Tectonic Framework Analysis of Kiruna Mining District Mineral Systems, Sweden

The Kiruna mining district is significant for its diverse deposits, including iron oxide-apatite (IOA) and iron oxide-copper-gold (IOCG) types. U-Pb zircon geochronology indicates a thermal drive during the early Svecokarelian orogeny from approximately 1920 to 1865 Ma, while the late phase remains less understood.

Lithogeochemistry suggests a volcanic arc environment with distinct Sr and Nd sources from various rocks in different deposits, indicating multiple ore-forming fluids. Structural data provide insights into ore-related veins and remobilization processes, highlighting differences between early and late deposits. This study underscores the utility of a structural framework in deciphering mineral systems in complex tectonic settings.