Participation of hydrothermal fluids in the formation of deposits of the proterozoic Udokan-Chineysky ore system

Numerous Cu deposits of the Udokan-Chineysky ore district (Udokan deposit of cupriferous sandstones, deposits of the Chineysky pluton, etc.), which occur in sedimentary and igneous rocks, are similar in many genetic features. One of these features is the similar parameters of fluid inclusions (hydro...

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Bibliographic Details
Published in:Doklady earth sciences 2013-12, Vol.453 (2), p.1175-1177
Main Authors: Gongalskiy, B. I., Prokof’ev, V. Yu, Safonov, Yu. G.
Format: Article
Language:English
Subjects:
Deposition
Deposits
Earth and Environmental Science
Earth Sciences
Fluid dynamics
Fluid flow
Fluid inclusions
Fluids
Geology
Homogenizing
Hydrothermal fluids
Igneous rocks
Minerals
Ores
Petrology
Pyrite
Rocks, Igneous
Sedimentary rocks
Sedimentation & deposition
Sulfides
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Summary:Numerous Cu deposits of the Udokan-Chineysky ore district (Udokan deposit of cupriferous sandstones, deposits of the Chineysky pluton, etc.), which occur in sedimentary and igneous rocks, are similar in many genetic features. One of these features is the similar parameters of fluid inclusions (hydrothermal fluids) in quartz of the Udokan deposit, rich chalcopyrite ores from the Rudnyi (Rudnyie deposit, and veins of the Pravoingamakitsky deposit studied previously. Fluid inclusions have the same range of high salinity and homogenization temperatures. These studies combined with geological data allow us to consider the formation of contact sulfide ores from the Chineisky pluton and Pravoingamakitsky and Udokan deposits as a common compound fluid-magmatic ore-generating system. The sedimentary rocks primarily enriched in chalcopyrite, pyrite, and pyrrhotite of the entire section of the Udokan complex served as the host media for the hydrothermal fluids and deposits of various scales.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X13120040