Dispersed mineralization in granitic rocks in the Dukat ore field,the Russian Northeast: Sources and relationship with epithermal gold-silver and silver-base-metal ores |
| |
| Authors: | L G Filimonova N V Trubkin A V Chugaev |
| |
| Institution: | 1.Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry,Russian Academy of Sciences,Moscow,Russia |
| |
| Abstract: | The dispersed mineralization in the Late Cretaceous leucogranite of the Dukat ore field comprises melanocratic high-sulfide
epidote-feldspar, pyroxene-feldspar and low-sulfide allanite-fluorite-feldspar inclusions in greisenized intrusions. The silver-base-metal
mineralization is composed of pyrite, pyrrhotite, small particles of Pb, Zn, Sn, Ag, and Sb sulfides and oxides, their native
species, and intermetallic compounds; the rare-metal mineralization consists of REE, Th, U, Ti, Zr, Nb, Ta, and W oxides,
silicates, and aluminosilicates. The isotopic Nd, Sr, and Pb isotopic compositions and geochemical characteristics of the
mineralized inclusions, rock-forming minerals of granitoids, hydrothermal minerals of preore metasomatic propylites and orebodies
at the Dukat deposit show that their components have been taken from heterogeneous domains of the Paleozoic juvenile continental
crust of the Siberian Platform. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
