Annotated record of the detailed examination of Mn deposits retrieved from Swedish lakes

The various questions regarding the old problem of the genesis of lake and bog ores have, so far, never been the object of a summarizing paper from a present-day research aspect. Moreover, several special questions still remain quite unclear. The present paper therefore intends to closely examine a number of special questions and to provide a summarizing presentation of the whole problem. However, it is obvious that, in several respects, this paper cannot provide a final answer to all these special questions which belong to the most diverse fields of the natural sciences. Nevertheless, it will clearly delineate the problem for future research. (Translated from Swedish by the Translation Bureau (HEB) Multilingual Services Division Department of the Secretary of State of Canada, 1976).