Author's Organization:Department of Geology and Mineralogy,Faculty of Science,Hokkaido University:Department of Earth and Planetary Sciences,Kyushu University Geological Survey of Japan,Hokkaido Branch Geological Laboratory of Geoscience Co.,Ltd
Published: August 15, 1993Received: January 25, 1993Available on J-STAGE: April 11, 2008Accepted: June 24, 1993
Advance online publication: -
Revised: -