Author's Organization:Earth Science Laboratory,Faculty of School Education,Hiroshima University Department of Earth and Planetary Sciences,Faculty of Science,Nagoya University Geological Survey of Japan Geological Survey of Japan
Published: July 15, 1994Received: November 11, 1993Available on J-STAGE: April 11, 2008Accepted: April 18, 1994
Advance online publication: -
Revised: -