During the five‐year period (April 1981 ‐ March 1986), a series of fifteen rock reference samples, “Igneous rock series”, has been prepared by the Geological Survey of Japan (GSJ). Based on the data available (published and communicated), consensus values for major, minor and trace elements have been derived; these values are presented for this second series of samples as well as for the first series of two samples, Granodiorite JG‐1 and Basalt JB‐1.
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Ando et al. (1987) studied this question.
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