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limestone and clastic deposits of the Las Canas Limestone, Don Juan Formation, and other unnamed formations were deposited unconformably upon older rocks.

This latter accretionary event was triggered by an enhanced mid - Atlantic rifting and the inception of the Pacific Superplume event that ultimately gave rise to the Caribbean plate. Possible configuration of inter-American fault zone during onset of SW-dipping subduction at the Antilles segment. Features associated with the subduction of the Nazca Plate, such as active calc-alkaline volcanic arcs built on South American crust, only became established in Ecuador, and then Colombia, as the triple junction migrated to the north. Dashed line along inter-American transform is another option for the Proto-Caribbean spreading centre, as drawn by Pindell et al.Inset box 3: transfer zone between trenches lengthens with time and gives deep mélanges additional chance to rise towards surface.

The elemental and isotopic characteristics of groups 1 and 2 serpentinites denote the influx of fluids evolved from the subducting slab. Arc magmatism lulls and development of metamorphic complexes prior to this latest Cretaceous -Eocene tectonic event have been explained by transient choking of the subduction channel with buoyant features in subducting proto-Caribbean lithosphere (Garcia-Casco et al. In general, two principal structural levels can be distinguished in the geological structure of Cuba.Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content? La interpretación genética de la mineralización de Castellanos que se propone está basada en la precipitación repetitiva (multifásica) de los sulfuros+carbonatos como consecuencia de la interacción de fluidos/salmueras mineralizantes ascendentes a lo largo de las fracturas que dieron lugar al complejo filoniano con los sedimentos ricos en materia orgánica depositados en el fondo de una subcuenca anóxica desarrollada en la cuenca de margen pasivo donde se depositó la Formación San Cayetano. New U–Pb and “double dating” (U–Pb and U–Th)/He) age determinations on detrital zircons from Upper Cretaceous–Miocene formations greatly improve our understanding of both evolutionary and clastic provenance models for southern Mexico and the western Caribbean.

Our model provides a comprehensive, regional and testable framework for analysing the as yet poorly understood collage of arc remnants, basement blocks and basins in the Northern Andes. Initiation of flat-slab subduction of the Caribbean Plate beneath Colombia at about 100 Ma is associated with limited magmatism, with no subsequent development of a magmatic arc.The high-P complexes with eclogites, blueschists facies metamorphic rocks and ophiolitic mélanges that outcrop in the Cordillera Septentrional of Hispaniola, and in the Samaná Peninsula form part of the accretionary wedge related to the collision between the North American Plate and the Caribbean Plate. It consists of a Jurassic- Cretaceous mainly marine sedimentary sequence now exposed as a thrust and fold belt along the northern edge of the Cuban mainland.