Structure and age of the Lower Magdalena Valley basin basement, northern Colombia: New reflection-seismic and U-Pb-Hf insights into the termination of the central andes against the Caribbean basin

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• 作者：J. Alejandro Mora-Bohó ; rquez^a ; ^{alejandro.mora@hocol.com.co} ; Mauricio Ibá ; nez-Mejia^b ; ^c ; Onno Oncken^d ; Mario de Freitas^e ; Vickye Vé ; lez^a ; André ; s Mesa^f ; Lina Serna^a
• 关键词：Lower Magdalena Valley ; San Jacinto fold belt ; Caribbean ; Reflection seismic ; Basement ; U-Pb and Hf isotope geochronology
• 刊名：Journal of South American Earth Sciences
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：74
• 期：Complete
• 页码：1-26
• 全文大小：16342 K
• 卷排序：74

文摘

A detailed structural basement map of the Lower Magdalena Valley basin is presented. New evidence of possible oceanic terranes in the western Lower Magdalena basement is discussed. Mechanisms of formation of the basement architecture are proposed.