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Geochemical Journal
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Hafnium isotope ratios of nine GSJ reference samples

Takeshi Hanyu, Shun'ichi Nakai, Riichiro Tatsuta
Geochemical Journal, Vol. 39, No. 1, P. 83-90, 2005

ABSTRACT

176Hf/177Hf ratios of nine geochemical reference rocks from the Geological Survey of Japan, together with BIR-1 and BCR-2, were determined using multi-collector inductively coupled plasma mass spectrometry. Our data for BIR-1, BCR-2 and JB-1 are in agreement with those previously reported, demonstrating the appropriateness of the chemical procedure and isotopic measurement employed in this study. The reference rocks have a wide range of 176Hf/177Hf covering the field defined by various volcanic rocks, such as mid-ocean ridge basalts, ocean island basalts, and subduction related volcanic rocks. They are therefore suitable as rock standards for Hf isotope measurement of geological samples.

KEYWORDS

GSJ reference samples, Hafnium isotope, multi-collector ICP-MS, ion exchange

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