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6900595 
Journal Article 
Kedonojankulma: a recently discovered Palaeoproterozoic porphyry-type Cu-Au deposit in Southern Finland 
Tiainen, M; Karkkainen, N; Koistinen, E; Pakkanen, L; Sipila, P; , 
2011 
EDICIONES UNIV CATOLICA NORTE 
ANTOFAGASTA 
392-394 
WOS:000309699400128 
The Kedonojankulma Cu-Au prospect represents a new deposit style in the southern Svecofennian Arc Complex of southern Finland. The occurrence is hosted by a subvolcanic quartz-plagioclase-porphyritic phase of a tonalite intrusion. Several features that are typical of porphyry Cu deposits have been observed. Most prominent is the metal zoning, with Cu-Au-Ag-As-Mo in the core and Zn in the outer zone. Various alteration assemblages related to mineralization have been identified, with sericitization, epidotization and silicification being common. The Kedonojankulma occurrence has a complex mineralogy, including various Cu, Ag, Au, Bi, Mo, Sb, Sn, Zn and Pb minerals. Major ore minerals are chalcopyrite, arsenopyrite, bornite, chalcocite, sphalerite and pyrite. The mineralization usually occurs as fine-grained disseminations in sheared and fractured zones of the intrusion. Highest metal contents in one-meter samples of drill core are 2.4% Cu, 8 ppm Au, 120 ppm Ag, 0.15% Sb and 0.08% Mo, 0.33% Bi and 1.27% Zn. 
Barra, F; Reich, M; Campos, E; Tornos, F; 
978-956-287-329-1 
11th SGA Biennial Meeting on Let's Talk Ore Deposits 
Antofagasta, CHILE