Physical-Chemical Study of the Vein Carbonates of the Vorontsovskoe Gold Deposit
A carbonate (calcite and dolomite) vein mineralization of the ore-bearing rocks of the Vorontsovskoe gold deposit (Northern Urals) was studied. Isotopic analysis of carbonates shows a trend toward the lightening of C and O isotopic composition from limestones to hydrothermal altered and magmatic roc...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Perm Sate National Research University
2018-03-01
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| Series: | Vestnik Permskogo Universiteta: Seriâ Geologiâ |
| Subjects: | |
| Online Access: | http://geology-vestnik.psu.ru/index.php/geology/article/view/229 |
| Summary: | A carbonate (calcite and dolomite) vein mineralization of the ore-bearing rocks of the Vorontsovskoe gold deposit (Northern Urals) was studied. Isotopic analysis of carbonates shows a trend toward the lightening of C and O isotopic composition from limestones to hydrothermal altered and magmatic rocks. Electron Paramagnetic Resonance study of carbonates showed that they differs in a width of Mn2+ spectrum because of structure defects. The C and O composition lightening corresponds to the carbonates with strong defects of structure which was formed by an ore-bearing fluid. In the carbonates, 3 types of rare-earth elements composition trends were observed: 1 – with negative Ce-anomaly; 2 – with positive Eu-anomaly; 3 – without anomalies. A negative Ceanomaly possibly is related to the marine sediments, a positive Eu-anomaly suggests a magmatic origin of hydrothermal fluid. |
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| ISSN: | 1994-3601 2313-4798 |