Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Sergey Zhmodik"'
Autor:
Olga Kiseleva, Pavel Serov, Evgenia Airiyants, Aleksey Travin, Dmitriy Belyanin, Brain Nharara, Sergey Zhmodik
Publikováno v:
Minerals, Vol 12, Iss 1, p 92 (2022)
We report the first radiogenic Nd-Sr isotope data in the magmatic rocks island-arc ophiolite assemblage from the middle branch of the East Sayan ophiolite complexes to better constrain geodynamic processes in this segment of the CAOB in southern cent
Externí odkaz:
https://doaj.org/article/c1dc5c13b4ab4b07a349084408ed1160
Autor:
Igor Ashchepkov, Sergey Zhmodik, Dmitry Belyanin, Olga N. Kiseleva, Nikolay Medvedev, Alexei Travin, Denis Yudin, Nikolai S. Karmanov, Hilary Downes
Publikováno v:
Minerals, Vol 10, Iss 5, p 404 (2020)
The 650–621 Ma plume which impinged beneath the Siberian craton during the breakup of Rodinia caused the formation of several alkaline carbonatite massifs in craton margins of the Angara rift system. The Beloziminsky alkaline ultramafic carbonatite
Externí odkaz:
https://doaj.org/article/f50bcfebad7641ceb26a5c3fc56d7b92
Autor:
Sergey Zhmodik, Igor Ashchepkov, Olga Kiseleva, Dmitry Belyanin, Irina Sotnikova, Nikolai Medvedev, Nikolai Karmanov
The Belo-Ziminsky alkaline-ultrabasic carbonatite massif contain dolomite, and calcite ankerite carbonatites essential part , syenites, melteigites and iolites cut by aillikite dikes of several generations (Ashchepkov et al., 2020; Doroshkevich et al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26e9db7d873e1d14001c63c5454df64c
https://doi.org/10.5194/egusphere-egu23-16857
https://doi.org/10.5194/egusphere-egu23-16857
Autor:
V. A. Ponomarchuk, Elena V. Lazareva, N.L. Dobretsov, Sergey Zhmodik, A. V. Bryanskaya, N. S. Karmanov, B. Yu. Saryg-ool, I. S. Kirichenko, A. V. Tolstov
Publikováno v:
Doklady Earth Sciences. 496:135-138
Data indicating the important role of microorganisms in the redistribution of REEs in the weathering crust and the decisive role in the concentration of REEs during the formation of ores in the upper ore horizon of the Tomtor field are obtained. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f477433fb72e2e9e0edac2c74dfbd386
https://doi.org/10.1134/s1028334x21020057
https://doi.org/10.1134/s1028334x21020057
Publikováno v:
Russian Geology and Geophysics. 62:109-120
––Comprehensive studies of structural geology and metallogeny, taking into account the authors’ previous works started as early as the last century, have shown that the southeastern part of East Sayan formed mainly in the Neoproterozoic–early
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77b4ccf00ffe441b9ea8a209ec5be0cb
https://doi.org/10.2113/rgg20204283
https://doi.org/10.2113/rgg20204283
Publikováno v:
Russian Geology and Geophysics. 62:44-67
––The use of satellite-geological information permits generalization of studies of various active geologic processes in a new way. As reference examples, we consider geologic regions extensively covered by research with our contribution. The join
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b90e97d1ca7d7f3cd96096217aabfc4
https://doi.org/10.2113/rgg20204227
https://doi.org/10.2113/rgg20204227
Autor:
A. V. Tolstov, N.L. Dobretsov, A. V. Travin, Elena V. Lazareva, N. S. Karmanov, I. N. Myagkaya, V. A. Ponomarchuk, Sergey Zhmodik
Publikováno v:
Doklady Earth Sciences. 495:884-887
Among the rich REE–Nb ores of the upper ore horizon of the Tomtor deposit, under the Jurassic deposits (borehole 324, interval 47–62 m), ultrapotassiс rocks (feldspar porphyrite), consisting of more than 90% potassium feldspar (K-feldspar), are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cf56ef4e90bf55a44666b0db06a57f6
https://doi.org/10.1134/s1028334x20120053
https://doi.org/10.1134/s1028334x20120053
A study of chrome-spinels and PGE mineralization (PGM) from the podiform chromitites has been carried out on the area of four locations of the Ospa-Kitoy ophiolite massif (northern and southern branches East Sayan ophiolite). It has been established
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38e05c292a19c6386a82dc8b10ae1df7
https://doi.org/10.5194/egusphere-egu22-1260
https://doi.org/10.5194/egusphere-egu22-1260
Publikováno v:
Geotectonics. 54:356-365
The paper discusses the results of petrogeochemical and geochronological studies of the Tainsky granitoid stock containing the Tainsky gold deposit in the East Sayan. The Tainsky granitoid stock intrudes through ultrabasites of the Ospa-Kitoi ultraba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3382373c240c1e6fb941a07cf3dde2ed
https://doi.org/10.1134/s001685212002003x
https://doi.org/10.1134/s001685212002003x
Autor:
Elena V. Lazareva, A. N. Pyryaev, N.L. Dobretsov, Sergey Zhmodik, A. V. Tolstov, N. S. Karmanov, V. A. Ponomarchuk
Publikováno v:
Doklady Earth Sciences. 490:76-80
Carbonates of the Tomtor complex of ultramafic alkaline rocks and carbonatites (the northern part of the Republic of Sakha Yakutia) are distinguished by a wide range of carbon isotopic composition δ13C from +2 to –59.9‰. The geological position,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f6c3d506a05f4c7a22b9506cbf5ad88
https://doi.org/10.1134/s1028334x20020117
https://doi.org/10.1134/s1028334x20020117