Ore-forming Сonditions of the Blagodat Gold Deposit in the Riphean Metamorphic Rocks of the Yenisey Ridge According to Geochemical and Isotopic Data
URI (for links/citations):http://elib.sfu-kras.ru/handle/2311/1285
Sazonov, Anatoly M.
Gertner, Igor F.
Zvyagina, Elena A.
Tishin, Platon A.
Poleva, Tatyana V.
Leontyev, Sergey I
Kolmakov, Yuri V.
Krasnova, Tatyana S.
Neodymium and strontium isotopic composition and rare earth elements (REE) distribution pattern have been determined in whole rocks and minerals were separated from host metamorphic rocks and disseminated sulfide ores of the Blagodat gold deposit. Isotopic data are given to construct few isochrones that could be reflected an age of main stages of metamorphic and metasomatic alteration in rocks varieties during a successive accumulation of gold in structural traps. The significant temporal range in the forming of the studied rocks can be interpreted as an evidence of multi-stage tectonic destruction accompanying with trust-folding processes, shear deformations and development of local fracture zones that had place from the Late Riphean to Middle Paleozoic time. According to isotopic data basic ore-forming processes were realized in the relatively narrow interval from 690 to 750 Ma that correspond to a beginning of continental rifting on the western margin of Siberian craton. Chemistry and trace element distribution are closed for host and auriferous schists and mainly showed differences in the composition initial sedimentary units. The middle negative value εNd (from -14 to -16) and very high positive value εSr (from +570 to +725) are mostly corresponded to that of upper continental crust matter. The role of synchronic granite intrusions in the studied area can be only estimated due to a generation of thermal energy and crustal fluids.
Metadata:Show full item record
Showing items related by title, author, creator and subject.
Gladyshev, M. I.; Makhutova, O. N.; Kravchuk, E. S.; Anishchenko, O. V.; Sushchik, N. N. (2016-01)We tested a comparatively new method of tracing of natural food webs, compound-specific isotope analysis (CSIA) of fatty acids (FA), using laboratory culture of Daphnia galeata fed Chlorella vulgaris and Cryptomonas sp. ...
Гладышев, М. И.; Махутова, О. Н.; Кравчук, Е. С.; Анищенко, О. В.; Сущик, Н. Н. (2016-01)tWe tested a comparatively new method of tracing of natural food webs, compound-specific isotopeanalysis (CSIA) of fatty acids (FA), using laboratory culture of Daphnia galeata fed Chlorella vulgaris andCryptomonas sp. In ...
Гладышев, М.И.; Gladyshev, Michail I. (Сибирский федеральный университет. Siberian Federal University., 2009-12)Theory and practice of analyses of stable isotopes of carbon and nitrogen for food trophic studies in aquatic ecology are regarded basing on literature, published primarily in the last decade. Methods of measuring of the ...
Трассировочный анализ кривых с помощью метода лазерной абляции с индуктивно связанной плазмой масс-спектрометрией (LA-ICP-MS): на примере агатов из Нового Костела, Польша Мёкел, Р.; Möckel, Robert; Гетц, Й.; Götze, Jens; Сергеев, С. А.; Sergeev, Sergey A.; Капитонов, И. Н.; Kapitonov, Igor N.; Адамская, Е. В.; Adamskaya, Elena V.; Гольдзин, Н. А.; Goltsin, Nikolay A.; Веннеман, .; Vennemann, Torsten (Сибирский федеральный университет. Siberian Federal University., 2012-02)trace elements in agate from Permian volcanics (Nowy Kościoł, Poland) in low concentrations and with high spatial resolution. The used LA-ICP-MS system consists of a DUV 193 laser ablation system linked to a Thermo Finnigan ...
Trace-Element Analysis by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS): a Case Study for Agates from Nowy Kościoł, Poland Mockel, Robert; Götze, Jens; Sergeev, Sergey A.; Kapitonov, Igor N.; Adamskaya, Elena V.; Goltsin, Nikolay A.; Vennemann, Torsten (Сибирский федеральный университет. Siberian Federal University., 2009-06)Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) was applied to detect trace elements in agate from Permian volcanics (Nowy Kościoł, Poland) in low concentrations and with high spatial resolution. ...