Zobrazeno 1 - 10
of 46
pro vyhledávání: '"E. V. Bibikova"'
Publikováno v:
Stratigraphy and Geological Correlation. 24:105-117
As a result of studying the Vetreny Belt greenstone structure (the southeast of the Baltic Shield), zircons from terrigenous deposits of the Toksha Formation, underlying the section of the sedimentary-volcanogenic complex, and zircons of the Vetreny
Publikováno v:
Stratigraphy and Geological Correlation. 23:555-567
Detrital zircons of the ancient metasedimentary rocks bear important information about the early crust of the Earth. In this work, the early crust in the west of the Ukrainian Shield was studied using U-Pb dating of terrigenous zircons from metasedim
Autor:
L. P. Popova, Stefan Claesson, M. M. Fugzan, A. A. Fedotova, E. V. Bibikova, A. V. Postnikov, Svetlana Bogdanova, T. I. Kirnozova
Publikováno v:
Stratigraphy and Geological Correlation. 23:1-23
We present the results of isotope-geochronological study of metasedimentary rocks of the Bolshecheremshanskaya Formation of the Volgo-Uralian segment of the East European Craton carried out to identify their protoliths. 16 samples of high-alumina gne
Autor:
Sergey Sergeev, Sergey G. Skublov, S.L. Presnyakov, Yu. S. Egorova, V. P. Chekulaev, A. V. Yurchenko, Sh. K. Baltybaev, S. B. Lobach-Zhuchenko, G. V. Artemenko, E. S. Bogomolov, N. A. Arestova, V. V. Balagansky, E. V. Bibikova
Publikováno v:
Precambrian Research. 252:71-87
The Orekhov–Pavlograd Zone (OPZ), which is located in the Ukrainian Shield, represents the reworked western margin of the Archaean Azov Province and separates it from the Archaean Middle Dnieper Province. In the Vasilkovka area, which is located in
Autor:
T. I. Kirnozova, M. M. Fugzan, E. V. Bibikova, V. P. Kovach, E. V. Tolmacheva, Yu. V. Plotkina, Ch. Erdenezhargal, I. K. Kozakov, D. A. Lykhin
Publikováno v:
Petrology. 22:480-506
The Early Caledonian Central Asian Orogenic Belt hosts fragments of continental blocks with Early and Late Precambrian crystalline basement. One of the structures with an Early Precambrian basement was thought to be the Dzabkhan microcontinent, which
Publikováno v:
GFF. 136:410-428
To assess the age and origin of the metasedimentary migmatites in southernmost Sweden and their relationships with the Mesoproterozoic granitoid magmatism in the area, we have dated migmatite zircon using the secondary ion mass spectrometry U-Pb meth
Autor:
L M Stepanyuk, A. A. Fedotova, L S Il'insky, T. I. Kirnozova, M. M. Fugzan, L. V. Shumlyansky, Stefan Claesson, E. V. Bibikova
Publikováno v:
Geochemistry International. 51:87-108
Zircons from the oldest magmatic and metasedimentary rocks of the Podolia domain of the Ukrainian shield were studied and dated by U-Pb method on a NORDSIM secondary-ion mass spectrometer. The age of zircon cores in the enderbite gneisses taken in th
Autor:
E. V. Bibikova, V. I. Lebedev, M. M. Fugzan, V. P. Kovach, T. I. Kirnozova, V. V. Yarmolyuk, Yu. V. Plotkina, A. M. Kozlovskii, Ch. Erdenezhargal, I. K. Kozakov
Publikováno v:
Stratigraphy and Geological Correlation. 20:231-239
Fragments of continental blocks or microcontinents are represented in the Early Caledonian orogenic area of Central Asia (or Early Caledonian superterrane); the largest of these are the Dzabkhan and Tuva-Mongolian microcontinents, with Early and Late
Publikováno v:
Stratigraphy and Geological Correlation. 20:125-138
The results of isotopic-geochronological investigations of detrital zircons from metasediments of the Fedorovka structure in the Azov Domain of the Ukrainian Shield by SIMS and LA-ICP-MS methods are considered. The data obtained are compared with the
Autor:
T. I. Kirnozova, V. P. Kovach, E. V. Bibikova, Yu. V. Plotkina, V. V. Yarmolyuk, N. Yu. Zagornaya, M. M. Fugzan, A. M. Kozlovsky, V. I. Lebedev, G. Eenjin, I. K. Kozakov, Ch. Erdenejargal
Publikováno v:
Petrology. 19:426-444
The oldest crystalline complexes of the Early Caledonian superterrane of Central Asia were formed in the Early Precambrian. They are exposed in the basement of microcontinents, which represent old cratonic fragments. Among the latters are the crystal