Portal de Periódicos da CAPES

Orogenic wedge advance in the northern Andes: Evidence from the Oligocene-Miocene sedimentary record of the Medina Basin, Eastern Cordillera, Colombia

2009; Geological Society of America; Volume: 121; Issue: 5-6 Linguagem: Inglês

10.1130/b26257.1

1943-2674

Maurício Parra, Andrés Mora, Carlos Jaramillo, Manfred R. Strecker, Edward R. Sobel, Luis Quiroz, María Dolores Hernández Rueda, Vladimir Torres,

Geological and Geophysical Studies Worldwide

Research Article| May 01, 2009 Orogenic wedge advance in the northern Andes: Evidence from the Oligocene-Miocene sedimentary record of the Medina Basin, Eastern Cordillera, Colombia Mauricio Parra; Mauricio Parra † 1Institut für Geowissenschaften, Universität Potsdam, D-14476 Potsdam, Germany †E-mail: mauricio@geo.uni-potsdam.de Search for other works by this author on: GSW Google Scholar Andrés Mora; Andrés Mora § 1Institut für Geowissenschaften, Universität Potsdam, D-14476 Potsdam, Germany §Current Address: Instituto Colombiano del Petró-leo, Ecopetrol, AA 4185, Bucaramanga, Colombia Search for other works by this author on: GSW Google Scholar Carlos Jaramillo; Carlos Jaramillo 2Center for Tropical Paleoecology and Archeology, Smithsonian Tropical Research Institute, Box 0843-03092, Balboa, Panama Search for other works by this author on: GSW Google Scholar Manfred R. Strecker; Manfred R. Strecker 3Institut für Geowissenschaften, Universität Potsdam, D-14476 Potsdam, Germany Search for other works by this author on: GSW Google Scholar Edward R. Sobel; Edward R. Sobel 3Institut für Geowissenschaften, Universität Potsdam, D-14476 Potsdam, Germany Search for other works by this author on: GSW Google Scholar Luis Quiroz; Luis Quiroz 4Center for Tropical Paleoecology and Archeology, Smithsonian Tropical Research Institute, Box 0843-03092, Balboa, Panama Search for other works by this author on: GSW Google Scholar Milton Rueda; Milton Rueda 5Instituto Colombiano del Petróleo, Ecopetrol, AA 4185, Bucaramanga, Colombia Search for other works by this author on: GSW Google Scholar Vladimir Torres Vladimir Torres 5Instituto Colombiano del Petróleo, Ecopetrol, AA 4185, Bucaramanga, Colombia Search for other works by this author on: GSW Google Scholar Author and Article Information Mauricio Parra † 1Institut für Geowissenschaften, Universität Potsdam, D-14476 Potsdam, Germany Andrés Mora § 1Institut für Geowissenschaften, Universität Potsdam, D-14476 Potsdam, Germany Carlos Jaramillo 2Center for Tropical Paleoecology and Archeology, Smithsonian Tropical Research Institute, Box 0843-03092, Balboa, Panama Manfred R. Strecker 3Institut für Geowissenschaften, Universität Potsdam, D-14476 Potsdam, Germany Edward R. Sobel 3Institut für Geowissenschaften, Universität Potsdam, D-14476 Potsdam, Germany Luis Quiroz 4Center for Tropical Paleoecology and Archeology, Smithsonian Tropical Research Institute, Box 0843-03092, Balboa, Panama Milton Rueda 5Instituto Colombiano del Petróleo, Ecopetrol, AA 4185, Bucaramanga, Colombia Vladimir Torres 5Instituto Colombiano del Petróleo, Ecopetrol, AA 4185, Bucaramanga, Colombia †E-mail: mauricio@geo.uni-potsdam.de §Current Address: Instituto Colombiano del Petró-leo, Ecopetrol, AA 4185, Bucaramanga, Colombia Publisher: Geological Society of America Received: 30 Apr 2007 Revision Received: 12 May 2008 Accepted: 06 Jul 2008 First Online: 03 Oct 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 2009 Geological Society of America GSA Bulletin (2009) 121 (5-6): 780–800. https://doi.org/10.1130/B26257.1 Article history Received: 30 Apr 2007 Revision Received: 12 May 2008 Accepted: 06 Jul 2008 First Online: 03 Oct 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Mauricio Parra, Andrés Mora, Carlos Jaramillo, Manfred R. Strecker, Edward R. Sobel, Luis Quiroz, Milton Rueda, Vladimir Torres; Orogenic wedge advance in the northern Andes: Evidence from the Oligocene-Miocene sedimentary record of the Medina Basin, Eastern Cordillera, Colombia. GSA Bulletin 2009;; 121 (5-6): 780–800. doi: https://doi.org/10.1130/B26257.1 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 Foreland basin development in the Andes of central Colombia has been suggested to have started in the Late Cretaceous through tectonic loading of the Central Cordillera. Eastward migration of the Cenozoic orogenic front has also been inferred from the foreland basin record west of the Eastern Cordillera. However, farther east, limited data provided by foreland basin strata and the adjacent Eastern Cordillera complicate any correlation among mountain building, exhumation, and foreland basin sedimentation. In this study, we present new data from the Medina Basin in the eastern foothills of the Eastern Cordillera of Colombia. We report sedimentological data and palynological ages that link an eastward-thinning early Oligocene to early Miocene syntectonic wedge containing rapid facies changes with an episode of fast tectonic subsidence starting at ca. 31 Ma. This record may represent the first evidence of topographic loading generated by slip along the principal basement-bounding thrusts in the Eastern Cordillera to the southwest of the basin. Zircon fission-track ages and paleocurrent analysis reveal the location of these thrust loads and illustrate a time lag between the sedimentary signal of topographic loading and the timing of exhumation (ca. 18 Ma). This lag may reflect the period between the onset of range uplift and significant removal of overburden. Vitrinite reflectance data document northward along-strike propagation of the deformation front and folding of the Oligocene syntectonic wedge. This deformation was coupled with a nonuniform incorporation of the basin into the wedge-top depozone. Thus, our data set constitutes unique evidence for the early growth and propagation of the deformation front in the Eastern Cordillera, which may also improve our understanding of spatiotemporal patterns of foreland evolution in other mountain belts. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.