Our goal is to describe atoms that represent element distribution of the Solar system that are continuously evolving from the beginning to the future. To understand the Solar system with spatial scale 1013 m, we analyze planetary materials that are from different origin with different processes, and determine element and isotope compositions with spatial resolution down to 10-9 m.
Planetary materials besides terrestrial ones are the rolling stones that are sampled with locality unknown. To fill the important missing information, we developed a protocol that is to determine multiple-elements, multiple-isotopes, and multiple-phases. We referred the approach to be 'comprehensive' and construct an analytical system that let us do so. The system acts as a gigantic machine with numerous instruments glued by analytical methods and disciplined people. The disciplines and samples would be taken over to the next generation to sustain our science.
We work as a team and prefer arguments scientifically.
Terrestrial planets in our solar system formed in the protoplanetary disk about 4.6 billion years ago. As the disk cooled, planetesimals and planetary embryos formed, and they repeatedly collided and grew, eventually forming terrestrial planets. Since primitive meteorites contain primitive dust and fragments of planetesimals, analysis of these materials can provide direct information on the formation process of terrestrial planets..
David O. Zakharov, Ryoji Tanaka, David A. Butterfield, Eizo Nakamura. A New Insight Into Seawater-Basalt Exchange Reactions Based on Combined δ18O—Δ′17O—87Sr/86Sr Values of Hydrothermal Fluids From the Axial Seamount Volcano, Pacific Ocean, Frontiers in Earth Science, 9, 691699 (2021).
Dilan M.Ratnayake, Ryoji Tanaka, Eizo Nakamura. Novel nickel isolation procedure for a wide range of sample matrices without using dimethylglyoxime for isotope measurements using MC-ICP-MS, Analytica Chimica Acta, 1181, 338934 (2021).
Tak Kunihiro, Tsutomu Ota, Masahiro Yamanaka, Potiszil Christian, Eizo Nakamura. The trace element composition of chondrule constituents: Implications for sample return methodologies and the chondrule silicate reservoir, Meteoritics and Planetary Science (2021).
October 12, 10:00 AM in 3F Seminar Room
Seminar by Havishk Tripathi
October 5, 10:00 AM in 3F Seminar Room
Seminar by Wei Zhang
September 28, 10:00 AM in 3F Seminar Room
Seminar by Rahul Kumar
September 21, 10:00 AM in 3F Seminar Room
Seminar by Nurcan Kucukarslan
September 7, 10:00 AM in 3F Seminar Room
Seminar by Dilan Ratnayake
August 24, 10:00 AM in 3F Seminar Room
Seminar by Avramescu Maya-Liliana
August 10, 10:00 AM in 3F Seminar Room
Seminar by Tulibonywa MWAISUBA Tulibako