Zobrazeno 1 - 10
of 35
pro vyhledávání: '"E. N. Lepekhina"'
Autor:
S. Yu. Stepanov, Anton V. Kutyrev, E. N. Lepekhina, A. V. Antonov, M. E. Kutyreva, L. N. Sharpenok
Publikováno v:
Geochemistry International. 59:559-576
The article presents the first U-Pb (SHRIMP–II) zircon age data on dikes cutting dunite of the Kamenushinsky dunite–clinopyroxenite–gabbroic massif in the Ural Platinum Belt. The dikes are made up of gabbro-pegmatite, hornblendite, and granite,
Autor:
E. F. Letnikova, A. I. Brusnitsyn, S. I. Shkolnik, Alexander V. Ivanov, E. N. Perova, E. N. Lepekhina
Publikováno v:
Doklady Earth Sciences. 497:195-199
Isotope study of ore-bearing rocks at Fe–Mn rift deposits of the Atasu and Zhezdy (Dzhezdy) ore districts in Central Kazakhstan has been carried out for the first time. The Atasu felsic effusive rocks (Ushkatyn-1 deposit), synchronous to ore genesi
Autor:
Dmitry P. Gladkochub, Elena I. Demonterova, P.A. L’vov, T.V. Donskaya, E. N. Lepekhina, Z.L. Motova, A. M. Mazukabzov
Publikováno v:
Russian Geology and Geophysics. 61:951-963
—We performed geological, geochronological, geochemical, and isotope-geochemical studies of igneous rocks of the Ust’-Ignok gabbrodiorite massif in the Urik–Iya graben of the Siberian craton and summarized the obtained and published data on ear
Autor:
Sergey Sergeev, Boris Belyatsky, E. N. Lepekhina, I.N. Kapitonov, A. A. Arzamastsev, A. V. Antonov, N. V. Rodionov, Yu.S. Balashova
Publikováno v:
Russian Geology and Geophysics. 59:962-974
Results of this study of titanite samples collected from silicate rocks and apatite–nepheline–(sphene) ores from Paleozoic polyphase alkaline nepheline syenite complexes of the Khibiny and Lovozero massifs revealed the possibility of their in-sit
Autor:
Oleg Petrov, Boris Belyatsky, I. L. Nedosekova, Sergey Shevchenko, N. V. Rodionov, A. V. Antonov, Sergey Sergeev, E. N. Lepekhina
Publikováno v:
Doklady Earth Sciences. 481:1079-1085
The results of local U–Th–Pb-SIMS-SHRIMP-II analysis of the collection of pyrochlores from Nb rare-metal deposits of the Ilmeny–Vishnevogorsky alkaline complex are discussed. Independently of the chemical composition, the host rocks, and the st
Autor:
M. Cho, J. Kim, T.V. Donskaya, Dmitry P. Gladkochub, V. S. Fedorovsky, Elena I. Demonterova, Eugene V. Sklyarov, A. M. Mazukabzov, W. Cheong, Sergey Sergeev, E. N. Lepekhina
Publikováno v:
Gondwana Research. 42:243-263
The Olkhon terrane is a part of the Early Palaeozoic accretionary-collisional system in the northern Central Asian Orogenic Belt (CAOB). The terrane was produced by an Ordovician collision as a collage of numerous chaotically mixed tectonic units com
Publikováno v:
Petrology. 24:543-561
This paper reports the results of geological, geochronological, and isotope geochemical investigations of two premetamorphic granite massifs of the Goloustnaya block of the Baikal salient of the basement of the Siberian craton and granite gneisses fr
Autor:
V. V. Shchiptsov, Boris Belyatsky, E. N. Lepekhina, A. V. Antonov, Maria Bogina, A. V. Chistyakov, Evgenii Sharkov
Publikováno v:
Petrology. 23:259-280
The paper presents a study of zircon from the Middle Paleoproterozoic Elet’ozero high-Ti layered ultramafic-mafic-alkaline intrusive complex with carbonatites and Sm-Nd isotope system of rock-forming minerals in ferrogabbro sample from this complex
Autor:
E. N. Lepekhina, V.Yu. Kiseleva, A. N. Berzina, A. P. Berzina, Tamara B. Bayanova, S. V. Palesskii, V.O. Gimon, R.Sh. Krymskii
Publikováno v:
Russian Geology and Geophysics. 56:446-465
Two intrusive complexes are recognized in the Zhireken deposit: Amanan and ore-bearing porphyry. According to the ages obtained by U–Pb zircon dating (Amanan complex—162.6 ± 1.4 Ma, granites and monzonite-porphyry of the ore-bearing complex—15
Publikováno v:
Doklady Earth Sciences. 458:1265-1272