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Nerovich L.I., Bajanova T.B., Savchenko E.E., Serov P.A., Yekimova N.A.
New data on geology, petrography, isotope geochemistry and PGE mineralization of the Monchetundra intrusion
Abstract. The paper presents new Sm-Nd isotope-geochronological and geochemical data for the ore-bearing rock of the Fedorovo-Pansky Palaeoproterozoic layered complex (Kola Peninsula) and Nottrask layered intrusion (Sweden). For the first time, Sm-Nd dating procedure has applied sulphides as new minerals-geochronometers that allow direct dating of ore-forming events. The resultant ages of 2475В±37 Ma for the gabbronorite of the Fedorovo-Pansky complex and of 1740В±27 Ma for the gabbro of the Nottrask intrusion have been interpreted as the time of ore-forming processes in the two intrusions. Thus, it has been demonstrated that sulphides may be used as minerals-geochronometers for Sm-Nd isotope-geochronological investigations.
Keywords: cumulative stratigraphy, U-Pb dating, Sm-Nd isotopy, REE fractionation, PGE mineralization
Printed reference: New data on geology, petrography, isotope geochemistry and PGE mineralization of the Monchetundra intrusion / L.I. Nerovich, T.B. Bajanova, E.E. Savchenko, P.A. Serov, N.A. Yekimova // Vestnik of MSTU. 2009. V. 12, No 3. P. -.
Electronic reference: New data on geology, petrography, isotope geochemistry and PGE mineralization of the Monchetundra intrusion / L.I. Nerovich, T.B. Bajanova, E.E. Savchenko, P.A. Serov, N.A. Yekimova // Vestnik of MSTU. 2009. V. 12, No 3. P. -. URL: http://vestnik.mstu.edu.ru/v12_3_n36/articles/11_nerov.pdf.
