Search

Results:

Vol. 12 (2009 year), No. 3

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

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.

(in Russian, стр.17, fig. 8, tables. 3, ref 14, Adobe PDF, Adobe PDF 0 Kb)

Vol. 15 (2012 year), No. 2

Chernyavsky A.V., Voytekhovsky Yu.L., Voloshin А.V., Savchenko E.E.
Ore minerals of the Panarechka epithermal low-sulphide Au-Ag deposit

On the territory of the Panarehka volcanic-tectonic structure the NW and SE blocks have been defined according to the mineralogical data. The former relates to the Au-Te deposit type novel for the Kola Peninsula, the latter is of the gold-quartz type. The NW block reveals a great variety of ore minerals of the Au-Ag-Te and Bi-Te-(S+Se) systems, sulphides and sulphosalts.

(in English, стр.6, fig. 3, tables. 5, ref 8, Adobe PDF, Adobe PDF 0 Kb)