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Pliegue volcado con cleavage fracture sobreimpuesto en sedimentitas del Complejo Quebradagrande

 Volume 2




Volume  2   Mesozoic

Table of Contents

Only the abstracts and keywords of the manuscripts accepted up to now have been included.


Chapter 1

The Permian – Triassic history of magmatic rocks of the northern Andes (Colombia and Ecuador): Supercontinent assembly and disassembly

By Richard SPIKINGS and Andre PAUL

Pages 1–31

Manuscript accepted October 29, 2018


Northwestern South America and its conjugate margins record the Permian assembly of Pangaea, its Triassic fragmentation and opening of the proto–Caribbean ocean, and the onset of the Andean cycle at ~209 Ma. We review Permian and Triassic magmatic rocks exposed in the cordilleras and dispersed inliers in Colombia and Ecuador, and present a large geochronological, geochemical, isotopic and thermochronological database. These data are used to develop a model for the evolution of rocks within Colombia and Ecuador during the formation and destruction of Pangaea. Similar data has been assembled from studies of the southern North American and western Caribbean Plates, as well as Venezuela and further south within South America, and a large–scale reconstruction for western Pangaea is provided. Permian magmatic rocks in Colombia and Ecuador (288–253 Ma) formed within a continental arc system which extended from at least southern North America to southern Perú. The Permian arc within northwestern South America was dismembered during Cenozoic interactions with the Caribbean Plate, causing some blocks to be transferred eastwards. Compression and regional metamorphism at ~250 Ma is best recorded in the Sierra Nevada de Santa Marta, and represents the final stages of amalgamation and thickening of western Pangaea. Continental rifting prevailed within southern North America and the entire western margin of South America during 245–216 Ma. Significant back–arc extension in northwestern South America lead to a rift–to–drift transition in Colombia and Ecuador, forming oceanic lithosphere of the proto–Caribbean. Rifting failed south of the Huancabamba Deflection, and is preserved as Triassic basins in Perú, western Argentina and Chile. Triassic rifting represents the early fragmentation of western Pangaea, and the attenuation of its margin may be a prelude to complete separation by enhancing mantle upwelling, inducing a large igneous province and weakening the crust within a tensile regime.

Keywords: Permian Triassic, Pangaea, supercontinent, continental rift, anatexis.


Chapter 2

The petrologic nature of the "Medellín Dunite" revisited: An algebraic approach and proposal of a new definition of the geological body

By Antonio GARCIA–CASCO, Jorge Julián RESTREPO, Ana María CORREA–MARTÍNEZ, Idael Francisco BLANCO–QUINTERO, Joaquín Antonio PROENZA, Marion WEBER and Lidia BUTJOSA

Pages 33–51

Manuscript accepted October 29, 2018

Keywords: Medellín Dunite, Medellín Metaharzburgitic Unit, metaharzburgite, phase relations, ophiolite.


Chapter 3

Late Triassic to Jurassic magmatism in Colombia: Implications for the evolution of northern margin of South America

By Julián Andrés LÓPEZ–ISAZA and Carlos A. ZULUAGA

Pages 53–75


Chapter 4

Diverse Jurassic magmatic arcs of the Colombian Andes: Constraints from petrography, geochronology and geochemistry

By Gabriel RODRÍGUEZ–GARCÍA, Ana María CORREA–MARTÍNEZ, Gilberto ZAPATA–GARCÍA, María Isabel ARANGO–MEJÍA, Gloria OBANDO–ERAZO, Juan Pablo ZAPATA–VILLADA and José Gilberto BERMÚDEZ–CORDERO

Pages 77–99


Chapter  5

Jurassic evolution of the northwestern corner of Gondwana: Present knowledge and future challenges in studying Colombian Jurassic rocks

By Germán Alonso BAYONA–CHAPARRO, Camilo BUSTAMANTE, Giovanny NOVA and Ana Milena SALAZAR–FRANCO

Pages 101–132

Manuscript accepted October 29, 2018

Keywords:   Jurassic, tectonic evolution, Gondwana, orthogonal margins, geodynamics.


Chapter  6

140 million years of tropical biome evolution

By Carlos JARAMILLO

Pages 134–157

Manuscript accepted October 29, 2018


Keywords: Neotropical biomes, tropical rainforest, gymnosperms, angiosperms, evolution.



Chapter  7

Tectonostratigraphic terranes in Colombia: An update. Second part: Oceanic terranes

By Jean–François TOUSSAINT and Jorge Julián RESTREPO

Pages 159–167

Manuscript accepted March 29, 2019


Keywords: Colombian tectonostratigraphic terranes, oceanic terranes, allochthonous terranes, Caribbean Plateau, transpressional collisional metamorphism. 



Chapter  8

Detrital U–Pb provenance, mineralogy, and geochemistry of the Cretaceous Colombian back–arc basin

By Javier GUERRERO, Alejandra MEJÍA–MOLINA and Jose OSORNO

Pages 169–185


Chapter  9

Biomicrite, marlstone, and shale properties. Exploration of non–conventional hydrocarbons from the Cretaceous Colombian back–arc basin

By Javier GUERRERO, Alejandra MEJÍA–MOLINA and Jose OSORNO

Pages 187–211


Chapter  10

Cretaceous record from a Mariana to an Andean–type margin in the Central Cordillera of the Colombian Andes

By Agustín CARDONA, Santiago LEÓN, Juan S. JARAMILLO, Victor VALENCIA, Sebastián ZAPATA, Andrés PARDO–TRUJILLO, Axel SCHMITT, Dany MEJÍA and J.C ARENAS

Pages 213–235


Chapter  11

Barremian deposits of Colombia: A special emphasis on marine successions

By Pedro PATARROYO

Pages 237–254

Manuscript accepted February 14, 2019


Keywords:Barremian deposits, biostratigraphy, lithostratigraphy, Colombia.



Chapter  12

Plesiosaurs, palaeoenvironments and the Paja Formation Lagerstätte of central Colombia: An overview

By Leslie Francis NOÈ  and Marcela GÓMEZ–PÉREZ

Pages 256–276

Manuscript accepted October 29, 2018


Keywords: Lagerstätte, Lower Cretaceous, Paja Formation, palaeoenvironments, Plesiosauria.



Chapter  13

Two Cretaceous subduction events in the Central Cordillera: Insights from the high P–low T metamorphism

By Camilo BUSTAMANTE and Andrés BUSTAMANTE

Pages 278–299

Manuscript accepted October 29, 2018


Keywords:blueschist, eclogite, northern Andes, high–pressure metamorphism.