A mineralogical and chemical description of the volcanic products of 2000 Miyakejima eruption is reported. The volcanic products of both June 27 submarine eruption and August 18 summit eruption are focused because they are believed to be clues to understand the magmatic processes in progress at Miyakejima.

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Volcanic Products of submarine eruption on June 27

Petrography and mineral chemistry of volcanic products from summit eruption on June 27

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Volcanic Products of submarine eruption on August 18

Petrography and mineral chemistry of volcanic products from summit eruption on August 18

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Whole rock chemistry

Classification diagrams for whole rock erupted on June 27 and August 18

reported by ERI Magma Research Group* (Research Group on Petrology of Magma Process in Volcano Research Center and Research Group on Magmatology in Division of Geodynamics)

(Information contacts: A.Yasuda, Div. Geodynamics, ERI, yasuda@magma.eri.u-tokyo.ac.jp)