Events Upcoming Events Isotope ratio sub-committee 2020 will be held from November 23, 2020 (Monday) to November 25, 2020 (Wednesday) [Co-sponsored by the Japan Mass Spectrometry Society]. The program information will be updated sequentially. Seminar in Integrated Fields of Earth and Planetary Sciences(Yugo Seminar) Friday. 9・10 hr information Special seminar by guest researcher Past Events Contents