Tectonic and environmental factors controlling on the evolution of Oligo-Miocene shallow marine carbonate factories along a tropical SE Circum-Caribbean

J. C. Silva-Tamayo, M. E. Lara, L. Nana Yobo, Y. D. Erdal, J. Sanchez, P. A. Zapata-Ramirez

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    The evolution of the Cenozoic Circum-Caribbean shallow marine carbonate factories and ecosystems has been for long attributed to major global climatic and environmental changes. Although temporal variations in the Cenozoic shallow marine carbonate factories in this region seem to follow global trends, the potential effects of regional processes, such tectonic activity and local environmental change, on the evolution of the shallow marine carbonate factories are not well established. Here we present detailed sedimentologic and stratigraphic information from Middle Oligocene - Middle Miocene (Chattian-Burdigalian) shallow marine carbonate successions of the Siamana Formation in the Cocinetas sub-basin, Alta Guajira Basin, Guajira Peninsula, northern Colombia. We document the potential effects of regional tectonics and local environmental deterioration on the evolution of the Oligocene-Miocene tropical shallow marine carbonate factories along the SE Circum-Caribbean. Our results show that mixed heterozoan-photozoan biotic associations dominated the shallow marine carbonate factories during the Chattian, while purely photozoan biotic associations constituted the primary carbonate factory during the Aquitanian-Burdigalian transition. The Chattian mixed heterozoan/photozoan biotic association is associated with the development of mixed carbonate/siliciclastic shelves along which detached patchy reef areas occur. The onset of the Aquitanian-Burdigalian purely photozoan biotic associations parallels the increase in coral diversity as well as the occurence of rimmed/detached carbonate platforms in the northern part of the basin. The development of the rimmed/detached platforms coincides with a time of increased basin subsidence and increased silicilcastic input along the southernmost part of the basin. A significant change in the carbonate factory occurs in the Late Burdigalian, when purely heterozoan (rodalgal) biotic associations constituted the main shallow marine carbonate factory. This shift in the carbonate factory was favored by a major extensional component that resulted in subsidence and relative sea level rise along the Caribbean - South American margin. This extensional component is evidenced by the occurrence of normal faults that controlled the thickness and lateral extension of shallow marine rodalgal biostromes. The onset of the rodalgal biostromes, which elsewhere is associated with excellent carbonate reservoirs, also parallels the initiation of the Urumaco Trough and a further increase in silicilastic input toward the Cocinetas sub-basin. It also parallels a major tectonic reactivation along the Caribbean - South American plate boundary which resulted from the initial closure of the Panama Seaway.

    Original languageEnglish
    Pages (from-to)213-237
    Number of pages25
    JournalJournal of South American Earth Sciences
    StatePublished - Oct 2017

    Bibliographical note

    Funding Information:
    This work was supported by the financial aid of the Colombian Petroleum Company and the Research Office from the Universidad de Caldas, Manizales, Colombia (Grants VIP 0025311 and VIP 0027411 to Juan Carlos Silva-Tamayo). Juan Carlos Silva-Tamayo is thankful to COLCIENCIAS for providing financial support through the research grant: 727771451027. Juan Carlos Silva-Tamayo also acknowledge the financial support of the European Union trough the Marie Curie FP7 action grant program, project: Permian-Triassic CAS. Juan Carlos Silva Tamayo is thankful with the Smithsonian Tropical Research Institute for providing financial support through a postdoctoral scholarship. Paula Andrea Zapata and Juan Carlos Silva-Tamayo are thankful to COLCIENCIAS for providing financial support through a research grant: 7277-569-33195. Deniz Erdal is thankful with the Turkish Petroleum Corporation for financial support through the MSc scholarship. The work also favored from the constructive scientific discussion with Camilo Montes and Agustin Cardona from the Smitshonian Tropial Research Institute in Panama and German Bayona from the Corporación Geológica ARES.

    Publisher Copyright:
    © 2017 Elsevier Ltd


    • Caribbean carbonate factories
    • Cenozoic
    • Colombia
    • Tropical reefs

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