Sulphides of Contemporary Land and Submarine Hydrothermal Systems of Kamchatka
V. M. Okrugin, A. M. Okrugina, S. V. Polushin and V. N. Chubarov
Department of Physical-Chemical Methods of Analysis and Mineralogy, Institute of volcanology FEB RAS, Bulvar Piipa 9, Petropavlovsk-Kamchatsky, Russia 683006 (FAX 41500-54723)