Metallogenic zones and metallic mineral deposits in Finland; explanation to the metallogenic map of Finland

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Authors:Saltikoff, Boris; Puustinen, Kauko; Tontti, Mikko
Author Affiliations:Primary:
Geological Survey of Finland, Finland
Source:Special Paper - Geological Survey of Finland, Vol.35, 66p. Publisher: Geological Survey of Finland, Espoo, Finland. ISSN: 0782-8535
Publication Date:2006
Note:In English. 820 refs.
Summary:This paper contains explanations to the Metallogenic Map of Finland 1:1 000 000 (Saltikoff et al. 2002). The aim is to provide the reader with a general description of the individual metallogenic zones and with references regarding the present knowledge of the specified metallogenic zones and individual deposits and occurrences in Finland. A metallogenic map of a region depicts the natural metallogenic zones (linear, sub-linear), provinces and fields (isometric), i.e. the areas of mineral occurrences of certain types. The map is based on knowledge about the existing mineral occurrences and favourable geological structures. The present metallogenic map of Finland is mainly empiric, and the metallogenic groups are defined as "clusters of similar mineralisations", without precise specification of the nature of the "similarity". In the explanation report, the word mineralisation is used as a general term for a mineralised body. The mineralisations are divided into mineral deposits, occurrences and showings according to their volume and are classified on the map in respect to their metal content and morphological type. The metallogenic zones and provinces are classified according to the metal content of the respective mineralisations. The legend and classification of metallogenic zones and provinces and mineralisations are largely based on the principles of the Metallogenic Map of Europe of 1973, e.g. the term "morphological type of a deposit" is used as the position of the deposit in relation to the hosting strata rather than as the geometric shape of the deposit. In the report, the metallogenic zones and provinces are individually described in terms of their location, geological setting, the most important or typical mineralisations and the most popular genetic concepts. At the end of the paper there are also descriptions of some important single deposits not belonging to any of the described metallogenic groups. The geological base material for the Metallogenic Map comes from the Bedrock Map of Finland 1:1 000 000 of 1997 and the mineralisation data mainly from the Ore Deposit Database MALMIKANTA of the Geological Survey of Finland. The descriptions of the metallogenic zones and deposits in the report are accompanied by a wide list of references containing selected papers in widely used languages, English, German and in some instances French. Papers printed in national languages (Finnish or Swedish) are included only if they contain a substantial summary in English or German or if they have fundamental information. When published sources were not available, information was obtained via personal communications with informants also mentioned in the text.
Sections:Economic minerals and ore deposits
Subsections:Metallic deposits: regional
Subjects:Base metals; Cobalt ores; Copper ores; Explanatory text; Gold ores; Intrusions; Layered intrusions; Lead ores; Mapping; Metal ores; Metallogenic provinces; Metallogeny; Metals; Mineral deposits, genesis; Nickel ores; Niobium ores; Platinum group; Polymetallic ores; Precambrian; Zinc ores; Zoning; Europe; Fennoscandia; Fennoscandian Shield; Finland; Scandinavia; Western Europe
Coordinates:N594500 N700000 E0314500 E0190000
Abstract Numbers:06M/791
Record ID:2006077295
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute.
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