Age of the Au-Ag mineralization and its relation to the magmatism at the Dess occurrence, North Stanovaya metallogenic zone (southeastern framing of the North-Asian Craton)
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- 作者：I. V. Buchko (1)
A. A. Sorokin (1)
V. A. Ponomarchuk (2)
A. V. Travin (2)
Ir. V. Buchko (3) - 关键词：Au ; Ag ; Mo mineralization ; North ; Stanovaya metallogenic zone ; North ; Asian Craton ; Stanovoi Belt
- 刊名：Russian Journal of Pacific Geology
- 出版年：2012
- 出版时间：April 2012
- 年：2012
- 卷：6
- 期：2
- 页码：158-163
- 全文大小：327KB
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A. A. Sorokin (1)
V. A. Ponomarchuk (2)
A. V. Travin (2)
Ir. V. Buchko (3)
1. Institute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences, per. Relochnyi 1, Blagoveshchensk, 167500, Russia
2. V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, pr. Koptyuga 3, 630090, Novosibirsk, Russia
3. Scientific-Industrial Geological Enterprise Regis, Blagoveshchensk, Russia - ISSN：1819-7159
文摘
Mesozoic ore systems were responsible for the formation of numerous Au, Ag, Mo, and Pb occurrences and deposits in the North-Stanovaya metallogenic zone, the largest of which are the Bamskoe, Vykhodnoe, Mogotinskoe, Dess, Nakhodka, and Apsakan deposits. The age of the hydrothermal-metasomatic processes that accompanied the mineralization is 130-22 Ma, which allows us to relate the ore formation to the origin of the granitoids of the Tynda-Bakaran complex (138-24 Ma). The latter rocks form large intrusions united into the Stanovoi Belt in the southeastern framing of the North-Asian Craton. The ore objects change in the sequence Au-Ag-Au-Mo(Au) from the south northward and are restricted to the contact zones of intrusions of the Stanovoi Belt, which were probably formed at the transform continental margin.