The Pheasant Memorial Laboratory
In order to understand the nucleosynthesis, formation and evolution of the solar system and Earth quantitatively, we are investigating (1) basic processes such as magma and fluid formation accompanied by elemental redistribution and isotopic fractionation, and (2) the timing of each event by various dating methods. For these purposes, many elemental and isotopic analytical methods, as well as low and high P-T experimental methods have been developed and employed.
For example, quantitative analyses of 58 elements are available using ICP-QMS and ICP-SFMS. Isotope ratios of B, O, S, Ar, Sr, Ce, Nd, Hf, Os, Pb, Ra, Th and U can be measured precisely by stable isotope, rare gas, positive and negative thermal ionization and multi-collector ICP mass spectrometers, making it possible to date samples by K-Ar, Rb-Sr, La-Ce, Sm-Nd, Lu-Hf, Re-Os and U-Th-Pb methods. Furthermore, spot analyses (micron scales) of trace elements by SIMS, dating of zircons by the U-Pb method and determination of B-Li-Pb isotope analyses in glass inclusions using HR-SIMS.
These allow us to develop a "comprehensive" understanding of Earth and solar system. Using the sophisticated methods available at ISEI, we can extract maximal information from small samples using a combination of petrology, mineralogy, geochronology and geochemistry based on sample observation and description, classical bulk analyses and state-of-the-art spot analyses for determination of elemental abundances and isotope ratios. We have the capability of analyzing tiny run products of high P-T experiments by the spot analytical techniques and extremely small amounts of powder or minerals from asteroid materials that are expected to be brought by space crafts with the next two years.
Link to The Pheasant Memorial Laboratory
MAKISHIMA, Akio (Professor)
max@misasa.okayama-u.ac.jp
Development of new techniques for element and isotope ratio determinations for deciphering the element distribution in the universe
NAKAMURA, Eizo (Professor)
eizonak@misasa.okayama-u.ac.jp
KISHIMA, Noriaki (Associate Professor)
nkishima@misasa.okayama-u.ac.jp
Specialty: Geochemistry-oriented hydrothermal experiments, including basic/thermodynamic ones
KOBAYASHI, Katsura (Associate Professor)
katsura@pheasant.misasa.okayama-u.ac.jp
Research of geochemical evolution of the Earth by the comprehensive submicroscopic analyses
MORIGUTI, Takuya (Associate Professor)
moriguti@misasa.okayama-u.ac.jp
Research in the crust-mantle recycling by Li and B isotope systematics.
YAMASHITA, Katsuyuki (Associate Professor) kty@misasa.okayama-u.ac.jp
Isotopic study of the Early Solar System materials.
KUNIHIRO, Tak (Research Associate) tkk@misasa.okayama-u.ac.jp
Cosmochemistry: microscopic isotope study
TANAKA, Ryoji (Research Associate) ryoji@misasa.okayama-u.ac.jp
Geochemical evolution of mantle in relation to metallogenic provinces
TSUJIMORI, Tatsuki (Research Associate) tatsukix@misasa.okayama-u.ac.jp
Metamorphic petrology: Integrated studies of subduction-zone processes and tectonics
AKA, Festus Tongwa (Adjunct Researcher) akatongwa@yahoo.com
ISHIKAWA, Akira (JSPS Postdoctoral Fellow, May 2006-: Department of Earth Sciences, Durham University) akira@pheasant.misasa.okayama-u.ac.jp
Reseach in the geochemical evolution of the earth's interior using the mantle-derived xenoliths
KITAGAWA, Hiroshi (COE-21 Postdoctral Fellow) kitagawa@pheasant.misasa.okayama-u.ac.jp
KOH, Jeong-Seon (Researcher, Pusan National University) jskoh812@pusan.ac.kr
Collaborative Researcher (2006-02-28/2007-03-31)
MARUYAMA, Seiji (COE-21 Postdoctral Fellow) maruyama@misasa.okayama-u.ac.jp
OHNO, Sohsuke (Postdoctoral Researcher) oono@misasa.okayama-u.ac.jp
Hypervelocity impact, impact devolatilization
OTA, Tsutomu (COE-21 Postdoctral Fellow) tsutom@pheasant.misasa.okayama-u.ac.jp
Research on subduction-zone metasomatism and its secular variation
SAKAGUCHI, Chie (COE-21 Laboratory Technician) csaka@misasa.okayama-u.ac.jp
Geochemistry of meteorites; Isotopic analyses for extremely trace amounts of Sr and Nd
AKALU, Takele Chekol (Graduate student) takele@pheasant.misasa.okayama-u.ac.jp
BIZUNEH, Tesfaye (Graduate student) tesfayed@misasa.okayama-u.ac.jp
GEMECHU, Melesse (Graduate student) meleseal@misasa.okayama-u.ac.jp
KALININA, Elena (Graduate student) elka@pheasant.misasa.okayama-u.ac.jp
LU, Yinghuai (Graduate student) lucyprc@pheasant.misasa.okayama-u.ac.jp
MALAVIARACHCHI, Sanjeewa (Graduate student) sanjeewa@misasa.okayama-u.ac.jp
MARIN, Ceron Maria Isabel (Graduate student) mariamarin@pheasant.misasa.okayama-u.ac.jp
Across-arc and Along-arc variation in Colombian volcanic arc
MESSO, Charles (Graduate student) messocwa@misasa.okayama-u.ac.jp
SAKYI, Patrick (Graduate student) patsakyi@misasa.okayama-u.ac.jp
SERJLKHUMBE, Amar Amgalan (Graduate student) amaramgalan@pheasant.misasa.okayama-u.ac.jp
TOKESHI, Satoshi (Graduate student) tokeshi@pheasant.misasa.okayama-u.ac.jp
Spatial, temporal and geochemical evolution of volcanism in subduction zone
WATANABE, Masaki (Graduate student) watanabe@pheasant.misasa.okayama-u.ac.jp