Primitive extraterrestrial materials record the early evolution of the solar system that predated planet formation. The objective of this workshop is to gather experts on cosmochemistry to discuss our current understanding on the early solar system evolution and to explore the future direction of cosmochemistry including the development of new analytical techniques and future sample return missions.


Creative Research Institution (CRIS), Hokkaido University (North Campus) [English / Japanese]

Access to CRIS [English / Japanese]


FEBRUARY 20 (Wed.)
10:00 a.m. Coffee/Tea
10:30 a.m. Welcome address
Session I: What do nuclides tell us about the solar system?
10:40 a.m. Typhoon Lee (ASIAA)
The interplay between nucleosynthesis and cosmic abundance (60 minutes)
11:40 a.m. Ming-Chang Liu (ASIAA)
A lower initial abundance of 41Ca and its implication for the solar system formation (60 minutes)
12:40 p.m. Lunch
1:40 p.m. Lab tour (Isotope microscope / Isotope nanoscope)
Session II: Solid components in the early solar system: mineralogy, petrology, chemistry, formation condition and process
3:10 p.m. Glenn J. MacPherson (Smithsonian Inst.)
High precision micro-chronology of Ca-Al-rich inclusions in the earliest Solar System (60 minutes)
4:10 p.m. Harold C. Connolly, Jr. (CUNY)
Thinking outside the box: Chondrule formation in millimeter-scale environments within the Protoplanetary Disk? (60 minutes)
5:10 p.m. Aicheng Zhang (Hokkaido U.)
Titanium-rich minerals with various Ti3+/Ti_tot values in a CAI from the SaU 290 CH chondrite (30 minutes)
5:40 p.m. Shogo Tachibana (Hokkaido U.)
Kinetics of vapor growth of Mg-silicate at low pressures: Experimental study (30 minutes)
FEBRUARY 21 (Thu.)
9:00 a.m. Coffee/Tea
Session III: Dating of early solar system materials
9:30 a.m. Yuri Amelin (ANU)
Precision of meteorite chronology: the limits to growth (60 minutes)
10:30 a.m. Tsuyoshi Iizuka (U. Tokyo)
Calibration of the Nb-Zr chronometer using U-Pb dated basaltic achondrites (40 minutes)
11:10 a.m. Poster showcase talks
11:20 a.m. Poster session
12:20 p.m. Lunch
Session IV: Future sample return missions from primitive asteroids: O-REx, HY2, and MP-R
1:15 p.m. H. C. Connolly, Jr. / S. Tachibana
OSIRIS-REx: NASA's Sample Return Mission to Asteroid 1999 RQ36 / Sample return from near-Earth C-type asteroid 1999 JU3: Hayabusa-2 (60 minutes)
  Sightseeing tour
FEBRUARY 22 (Fri.)
9:00 a.m. Coffee/Tea
Session V: Instrumentation to unravel the secrets of the ealy solar system evolution
9:30 a.m. Hisayoshi Yurimoto (Hokkaido U.)
Isotope microscope and Isotope nanoscope (60 minutes)
10:30 a.m. Naoya Sakamoto (Hokkaido U.)
Principle of ion imager SCAPS and applications
(30 minutes)
11:00 a.m. Motoo Ito (JAMSTEC)
Search for life beyond Earth: A perspective on life on Earth (40 minutes)
11:40 a.m. Discussion
12:00 p.m. Closing remarks
  Lab tour (Vacuum furnaces), University museum, etc.