Forming conditions and petrogeochemical particularities of fluid-explosive productions from gold deposits of Eastern Transbaikalia

Autor: B. N. Abramov
Jazyk: English<br />Russian
Rok vydání: 2015
Předmět:
Zdroj: Литосфера, Vol 0, Iss 1, Pp 86-97 (2015)
Druh dokumentu: article
ISSN: 1681-9004
2500-302X
Popis: In Eastern Transbaikalia, as a result of collision processes during Middle-Late Jurassic, formations of amudzhikano-shakhtaminsky complex (J2-3) has been acquired wide development. The origin of gold mineralization and explosive breccias associated with the final stages of their forming. As a rule, a few stages of the formation of explosive breccias are separated. Marked pre-ore, sin-ore and post-ore breccias differ by the composition of cement and concentrations of ore, rare and rare-earth elements. Magma chambers of early explosive breccias characterized by greater depth and smaller values of their differentiation degree.
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