Nickel isotopic studies in meteorites |
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| Authors: | Philippe Morand Claude J Allègre |
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| Institution: | 1. Laboratoire de Géochimie et Cosmochimie (LA 196), Institut de Physique du Globe, Universitéde Paris VI, 4, place Jussieu, 75230 Paris Cedex 05 France;2. Département des Sciences de la Terre, Universitéde Paris VII, 4, place Jussieu, 75230 Paris Cedex 05 France |
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| Abstract: | We have analyzed the nickel isotopic composition of meteoritic materials by high-precision mass spectrometry. The samples analyzed include almost all meteorite types for which large isotopic anomalies have been reported for oxygen, silver, magnesium and titanium. These samples are C1, C3, L, LL, H and E chondrites, IVB irons, Eagle Station pallasite and inclusion, matrix and “whole rock” samples of the Allende meteorite. The result is that we have not found any anomaly for nickel isotopic compositions within our accuracy of 0.7‰ for61Ni/60Ni, 0.4-0.08‰ for62Ni/60Ni and 1–1.5‰ for64Ni/60Ni. |
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