Age of orogenic gold mineralization in the Svecofennian domain is proorly known. Cross-cutting realtionships with dated hos rocks, as well as structural and paleomagnetic evidences suggest that formation most of gold deposits post-dated early deformation. However, some deposits also show recrystallization indicating that the orogenic gold metallogeny may also be diachronous in the Svecofennian domain.
At Jokisivu (Pirkkala province), U-Pb ages from zircon overgrowths and titanite in altered host rocks suggest to 1.81-1.80 Ga age of hydrothermal events leading to the deposition of gold. The mineralization is controlled by second and third order structures along the major NW-SE and SW-NE trending shear zones. Simlar structural setting and orientation also characterize most of the orogenic gold systems in other provinces of the Svecofennian domain. In the Uusima province, the age of gold mineralization along similar structures is estimated to be between 1.82 and 1.79 Ga.