Центральная Научная Библиотека УрО РАН

Главная

Новые поступления

Описание

Базы данных

Труды сотрудников Института органического синтеза УрО РАН - результаты поиска

Вид поиска

Каталог книг и продолжающихся изданий

Сводный каталог иностранных периодических изданий, имеющихся в библиотеках УрО РАН

Сводный каталог отечественных периодических изданий, имеющихся в библиотеках УрО РАН

Каталог диссертаций и авторефератов диссертаций УрО РАН

Каталог препринтов УрО РАН (1975 г. - )

Имидж-каталог отечественных книг (до 2010 г.)

Имидж-каталог иностранных книг (до 2010 г.)

Алфавитно-предметный указатель (АПУ) ЦНБ УрО РАН

Публикации об УрО РАН

Изобретения уральских ученых

Интеллектуальная собственность (статьи из периодики)

Нанотехнологии

Демидовские премии

Гибель династии Романовых

История Урала

Личная библиотека С. В. Вонсовского

Книжная коллекция Шубиных

Труды Института высокотемпературной электрохимии УрО РАН

Труды Института истории и археологии УрО РАН

Труды сотрудников Института горного дела УрО РАН

Труды сотрудников Института органического синтеза УрО РАН

Труды сотрудников Института теплофизики УрО РАН

Труды сотрудников Института химии твердого тела УрО РАН

Расплавы

Труды сотрудников ЦНБ УрО РАН

Публикации Черешнева В.А.

Публикации Чарушина В.Н.

Каталог библиотеки ИГД УрО РАН

Каталог библиотеки ИЭРиЖ УрО РАН

Электронная энциклопедия «Дискурсология»

Библиометрия

Область поиска

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>A=Rusinova, O. V.$<.>)

Общее количество найденных документов : 6
Показаны документы с 1 по 6

Инвентарный номер: нет.

   R 95

    Rusinova, O. V.
    Metasomatism in the Muruntau ore field (Western Uzbekistan) [Text] / O. V. Rusinova, V. L. Rusinov // Geology of Ore Deposits. - 2003. - Vol. 45, № 1. - P66-85. - Bibliogr. : p. 85 (34 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
GOLD -- METALLOGENESIS -- METASOMATISM -- MINERALIZATION -- ORE DEPOSIT
Аннотация: The formation of the giant Muruntau gold-quartz deposit and ore field (western Uzbekistan) is defined as a prolonged (70 Ma) multiphase geological process related to shear tension and ductile deformations of rocks. The history of the ore field development is very complicated, and there is still much to be learned about it. We studied the conditions, zonation, and deformations of the metasomatism-related ore formation, as well as the behavior of carbonaceous matter (CM) in this process. Lower Paleozoic sheared carbonaceous host rocks are regionally metamorphosed in the muscovite-chlorite subfacies. This process, which evolved over a long time (C3-P1), started with the increase in temperature (the progressive megastage) and continued during its decrease when the bulk of gold was deposited. The beginning of the process was associated with ductile deformations that showed up in folding and shearing of rocks. At that time, pre-ore magnesium-potassium metasomatism took place in the temperature interval of 400-600°C. During the regressive megastage, calcium metasomatism occurred and skarn assemblages (actinolite, clinozoisite, diopside, and garnet) were deposited at T = 400-520°C. Later, ductile deformations were replaced by brittle deformations, and quartz-ore veinlets and lenses formed together with locally developed vein-related orthoclase-chlorite, albite-carbonate, sericite-tourmaline, and quartz-adular metasomatites. The metasomatic zonation showed up at early stages and was oriented along the direction of fluid filtration. The outer (front) zone is represented by a dome of biotitized rocks. Banded biotite-feldspar-quartz metasomatites occur within them. Their back (inner) zones are composed of the biotite-orthoclase-quartz assemblage. Younger skarn assemblages make up series of thin bands within biotite-feldspar-quartz metasomatites. Ore veinlets are enclosed within this metasomatic halo. CM took an active part in the hydrothermal process: it was output from metasomatic zones and redeposited along their outer boundary. CM interacted with the hydrothermal solution and maintained the reducing medium at the level of a QFM buffer. Temperatures established by the carbon isotope thermometer (CM + carbonate) are similar to values of mineral geothermometers (250-350°C during ore deposition). The distinctive features of metasomatism in the Muruntau ore field, hosted by carbonaceous sequences and shear zones, are the absence of vein-related zonation and a poor vertical zonation (a low T gradient), suppressed acid metasomatism, and the lack of an obvious relationship between ore mineralization and a particular magmatism.????

Найти похожие

Инвентарный номер: нет.

   R 95

    Rusinov, V. L.
    Metasomatic processes in carbonaceous rock sequences within regional shear zones [Text] / V. L. Rusinov, O. V. Rusinova // Doklady Earth Sciences. - 2003. - Vol. 388, № 1. - P101-105. - Bibliogr. : p. 105 (13 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CARBONATE ROCK -- HYDROTHERMAL ACTIVITY -- METASOMATISM -- SHEAR ZONE

Найти похожие

Инвентарный номер: нет.

   W 20


    Wall Rock Metasomatism and Formation Conditions of the Silver-Polymetallic Bol'shoi Kanimansur Deposit (Tadjikistan) [Text] / O. V. Rusinova, V. L. Rusinov, E. D. Syngaevskii , L. I. Bochek, M. I. Lapina, Yu. V. Vasyuta // Geology of Ore Deposits. - 2001. - Vol. 43, № 5. - P386-405. - Bibliogr. : p. 405 (20 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
SILVER-POLYMETALLIC DEPOSIT -- CARBON -- METASOMATIC TRANSFORMATIONS -- REGIONAL MAGMATISM
Аннотация: Products of the hydrothermal alteration of rocks and vertical zonality at the Kanimansur silver-polymetallic deposit (Tadjikistan) have been studied. On the basis of these studies, physicocochemical conditions of metasomatism and ore formation were reviewed. Condensed carbonaceous matter in wall rock metasomatites and ores were found and carbon isotopic composition of this carbonaceous matter and composition of gases in open pores in rocks of the deposit were analyzed. As a result of geological observations, analysis of mineral parageneses, compositions of minerals, and chemistry of wall rock alteration, the following four stages of the hydrothermal process were distinguished: autometasomatic, propylitic, preore chlorite-sericite, and synore. Mineral geothermometers were used to estimate the temperatures of metasomatism, which varied within the range 200-250°C for all stages except for the autometasomatic stage (450-500°C). The formation of unhydrated light micas, quartz, and highly ferruginuous chlorites was related to acid preore metasomatism. The stability of these chlorites testifies to a slight increase in the acidity of solutions during the preore stage (pH not less than 3.5). The wall rock metasomatites and sulfide ores are characterized by a relatively rare occurrence of pyrite due to a low activity of the sulfide sulfur during hydrothermal alterations (logaS2 = -7...-10). The low activity of the sulfide sulfur is confirmed by the fact that iron is tied in a highly ferruginuous chlorite. At upper ore levels, even zinc is tied in chlorite. This testifies to a much greater aS2 /aO2 value. Judging by the participation of carbonaceous matter in the process, ore components were deposited due to a local increase in the alkalinity at the ore-forming stage and oxidation of reduced fluids. The established features of metasomatic transformations, are related to particulars of the regional magmatism.????

Найти похожие

Инвентарный номер: нет.

   M 61


    Metasomatic mineral composition at the Sukhoi Log gold ore deposit: Evidence for its genetic relation to mafic-ultramafic magmatism [Text] / V. L. Rusinov, O. V. Rusinova, S. E. Borisovskii, E. I. Alysheva // Doklady Earth Sciences. - 2005. - Vol. 405A, № 9. - P1368-1372

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

Инвентарный номер: нет.

   W 20


    Wall Rock Alterations and Physicochemical Conditions of the Sovetsk Gold Deposit Formation (Enisei Ridge) [Text] / O. V. Rusinova, V. L. Rusinov, S. S. Abramov, S. V. Kuznetsova, Yu. V. Vasyuta // Geology of Ore Deposits. - 1999. - Vol. 41, № 4. - P276-294. - Bibliogr. : p. 294 (24 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
WALL ROCK ALTERATIONS -- PHYSICOCHEMICAL CONDITIONS -- DEPOSIT FORMATION -- GOLD
Аннотация: The mode of distribution of carbonaceous matter (CM) and specific characteristics of the metasomatic zonation were studied, as well as physicochemical conditions of the ore deposition and wall rock alteration at the Sovetsk gold deposit. The deposit relates to the quartz vein low-sulfide type and is hosted by carbonaceous rock sequences ("black shales") within a wide shear zone. This shear zone spreads along the regional Ishimbin strike-slip deep fault. The Proterozoic Tatarsk-Ayakhtin granitic complex, intruding the ore bearing rocks, composes the core of the ore district. Granites compose a pluton roof, where Olimpiada and Veduga gold deposits occur, and in contact zones the Eldorado and Pereval'ninsk deposits are located. The Sovetsk deposit is situated farther from the pluton contacts. The rocks of the ore-bearing sequence are metamorphosed in the chlorite-muscovite greenschists facies. A specific feature of wall rock alteration is unclear lateral metasomatic zonation with gradual transition between zones and alternating bands of strong and weak alterations. The main metasomatic minerals are muscovite and chlorite. Quartz and carbonate are subordinate, and ilmenite, rutile, monoclinic, and hexagonal pyrrhotites are accessories. Above ore bodies turmaline is rather common, but inside and below ore bodies albite occurs. The distribution and zonation of metasomatic parageneses allow us to call this kind of wall rock alteration as "disseminated metasomatism." The rock alteration developed sinchroneously with dynamic metamorphism in the strongly anisotropic sheared rocks. The absence or low intensity of acidic metasomatism is an important feature of the deposit. The temperature of metamorphism was 500-460°C, of wall rock alteration - 460-350°C, and of ore deposition (from early to late stages) from 380 to 150°C. The disseminated CM was metamorphosed to the low graphitic stage, and the condensed CM in veinlets corresponds to the late antracitic stage. The fugacity of oxygen and sulfur in the fluids was estimated with ilmenite = rutile + pyrrhotite equilibrium, composition of pyrrhotite and chlorite. The oxygen fugacity was lower than that of the ilmenite-magnetite buffer, and sulfur fugacity was lower than that of the pyrite-pyrhothite buffer. Nearer to the ore bodies the sulfur fugaeity increases, and inside ore bodies it corresponds to the pyrite + pyrrhotite paragenesis. The calculations of the oxygen fugacity with the gas composition in the system C-O-H suggests that the ratios CO2/CH4/H2O are close to the QFM and ilmenite-magnetite buffers and similar to that received with some mineral fugometers. Hydrocarbons with 2-4 carbon atoms appear not to be in equilibrium with CO2. The variation intervals of pH, fo2 and (before the ore deposition) of T are rather narrow. The pressure under metamorphism exceeded 1.9 kbar, but it decreased to the beginning of ore deposition to 0.7 kbar. This means that ores were deposited in an extension environment.

Найти похожие

Инвентарный номер: нет.

   W 20


    Wall-rock metasomatism of carbonaceous terrigenous rocks in the Lena gold district [Text] / V. L. Rusinov, O. V. Rusinova, S. G. Kryazhev , E. V. Shchegol'kov, E. I. Alysheva, S. E. Borisovskii // Geology of Ore Deposits. - 2008. - Vol. 50, № 1. - P1-40. - Bibliogr. : p. 40 (54 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
GOLD DEPOSITS -- MINERALOGY -- ORE DEPOSIT GEOLOGY -- PRESSURE GRADIEN -- SEDIMENTARY ROCKS

Найти похожие

Сиглы отделов ЦНБ УрО РАН

  бр.ф. - Бронированный фонд

  бф - Научно-библиографический отдел

  БХЛ - Фонд художественной литературы

  ИИиА -Фонд исторической литературы в ЦНБ УрО РАН

  ИМЕТ -Отдел ЦНБ в Институте металлургии УрО РАН

  кх - Отдел фондов (книгохранениe)

  МБА - Межбиблиотечный абонемент

  мф - Методический фонд

  ок - Отдел научной каталогизации

  оку - Отдел комплектования и учета

  орф - Обменно-резервный фонд

  пф - Читальный зал деловой и патентной информации

  рк - Фонд редкой книги

  ч/з - Главный читальный зал

  эр - Зал электронных ресурсов

Сиглы библиотек институтов и НЦ УрО РАН

© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)