Petrology of Gabbroides and Isotope Signature of Sulfide Mineralization from Fedorov-Pansky Layered Mafic Intrusion, Kola Peninsula, Russia

• Published in: GEOCHR
• Main Authors: Huber, Milosz, Halas, Stanislaw, Piestrzyński, Adam
• Format: Article in Journal/Newspaper
• Language: English
• Published: Walter de Gruyter GmbH 2009
• Subjects: Earth and Planetary Sciences (miscellaneous); Kola Peninsula; kola peninsula
• Online Access: http://dx.doi.org/10.2478/v10003-009-0004-6; https://www.sciendo.com/pdf/10.2478/v10003-009-0004-6

Petrology of Gabbroides and Isotope Signature of Sulfide Mineralization from Fedorov-Pansky Layered Mafic Intrusion, Kola Peninsula, Russia Samples from Fiodoro-Pansky massif were investigated by polarized light microscopy, EDS electron microscopy and isotope ratio mass spectrometry. We have observed four-stage ore mineralization: (1) magmatic Fe-Ti-oxides, (2) sulfide-ferrous oxide, (3) hydrothermal Cu-Ni-sulfide with haycokite, talnakhite and galena admixture, (4) tiosulfates formed from pyrrhotite. A few sulfide samples from generations (2) and (4) were investigated isotopically. The second generation is isotopically homogenous with δ 34 S close to zero, whilst the third generation shows significantly negative δ 34 S values.