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Clastic deposition, provenance, and sequence of Andean thrusting in the frontal Eastern Cordillera and Llanos foreland basin of Colombia

2011; Geological Society of America; Volume: 124; Issue: 1-2 Linguagem: Inglês

10.1130/b30412.1

1943-2674

Alejandro Bande, Brian K. Horton, Jesús Carrera, Andrés Mora, Maurício Parra, Daniel F. Stöckli,

Geological and Tectonic Studies in Latin America

Research Article| January 01, 2012 Clastic deposition, provenance, and sequence of Andean thrusting in the frontal Eastern Cordillera and Llanos foreland basin of Colombia Alejandro Bande; Alejandro Bande 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA †Present address: Institut für Erd- und Umweltwissenschaften, Universität Potsdam, 14476 Potsdam, Germany. Search for other works by this author on: GSW Google Scholar Brian K. Horton; Brian K. Horton § 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA2Institute for Geophysics, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA §E-mail: horton@mail.utexas.edu Search for other works by this author on: GSW Google Scholar Juan C. Ramírez; Juan C. Ramírez 3Escuela de Geología, Universidad Industrial de Santander, Bucaramanga, Colombia4Instituto Colombiano del Petróleo, Ecopetrol, Bucaramanga, Colombia Search for other works by this author on: GSW Google Scholar Andrés Mora; Andrés Mora 4Instituto Colombiano del Petróleo, Ecopetrol, Bucaramanga, Colombia Search for other works by this author on: GSW Google Scholar Mauricio Parra; Mauricio Parra 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA4Instituto Colombiano del Petróleo, Ecopetrol, Bucaramanga, Colombia Search for other works by this author on: GSW Google Scholar Daniel F. Stockli Daniel F. Stockli 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA5Department of Geology, University of Kansas, Lawrence, Kansas 66045, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Alejandro Bande †Present address: Institut für Erd- und Umweltwissenschaften, Universität Potsdam, 14476 Potsdam, Germany. 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA Brian K. Horton § 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA2Institute for Geophysics, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA Juan C. Ramírez 3Escuela de Geología, Universidad Industrial de Santander, Bucaramanga, Colombia4Instituto Colombiano del Petróleo, Ecopetrol, Bucaramanga, Colombia Andrés Mora 4Instituto Colombiano del Petróleo, Ecopetrol, Bucaramanga, Colombia Mauricio Parra 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA4Instituto Colombiano del Petróleo, Ecopetrol, Bucaramanga, Colombia Daniel F. Stockli 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, Texas 78712, USA5Department of Geology, University of Kansas, Lawrence, Kansas 66045, USA §E-mail: horton@mail.utexas.edu Publisher: Geological Society of America Received: 06 Sep 2010 Revision Received: 17 Mar 2011 Accepted: 10 Apr 2011 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 2012 Geological Society of America GSA Bulletin (2012) 124 (1-2): 59–76. https://doi.org/10.1130/B30412.1 Article history Received: 06 Sep 2010 Revision Received: 17 Mar 2011 Accepted: 10 Apr 2011 First Online: 08 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Alejandro Bande, Brian K. Horton, Juan C. Ramírez, Andrés Mora, Mauricio Parra, Daniel F. Stockli; Clastic deposition, provenance, and sequence of Andean thrusting in the frontal Eastern Cordillera and Llanos foreland basin of Colombia. GSA Bulletin 2012;; 124 (1-2): 59–76. doi: https://doi.org/10.1130/B30412.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Sedimentological, provenance, and detrital thermochronological results for basin fill at the modern deformation front of the northern Andes (6°N latitude) provide a long-term, Eocene to Pliocene record of foreland-basin sedimentation along the Eastern Cordillera–Llanos basin boundary in Colombia. Lithofacies assemblages and paleocurrent orientations in the upward-coarsening, ~5-km-thick succession of the Nunchía syncline reveal a systematic shift from craton-derived, shallow-marine distal foreland (back-bulge) accumulation in the Mirador Formation, to orogen-sourced, deltaic, and coastal-influenced sedimentation of the distal to medial foreland (foredeep) in the Carbonera and León Formations, to anastomosing fluvial and distributive braided fluvial megafan systems of the proximal foreland (foredeep to wedge-top) basin in the lower and upper Guayabo Formation. These changes in depositional processes and sediment dispersal are supported by up-section variations in detrital zircon U-Pb and (U-Th)/He ages that record exhumation of evolving, compartmentalized sediment source areas in the Eastern Cordillera. The data are interpreted in terms of a progressive eastward advance in fold-and-thrust deformation, with late Eocene–Oligocene deformation in the axial zone of the Eastern Cordillera along the western edge of Floresta basin (Soapaga thrust), early Miocene reactivation (inversion) of the eastern margin of the Mesozoic rift system (Pajarito and Guaicaramo thrusts), and middle–late Miocene propagation of a footwall shortcut fault (Yopal thrust) that created the Nunchía syncline in a wedge-top (piggyback) setting of the eastern foothills along the transition from the Eastern Cordillera to Llanos foreland basin. Collectively, the data presented here for the frontal Eastern Cordillera define a general in-sequence pattern of eastward-advancing fold-and-thrust deformation during Cenozoic east-west shortening in the Colombian Andes. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.