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The NUNAtak Ice Thinning (NUNAIT) Calculator for Cosmonuclide Elevation Profiles
Version 1
: Received: 15 July 2021 / Approved: 19 July 2021 / Online: 19 July 2021 (13:12:13 CEST)
A peer-reviewed article of this Preprint also exists.
Rodés, Á. The NUNAtak Ice Thinning (NUNAIT) Calculator for Cosmonuclide Elevation Profiles. Geosciences 2021, 11, 362. Rodés, Á. The NUNAtak Ice Thinning (NUNAIT) Calculator for Cosmonuclide Elevation Profiles. Geosciences 2021, 11, 362.
Abstract
Cosmogenic nuclides are widely used to constrain the landscape history of glaciated areas. At nunataks in continental polar regions with extremely arid conditions, cosmogenic nuclides are often the only method available to date the ice thinning history of the glacier. However, the amount of cosmogenic isotopes accumulated at the surface of nunataks depends not only on the length of time that rock has been exposed since the last deglaciation, but on the full history of the surface, including muon production under ice, exposure during previous interglacials, subaerial weathering rate, glacial erosion rate, and uplift rate of the nunatak. The NUNAtak Ice Thinning model (NUNAIT) simulates the cosmonuclide accumulation on vertical profiles, fitting the aforementioned parameters to a set of multi-isotope apparent ages from samples taken at different elevations over the ice-sheet surface. The NUNAIT calculator is an easy-to-use tool that constrains parameters that describe the geological history of a nunatak from a set of surface exposure ages.
Keywords
Nunatak; Cosmonuclides; 10Be; 26Al; 21Ne; 3He; 36Cl; 14C; MATLAB; Octave
Subject
Environmental and Earth Sciences, Atmospheric Science and Meteorology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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