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- W2051284328 abstract "Research Article| September 01, 2005 Development of the Colombian foreland-basin system as a consequence of diachronous exhumation of the northern Andes Elías Gómez; Elías Gómez 1Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853, USA Search for other works by this author on: GSW Google Scholar Teresa E. Jordan; Teresa E. Jordan 1Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853, USA Search for other works by this author on: GSW Google Scholar Richard W. Allmendinger; Richard W. Allmendinger 1Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853, USA Search for other works by this author on: GSW Google Scholar Nestor Cardozo Nestor Cardozo 1Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Elías Gómez 1Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853, USA Teresa E. Jordan 1Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853, USA Richard W. Allmendinger 1Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853, USA Nestor Cardozo 1Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853, USA Publisher: Geological Society of America Received: 22 Jun 2003 Revision Received: 18 Oct 2004 Accepted: 21 Oct 2004 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (2005) 117 (9-10): 1272–1292. https://doi.org/10.1130/B25456.1 Article history Received: 22 Jun 2003 Revision Received: 18 Oct 2004 Accepted: 21 Oct 2004 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Elías Gómez, Teresa E. Jordan, Richard W. Allmendinger, Nestor Cardozo; Development of the Colombian foreland-basin system as a consequence of diachronous exhumation of the northern Andes. GSA Bulletin 2005;; 117 (9-10): 1272–1292. doi: https://doi.org/10.1130/B25456.1 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 This study addresses multiple controls on foreland-basin accommodation and contributes to enhanced understanding of the evolution of the northern Andes. The Middle Magdalena Valley Basin (MMVB), Eastern Cordillera, and Llanos Basin are part of a Late Cretaceous–Cenozoic foreland-basin system, east of the Colombian Central Cordillera. Mechanical modeling indicates that the primary control on complex distributions of sedimentary thicknesses, facies, and unconformities was lithospheric flexure in response to crustal loads from the Central and Eastern Cordilleras. Shorter-wavelength folding and paleoaltitude determined the local character of strata. Our mechanical modeling consists of the application of orogenic and sedimentary loads extracted from geologic data on a continuous elastic lithosphere. The results validate two major basin configurations. The first configuration was a Maastrichtian–early Eocene foreland basin coupled with Central Cordillera uplift. Growth strata record continuous sedimentation in the Eastern Cordillera, whereas regional unconformities in the Llanos Basin (distal foreland basin) reflect isostatic adjustments of the basin's amplitude and wavelength to Central Cordillera episodic uplift and tectonic quiescence. The second major basin configuration was characterized by Central Cordillera erosion since middle Eocene times recorded by a regional pediment surface. In the absence of Central Cordillera effective loading, loads from onlapping sediments and Eastern Cordillera piggyback sub-basins provoked post–middle Eocene accommodation in the MMVB and Llanos Basin. Intensified Eastern Cordillera uplift during the Neogene produced basinal tilting recorded by unconformities in the MMVB. This study highlights the importance of assessing the causes of tectonic accommodation as a foundation for interpretation of the evolution of large foreland and intermontane basins. You do not have access to this content, please speak to your institutional administrator if you feel you should have access." @default.
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- W2051284328 title "Development of the Colombian foreland-basin system as a consequence of diachronous exhumation of the northern Andes" @default.
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