Central Lapland greenstone belt. Albitisation, structures and known gold depostis and occurrences. Black dots are gold occurrences; Red domains indicate albitised rocks; Thin red lines are faults and shear zones; No albite indicated by blue dots except where crossed by a structure (thin red line). Yellow shades turn to green when getting further away from the faults, shear zones and albites, and are restricted by the presence of non-albitised rocks. Albitisation information shown is based on drill core and outcrop. Note the positive correlation between gold and albitisation. Exceptions to that correlation include mainly occurrences which probably are not orogenic gold but of some other genetic class of mineralisation. Image by Johanna Torppa, GTK.
(Last update: 20.05.2020)