Zobrazeno 1 - 10
of 19
pro vyhledávání: '"G. V. Ledneva"'
Publikováno v:
Doklady Earth Sciences. 505:446-451
Autor:
G. V. Ledneva, A. V. Ganelin, E. V. Vatrushkina, A. V. Moiseev, Sergey D. Sokolov, Marina Luchitskaya, M. I. Tuchkova
Publikováno v:
Geotectonics. 55:697-716
Publikováno v:
Geotectonics. 54:455-476
The dunite–wehrlite–clinopyroxenite–gabbro massif in Eastern Chukotka, a key object for geodynamic reconstructions of the Vel’may terrane, which represents one of the segments of the southern border of the Chukotka folded system (Chukotka mic
Autor:
Ya. V. Bychkova, T. G. Kuz’mina, T. V. Romashova, B. A. Bazylev, G. V. Ledneva, N. N. Kononkova
Publikováno v:
Geochemistry International. 57:509-523
A method was developed for the quantitative estimation of the content of trapped melt in various dunite types and the composition of this melt on the basis of the major- and trace-element characteristics of the dunites and compositions of their chrom
Autor:
G. V. Ledneva, Sergey D. Sokolov, B. A. Bazylev, A. Ishiwatari, B. V. Belyatsky, D. V. Kuzmin, A. V. Moiseev
Publikováno v:
Geotectonics. 52:447-467
The Matachingai River basin is known among the few ophiolitic complexes on eastern Chukotka as the southern boundary of the Chukotka Fold System (in terms of tectonics, the Chukotka microcontinent or a fragment of the Arctic Alaska–Chukotka micropl
Publikováno v:
Geochemistry International. 55:330-340
Pyroxenite veins in mantle peridotites of the Unnavayam sheet of the Kuyul ophiolite terrane (Koryak—Kamchatka folded area) are composed of clinopyroxenite and websterite crystallized from a boninite-like melt. The host clinopyroxene-bearing spinel
Publikováno v:
Petrology. 21:336-350
The detailed mapping of the blocks of the Pekul’ney complex revealed that cumulate ultramafics occur as separate tabular bodies among metamorphic rocks and are only fragmentarily observed in some of the blocks. Within these bodies, different types
Publikováno v:
Petrology. 21:221-248
Dunites, peridotites, olivine and spinel pyroxenites, and metagabbroids have been described in the tectonic blocks of the Pekul’ney complex of the central Chukchi Peninsula together with garnet-hornblende-clinopyroxene and zoisite (clinozoisite)-ga
Publikováno v:
Geochemistry International. 50:44-53
The Ust’-Belaya mafic-ultramafic massif is assigned to the Western Koryak fold belt and largely composed of residual spinel peridotites, layered spinel and plagioclase peridotites, and gabbros. These rocks are crosscut by occasional plagiogranite a
Publikováno v:
Journal of Asian Earth Sciences. 40:737-745
In order to test tectonic hypotheses regarding the evolution of the Arctic Alaska–Chukotka microplate prior to the opening of the Amerasian basin, we investigated rocks exposed near Kolyuchinskaya Bay, eastern Chukotka. Hypabyssal mafic rocks and a