6The Norrbotten county is rich in apatite-Fe ores of the ”Kiruna-type ” and several investigations have been focused on this ore type, although the genetical aspects are still a matter of debate (cf. Nyström & Henríquez, 1994). Another widespread ore type is the Cu-Au mineralizations, which may...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.461.511 http://www.ltu.se/cms_fs/1.5007!/f0167b4a.pdf |
| Summary: | 6The Norrbotten county is rich in apatite-Fe ores of the ”Kiruna-type ” and several investigations have been focused on this ore type, although the genetical aspects are still a matter of debate (cf. Nyström & Henríquez, 1994). Another widespread ore type is the Cu-Au mineralizations, which may be sub-divided into an epige-netic and a syngenetic group (Martinsson, 1997). Although lim-ited research has been devoted to this ore type, both these groups of deposits apparently formed from highly, saline hydrothermal fl uids, but they differ with respect to metal association and altera-tion features. The timing of the Cu-Fe-Au ore-forming event(s) is poorly understood, and the present work is directed at reaching better temporal constraints on ore-forming processes in northern Sweden. The geology of the Norrbotten county forms part of the Fen-noscandian shield and involves both a partly exposed Archaean |
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