Zircon U-Pb dating, Hf analysis from the Horoman perdiotite –age constraint for lithospheric process, and tectonic juxtaposition of collision root zone-

Kazuaki Okamoto1, Keewook Yi2, Kuo-Lung Wang3 and Sun-Lin Chung3, (1)Saitama University, Saitama, Japan, (2)KBSI Korea Basic Science Institute, Division of Earth and Environmental Sciences, Seoul, Korea, Republic of (South), (3)Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan