Zobrazeno 1 - 10
of 22
pro vyhledávání: '"S. G. Kryazhev"'
Autor:
Yu. A. Kalinin, M. S. Emkuzhev, Serguei G. Soloviev, N. S. Bortnikov, V. S. Kryazhev, D. V. Semenova, S. G. Kryazhev
Publikováno v:
Geology of Ore Deposits. 63:409-430
The authors' determinations of the U–Pb isotopic age of zircon (LA–ICP–MS method) in the main types of igneous rocks emphasize the presence of both Neogene and older (up to Late Paleozoic) intrusions at the deposit. The earliest are rocks of th
Publikováno v:
Doklady Earth Sciences. 499:538-544
The isotopic U–Pb ages are estimated for zircons (for the first time by the LA–ICP–MS method) from biotite (Eldzhurty) granites and for the first time from the rhyolites at the giant Tyrnyauz Mo–W deposit (North Caucasus). The weighted mean i
Publikováno v:
Doklady Earth Sciences. 498:471-476
The first data of a U–Pb isotopic study (LA-ICP-MS method) of zircon from leucocratic granites of the giant Tyrnyauz Mo–W deposit (North Caucasus) are presented. The emplacement of this granite separated the formation stages of Mo–W skarns and
Publikováno v:
Doklady Earth Sciences. 497:281-285
The first data of U–Pb isotopic study (LA–ICP–MS method) of zircon from tonalite–granodiorite forming a dominant part of the “trondhjemite” intrusive massif at the giant Tyrnyauz W–Mo deposit (North Caucasus) is presented. The concordan
Publikováno v:
Russian Journal of Pacific Geology. 13:407-416
The evolution of the hydrothermal system forming the Bazov gold-ore deposit is traced by the data on the composition and properties of the fluid inclusions within the veined quartz. The gold-bearing quartz veins were formed under a moderate decrease
Autor:
N. S. Bortnikov, L. Ya. Aranovich, S. G. Kryazhev, S. Z. Smirnov, V. G. Gonevchuk, B. I. Semanyak, E. O. Dubinina, N V. Gorelikova, E. N. Sokolova
Publikováno v:
Геология рудных месторождений. 61:3-30
With a view to reveal special characteristics of the transition stage from granite crystallization to rare-metal ore deposition it is studied Badzhal tin-bearing magmatic-fluid system of eponymously-named volcano-plutonic zone of the Middle Priamyrie
Autor:
L. Ya. Aranovich, E. O. Dubinina, V. G. Gonevchuk, N. S. Bortnikov, B. I. Semenyak, Sergey Smirnov, N. V. Gorelikova, E. N. Sokolova, S. G. Kryazhev
Publikováno v:
Geology of Ore Deposits. 61:199-224
The Badzhal tin magmatic-fluid system of the eponymous volcanoplutonic zone in the Middle Amur Region has been studied to reveal special characteristics of the transition from granite crystallization to rare-metal deposition. Therefore, the authors h
PHYSICAL-CHEMICAL CONDITIONS OF QUARTZ FORMATION OF THE BAZOV GOLD DEPOSIT (EASTERN YAKUTIA, RUSSIA)
Publikováno v:
Tikhookeanskaya Geologiya. 38:14-24
Autor:
A. V. Tolstov, Precious Metals, Moscow, Russia, M. V. Maltsev, P. A. Ignatov, Alrosa, Mirny, Russia, S. G. Kryazhev
Publikováno v:
Gornyi Zhurnal. :18-23
Autor:
M. S. Khodnya, A. N. Razumov, K. V. Novikov, P. A. Ignatov, N. R. Zaripov, A. M. Shmonov, O. K. Kilishekov, S. G. Kryazhev, O. E. Koval’chuk
Publikováno v:
Geology of Ore Deposits. 60:201-209
Study of faults and secondary mineralization of host rocks of diamond-bearing kimberlites yields important data for local prediction of kimberlite bodies. Of special methodological interest are exploration data on deposits where the study of host roc