministró los sedimentos que se acumularon en ambientes continentales a transicionales. Los análisis de procedencia sedimentaria (conteo de clastos de conglomerados, petrografía, minerales pesados y geocronología detrítica U-Pb) en conjunto con los datos de paleocorrientes previamente publicados permiten reconstruir la historia del área fuente al occidente. Los circones detríticos con edades principalmente del Cretácico Superior, incluyendo un máximo de acumulación de ~66 Ma, así como edades más limitadas del Pérmico (276 Ma), Triásico (246 Ma) y Jurásico (153 Ma), sugieren que la sedimentación estuvo asociada a un vulcanismo contemporáneo y a la erosión de rocas sedimentarias y cristalinas más antiguas. El alto contenido de cuarzo de las areniscas, junto con la asociación de líticos sugiere que el área de aporte incluía rocas sedimentarias clásticas, rocas metamórficas de bajo a muy bajo grado y rocas volcánicas félsicas a intermedias. El área de aporte consistía en coberturas volcano-sedimentarias Cretácicas suprayaciendo rocas del Jurásico y Permo-Triásico afín con los dominios litológicos y geocronológicos de la Cordillera Central. El carácter discontinuo del registro clástico grueso de la Formación Cimarrona sugiere que las áreas fuente eran bloques levantados discontinuos con valles intermedios, que probablemente se extendían hacia el este y ahora están enterrados debajo del relleno de la cuenca del Valle del Magdalena. El segmento de la Cordillera Central más compatible con estas características estaría al norte de la cuenca, apoyando la hipótesis de desplazamiento de rumbo post-Maastrichtiano de las áreas fuente al occidente.

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Erosion and regional exhumation of an Early Cretaceous subduction/accretion complex in the Northern Andes

Cited by 17 publications

References 71 publications

How Much Did the Colombian Andes Rise by the Collision of the Caribbean Oceanic Plateau?

How Much Did the Colombian Andes Rise by the Collision of the Caribbean Oceanic Plateau?

There and back again: when and how the world’s richest snake family (Dipsadidae) dispersed and speciated across the Neotropical region

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

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