2019
DOI: 10.18273/revbol.v41n1-2019001
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Estudio petrográfico y posibles fuentes de los clastos basales de la Formación San Cayetano hacia el sur del Cinturón Plegado de San Jacinto, norte de Colombia

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Cited by 6 publications
(3 citation statements)
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“…According to these authors, the metamorphic (schists and gneisses) and ultramafic lithics within the sandstones analyzed were associated with crystalline massifs adjacent to the SJFB, such as those reported in the basement of the LMV and the Central Cordillera, while the volcanic and plutonic components identified in the SJFB were attributed to a Late Cretaceous, intra-oceanic, volcano-magmatic arc that was accreted to the continental margin during the Paleogene. Similar conclusions were advanced by Silva-Arias et al (2019). Recently, Mora-Bohórquez et al (2017) provided new borehole data from Paleogene sedimentary rocks in the central and northern segments of the SJFB showing identical zircon U-Pb and ε Hf signatures to those reported by Cardona et al (2012), suggesting the existence of crust of oceanic affinity that served as a source of detrital materials to the Paleocene rocks presently exposed in the SJFB.…”
Section: Research Papersupporting
confidence: 70%
“…According to these authors, the metamorphic (schists and gneisses) and ultramafic lithics within the sandstones analyzed were associated with crystalline massifs adjacent to the SJFB, such as those reported in the basement of the LMV and the Central Cordillera, while the volcanic and plutonic components identified in the SJFB were attributed to a Late Cretaceous, intra-oceanic, volcano-magmatic arc that was accreted to the continental margin during the Paleogene. Similar conclusions were advanced by Silva-Arias et al (2019). Recently, Mora-Bohórquez et al (2017) provided new borehole data from Paleogene sedimentary rocks in the central and northern segments of the SJFB showing identical zircon U-Pb and ε Hf signatures to those reported by Cardona et al (2012), suggesting the existence of crust of oceanic affinity that served as a source of detrital materials to the Paleocene rocks presently exposed in the SJFB.…”
Section: Research Papersupporting
confidence: 70%
“…Otra fuente puede estar relacionada con los pequeños altos de basamento expuestos en el VIM como el Alto de Magangué-Cicuco, Alto de Betulia y el Alto de Jobo (Mora et al, 2018; ANH-Universidad de Caldas, 2020b), donde se han descrito rocas ígneas plutónicas y metamórficas de edades del Cretácico tardío y del Pérmico-Triásico, respectivamente (Mora et al, 2018;Silva-Arias et al, 2019). Adicionalmente, para el Mioceno medio se sugiere que algunos elementos lito estructurales afines al BPC ya se encontraban adosados a la margen Sur Americana.…”
Section: Implicaciones Paleogeográficasunclassified
“…Si bien los estudios estratigráficos, sedimentológicos y de procedencia en el Caribe colombiano (Duque-Caro, 1984;Guzmán et al, 2004;Bayona et al, 2007;ANH-Universidad de Caldas, 2009Zapata et al, 2010;Cardona et al, 2012;Silva-Arias et al, 2019;Osorio-Granada et al, 2020) han permitido conocer, entre otros, las áreas fuente de los detritos, los ambientes de depósito, los cambios tanto en la sedimentación como en sus áreas de aporte, y han ayudado a comprender mejor la evolución geológica y paleogeográfica de la región, específicamente del Cenozoico, el presente estudio enfatiza el conocimiento detallado de las fuentes de aporte de sedimentos en el CPSJ durante el Mioceno tardío. La importancia de esta contribución radica en el papel fundamental de la procedencia al momento de evaluar la historia de levantamiento y exhumación por erosión de los macizos cordilleranos aportantes a la cuenca (adyacentes o distales), la evolución de la paleored fluvial, y de la influencia del magmatismo al momento de la sedimentación en la esquina noroccidental de Colombia (Figura 1).…”
unclassified