Geoscience reports of Shimane University

島根大学総合理工学部地球資源環境学教室

ISSN:1343-9774

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Use this link to cite this item : https://ir.lib.shimane-u.ac.jp/31113

Geoscience reports of Shimane University 15

1996-12-25 発行

表面電離型質量分析計,MAT262による岩石・鉱物試料のSr-Nd同位体組成の測定

Sr and Nd isotopic analyses,using a thermal ionization mass spectrometer MAT262

Iizumi, Shigeru

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Extraction methods of Rb, Sr, Sm and Nd from rocks and minerals are described. Sr isotope ratio of standard sample NBS987 was repeatedly measured for a long terrn, using a mass spectrometer MAT262 at the Department of Geoscience, Shimane University. The isotope ratio is in a restricted range from 0.710260±0.000009 (2σ) to 0.710285±0.000009 (2σ). Sr isotope ratio was measured for the same six samples at the Department of Geosience, Shimane University and the Institute for Study of the Earth's Interior，Okayama University. Each sample gave quite similar isotope ratio13;

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