KEI IKEHATA

Degree�FPh.D.(Science), 2009, Graduate School of Science, The University of Tokyo

Affiliation and Title
Faculty of Life and Environmental Sciences
Doctoral Program in Earth Evolution Sciences, Graduate School of Life and Environmental Sciences, University of Tsukuba
Assistant Professor of Petrology research group

Research Areas
�žPetrology�EEconomic Geology�EGeochemistry�EVolcanology�ž

Research Interests
�ŸResearch on distribution and behavior of volatile and metal element in magmatic-hydrothermal system�Ÿ
(1)Knowledge of the volatile content of magma is of fundamental importance for understanding various magmatic processes, eruption styles and ore formation.
Melt inclusions trapped in phenocrysts may retain dissolved volatiles of magmas, providing information on these concentrations.
In this study, I will analyze major, trace and volatile element compositions for volcanic products (melt inclusion) of typical active volcanos in Japan in order to assess geochemical variation in these products with time during eruption.
These data help to predict future volcanic activity and also understand various magmatic ore-forming processes below.
(2)Recent advances in MC-ICP-MS have made it possible to measure non-traditional (e.g., Cu, Fe, Zn) metallic stable isotopic ratios of geochemical samples with high precision and accuracy, which might enable us to assess ore-forming processes more directly.
In this study, I will develop precise and accurate in situ methods for analysis of many non-traditional stable isotopic ratios in various ore-samples.
Then, I will apply developed methods to ore samples from seafloor hydrothermal deposits (e.g., Izu-Ogasawara and Ryukyu arc) for understanding ore-forming processes of these deposits.
(3)Formation mechanism of magmatic native copper, hydrothermal native copper, and secondary(supergene) native copper.

Professional Affiliations
The Geochemical Society of Japan �AThe volcanological Society of Japan�AJapan Association of Mineralogical Sciences�A The Society of Resource Geology
American Geophysical Union(AGU)�ASociety of Economic Geologists(SEG)

Award
2013 Research Incentive Award of The Society of Resource Geology

Contact Information:
Mailing Address: Doctoral Program in Earth Evolution Sciences, Tennodai 1-1-1, Tsukuba 305-0006, Japan
Office: Science Building B302
Phone: +81-29-853-7175
Fax:+81-29-853-7887
E-mail: ikkei_at mark_geol.tsukuba.ac.jp