THE FIRST Sm–Nd AND U–Pb (ID-TIMS) DATA ABOUT THE AGE OF FORMATION AND METAMORPHISM FROM NORTHERN KAMENNIK Pt–Pd DEPOSIT (FEDOROVO-PANSKY LAYERED COMPLEX, KOLA PENINSULA)

For the first time, complex Sm–Nd and U–Pb isotope-geochronological analyses of gabbronorites associated with Pt-metal mineralization at the Pt–Pd deposit of Northern Kamennik (Fedorovo-Pansky layered complex, Kola Peninsula) were carried out. For barren gabbronorites underlying the main ore body and Lower layered horizon (LLH), an Sm–Nd age of 2498±46 Ma with εNd(T) = −1.4 was obtained, while the age of ore-bearing gabbronorites with elevated PGE and Au content was 2484±26 Ma with εNd(T) = −1.0. The yielded ages are similar and coincide with those of zircons from gabbronorites, for which U–Pb ages of 2497±4 Ma were determined. Isotopic Sm–Nd data on metamorphic minerals (apatite, zoisite) yielded the age of metamorphism of rocks in the complex at 1.96–1.5 Ga, which corresponds to Svekofennian metamorphic events widely represented on the Fennoscandian Shield and industrial PGE-Cu-Ni complexes.