Isotopic age and heterogeneous sources of gabbroaEuro'anorthosites from the Patchemvarek massif, Kola Peninsula

摘要

New UaEuro'Pb (SHRIMP II) data on the age (2661.8 +/- 7.1 Ma) and isotopic (SmaEuro'Nd) composition of the Patchemvarek gabbroaEuro'anorthosite massif located in the junction zone between the Neoarchean Kolmozero-Voron'ya greenstone belt and Keivy paragneiss structure are discussed. The established age and geologicalaEuro'tectonic position of gabbroaEuro'anorthosites allow the prognostic metallogenic estimate of TiaEuro'VaEuro'Fe mineralization to be extended to the entire Kolmozero-Voron'yaaEuro'Keivy infrastructural zone of the KolaaEuro'Norwegian province of the Fennoscandian shield.