Bending the Bolivian orocline in real time

Research Article| November 01, 2005 Bending the Bolivian orocline in real time Richard W. Allmendinger; Richard W. Allmendinger 1Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853-1504, USA Search for other works by this author on: GSW Google Scholar Robert Smalley, Jr.; Robert Smalley, Jr. 2Center for Earthquake Research and Information, University of Memphis, 3890 Central Avenue, Suite 1, Memphis, Tennessee 38152, USA Search for other works by this author on: GSW Google Scholar Michael Bevis; Michael Bevis 3Geodetic Science, The Ohio State University, 470 Hitchcock Hall, 2070 Neil Avenue, Columbus, Ohio 43210, USA Search for other works by this author on: GSW Google Scholar Holly Caprio; Holly Caprio 4Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853-1504, USA Search for other works by this author on: GSW Google Scholar Benjamin Brooks Benjamin Brooks 5School of Ocean and Earth Science and Technology, University of Hawaii, 1680 East-West Road, Honolulu, Hawaii 96822, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Richard W. Allmendinger 1Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853-1504, USA Robert Smalley, Jr. 2Center for Earthquake Research and Information, University of Memphis, 3890 Central Avenue, Suite 1, Memphis, Tennessee 38152, USA Michael Bevis 3Geodetic Science, The Ohio State University, 470 Hitchcock Hall, 2070 Neil Avenue, Columbus, Ohio 43210, USA Holly Caprio 4Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853-1504, USA Benjamin Brooks 5School of Ocean and Earth Science and Technology, University of Hawaii, 1680 East-West Road, Honolulu, Hawaii 96822, USA Publisher: Geological Society of America Received: 11 Apr 2005 Revision Received: 19 Jul 2005 Accepted: 22 Jul 2005 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2005) 33 (11): 905–908. https://doi.org/10.1130/G21779.1 Article history Received: 11 Apr 2005 Revision Received: 19 Jul 2005 Accepted: 22 Jul 2005 First Online: 02 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 Richard W. Allmendinger, Robert Smalley, Michael Bevis, Holly Caprio, Benjamin Brooks; Bending the Bolivian orocline in real time. Geology 2005;; 33 (11): 905–908. doi: https://doi.org/10.1130/G21779.1 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 SocietyGeology Search Advanced Search Abstract Global positioning system (GPS) data from the central Andes record vertical axis rotations that are consistently counterclockwise in Peru and Bolivia north of the bend in the mountain belt, and clockwise to the south in southern Bolivia, Argentina, and Chile. These geologically instantaneous rotations have the same sense as rotations that have accrued over millions of years and are recorded by paleomagnetic and geologic indicators. The change in sign of the rotation at both decadal and million-year time scales occurs across the axis of topographic symmetry that defines the Bolivian orocline. When extrapolated to a common time interval, the magnitudes of rotation from geologic features and from GPS are surprisingly similar, given that a significant part of the instantaneous deformation field is probably elastic and due to interseismic locking of the plate boundary. Some of the interseismic deformation field must reflect permanent deformation, and/or some of the current elastic deformation will be converted to upper-plate permanent deformation over time rather than be recovered by elastic rebound during interplate earthquakes. We suggest that the spatial patterns of the elastic and the permanent modes of bending are similar because they are driven by the same stress field. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.