Mn-Cr relative sensitivity Factors for Secondary Ion Mass Spectrometry analysis of Mg-Fe-Ca olivine and implications for the Mn-Cr chronology of meteorites

McKibbin, SeannAmelin, YuriO’Neill, Hugh St. C.Holden, PeterIreland, Trevor2015-12-131872-9533http://hdl.handle.net/1885/72417Secondary Ion Mass Spectrometry (SIMS) is used to date meteoritic olivine using the 53Mn-53Cr short-lived decay scheme. This involves simultaneously measuring the Cr-isotope composition and Mn/Cr ratio of a sample, but the relative sensitivity of SIMS toKeywords: carbonaceous chondrite; chromium; geochronology; isotopic composition; isotopic ratio; manganese; mass spectrometry; meteorite; olivineMn-Cr relative sensitivity Factors for Secondary Ion Mass Spectrometry analysis of Mg-Fe-Ca olivine and implications for the Mn-Cr chronology of meteorites201310.1016/j.gca.2013.02.0252016-02-24