Conference The Fourth International Workshop on Orogenic Lherzolites and Mantle Processes, Samani, Hokkaido, Japan, Geological Society of Japan, Japanese Association of Mineralogists, Petrologists, and Econ, E. Takazawa Department of Geology, Niigata University, 2-8050 Ikarashi, Niigata 950-2181 JAPAN, tel: 25-262-6114, fax: 25-262-6194, E-mail: takazawa@sc.niigata-u.ac.jp, 03.08.2002 26.08.2002.