Gold-sulfide (Au-As) Deposits of the Yenisei Ridge (Russia): Age, Sources of Metals and Nature of Fluids

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: SGA Biennial Meeting on Mineral Resources in a Sustainable World; Nancy, FRANCE; Nancy, FRANCE

Год издания: 2015

Ключевые слова: Orogenic gold deposits, Siberia, Yenisei Ridge, geochronology, Re-Os, Ar-Ar, U-Pb

Аннотация: The problem of orogenic gold deposits genesis is considered in this contribution under the example of the Olympiada orogenic gold deposit in Yenisei Ridge, Siberia (Russia). The main productive arsenopyrite mineralization was deposited at 689 +/- 28 Ma (Re-Os), postdated by later berthierite-stibnite mineralization, deposited at 672.7 +/- 4.1 Ma (Ar-Ar). Main stage of mineralization correlates with intrusion of alkaline mafic rocks of the Zahrebetinskiy complex which was formed within the interval of 703-696 Ma (Ar-Ar). The age of antimony mineralization coincides with the age of the Chapinskiy alkaline picrite-carbonatite complex (670-650 Ma). Similar age for the gold-sulfide mineralization is established at other deposits of the Yenisei Ridge. The involvement of magmatic fluids from concurrent mafic alkaline, alkaline granite and granitoid melts in ore genesis is supported by fluid inclusion studies. The isotope-geochemical characteristics (Pb, Os, He, and S) of gold-arsenopyrite, gold-polysulfide, and stibnite-berthierite parageneses of ores at the Olympiada deposit suggest that different isotopic reservoirs could have served as the sources of ore material and fluids.

Ссылки на полный текст

Издание

Журнал: MINERAL RESOURCES IN A SUSTAINABLE WORLD, VOLS 1-5

Номера страниц: 165-168

Место издания: VANDOEUVRE-LES-NANCY

Издатель: ASGA-ASSOC SCIENTIFIQUE GEOLOGIE & APPLICATIONS

Авторы

  • Naumov Evgeny A. (Inst Geol & Mineral SB RAS, Novosibirsk, Russia; Novosibirsk State Univ, Novosibirsk 630090, Russia)
  • Borisenko Alexander S. (Inst Geol & Mineral SB RAS, Novosibirsk, Russia; Novosibirsk State Univ, Novosibirsk 630090, Russia)
  • Nevolko Pert A. (Inst Geol & Mineral SB RAS, Novosibirsk, Russia; Novosibirsk State Univ, Novosibirsk 630090, Russia)
  • Kovalev Konstantin R. (Inst Geol & Mineral SB RAS, Novosibirsk, Russia; Novosibirsk State Univ, Novosibirsk 630090, Russia)
  • Tessalina Svetlana (Cutrin Univ, John de Laeter Ctr Isotop Res, Bentley, WA 6102, Australia)
  • Sazonov Anatily M. (Siberian Fed Univ, Krasnoyarsk, Russia)
  • Savichev Andrey A. (Siberian Fed Univ, Krasnoyarsk, Russia)
  • Zvyagina Elena A. (Siberian Fed Univ, Krasnoyarsk, Russia)

Вхождение в базы данных

Информация о публикациях загружается с сайта службы поддержки публикационной активности СФУ. Сообщите, если заметили неточности.

Вы можете отметить интересные фрагменты текста, которые будут доступны по уникальной ссылке в адресной строке браузера.