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suhteliselt palju orgaanilist ainet sisaldava järvemuda kõvastudes tekkinud põlev maavara, fossil coals formed as a result of the decay of organic matter in bottom sediments of water bodies, ископаемые угли, образовавшиеся в результате выгнивания органических веществ в донных отложениях водоемов
roche sapropélienne . Limnoloogia sõnastik. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//lim/roche%20saprop%C3%A9lienne/1/fra (20.06.2026)