TY - SER ED - National institute of advanced industrial science and technology TI - Chishitsu ch osa kenky u h okoku =: Bulletin of the Geological Survey of Japan SN - 1346-4272 CY - Ibaraki PB - n. e. KW - Geology KW - Japan KW - Periodicals N1 - Title from cover UR - www.gsj.jp/ ER -