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Terrestrial Cosmogenic Nuclides as Paleoaltimetric Proxies

2007; Mineralogical Society of America; Volume: 66; Issue: 1 Linguagem: Inglês

10.2138/rmg.2007.66.11

1943-2666

C. A. Riihimaki, Julie C. Libarkin,

Geological and Geochemical Analysis

Research Article| October 01, 2007 Terrestrial Cosmogenic Nuclides as Paleoaltimetric Proxies Catherine A. Riihimaki; Catherine A. Riihimaki Department of Geology, Bryn Mawr College, 101 N. Merion Ave,.Bryn Mawr, Pennsylvania, 19010, U.S.A., criihima@brynmawr.edu Search for other works by this author on: GSW Google Scholar Julie C. Libarkin Julie C. Libarkin Department of Geological Sciences & Division of Science and Mathematics Education (DSME), Michigan State University, 206 Natural Science Building, East Lansing, Michigan, 48824–1115, U.S.A., libarkin@msu.edu Search for other works by this author on: GSW Google Scholar Author and Article Information Catherine A. Riihimaki Department of Geology, Bryn Mawr College, 101 N. Merion Ave,.Bryn Mawr, Pennsylvania, 19010, U.S.A., criihima@brynmawr.edu Julie C. Libarkin Department of Geological Sciences & Division of Science and Mathematics Education (DSME), Michigan State University, 206 Natural Science Building, East Lansing, Michigan, 48824–1115, U.S.A., libarkin@msu.edu Publisher: Mineralogical Society of America First Online: 09 Mar 2017 © The Mineralogical Society Of America Reviews in Mineralogy and Geochemistry (2007) 66 (1): 269–278. https://doi.org/10.2138/rmg.2007.66.11 Article history First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Catherine A. Riihimaki, Julie C. Libarkin; Terrestrial Cosmogenic Nuclides as Paleoaltimetric Proxies. Reviews in Mineralogy and Geochemistry 2007;; 66 (1): 269–278. doi: https://doi.org/10.2138/rmg.2007.66.11 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 SocietyReviews in Mineralogy and Geochemistry Search Advanced Search Abstract The production rates of terrestrial in situ cosmogenic nuclides depend on the altitude and can therefore be used to constrain paleoaltitudes if the history of cosmogenic-nuclide production in a region can be constrained. This chapter discusses the theory behind cosmogenic-nuclide paleoaltimetry, sampling strategies, and practical limitations of the technique. Three exposure scenarios may allow for the calculation of past altitudes: 1) exposure for a finite time period at a single elevation and without erosion or burial, followed by immediate shielding from further production of cosmogenic nuclides; 2) steady uplift of a surface throughout nuclide production, without erosion or burial; and 3) exposure of a sample without erosion or burial for a sufficient duration that the concentration of a cosmogenic radionuclide has reached equilibrium. To constrain paleoelevation, all exposure scenarios require independent evidence of the depth-history of a sample during exposure to cosmic rays because production rates attenuate rapidly in rock. Depth profiles and measuring multiple nuclides allow for better constraints of parameters in paleoaltitude calculations. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.