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. 2020 Feb 11;55(12):2758–2771. doi: 10.1111/maps.13446

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© 2020 The Authors. Meteoritics & Planetary Science published by Wiley Periodicals, Inc. on behalf of The Meteoritical Society (MET).

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Plots of (a) ε⁶⁰Ni (61/58) versus ε¹⁹⁶Pt, (b) ε⁶¹Ni (62/58) versus ε¹⁹⁶Pt, and (c) ε⁶⁴Ni (62/58) versus ε¹⁹⁶Pt measured in IAB iron meteorites along with galactic cosmic ray model results, which represent meteoroids with radii spanning 5–120 cm, a cosmic ray exposure age of 1000 Ma, a Co/Ni ratio of 0.067, and a Cu/Ni ratio of 0.0022 (Wasson and Kallemeyn 2002). The gray band represents the analytical resolution for εⁱNi, based on data for terrestrial samples. Data for ε¹⁹⁶Pt are from Hunt et al. (2018).