Recent rapid uplift in the Bolivian Andes: Evidence from fission-track dating

Research Article| July 01, 1987 Recent rapid uplift in the Bolivian Andes: Evidence from fission-track dating Michael T. Benjamin; Michael T. Benjamin 1Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire 03755 Search for other works by this author on: GSW Google Scholar Noye M. Johnson; Noye M. Johnson 1Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire 03755 Search for other works by this author on: GSW Google Scholar Charles W. Naeser Charles W. Naeser 2Branch of Isotope Geology, U.S. Geological Survey, Denver, Colorado 80225 Search for other works by this author on: GSW Google Scholar Geology (1987) 15 (7): 680–683. https://doi.org/10.1130/0091-7613(1987)15<680:RRUITB>2.0.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Michael T. Benjamin, Noye M. Johnson, Charles W. Naeser; Recent rapid uplift in the Bolivian Andes: Evidence from fission-track dating. Geology 1987;; 15 (7): 680–683. doi: https://doi.org/10.1130/0091-7613(1987)15<680:RRUITB>2.0.CO;2 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 Apatite and zircon fission-track cooling ages constrain the Tertiary cooling and uplift history of the eastern Cordillera and Altiplano of Bolivia. Fission-track data are from two Triassic plutons and surrounding Paleozoic metasedimentary rocks in the eastern Andes north of La Paz. Zircon cooling ages indicate that the roof of the Huayna Potosi pluton was emplaced in the zircon partial annealing zone and that the Zongo pluton was emplaced entirely in the zircon total annealing zone. Apatite cooling ages for both plutons record uplift in the past 5–15 m.y., and zircon cooling ages from the Zongo pluton reflect uplift in the past 25–45 m.y. Uplift rates calculated by these apatite and zircon cooling ages suggest that uplift rates were 0.1–0.2 mm/yr between 20 and 40 Ma and increased significantly between 10 and 15 Ma. By 3 Ma, uplift rates may have been as high as 0.7 mm/yr. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.