About YOSHIHARA A
About Univ. Tokyo, Tokyo, JPN
About HAMANO Y
About Univ. Tokyo, Tokyo, JPN
About Physics of the Earth and Planetary Interiors
About Archeozoic Era
About Northwest Territories
About Paleomagnetism,rock magnetism
About カナダ
About 地域
About 輝緑岩
About 岩脈
About 始生代
About 地球磁場強度