Pd/Pt IMBALANCE IN LAVAS AND INTRUSIONS OF THE NORILSK-TALNAKH ORE REGION

The paper considers the Pd/Pt ratio in the ores of the Norilsk-1 and Talnakh deposits associated with the Permian-Triassic intrusions of the Norilsk type in comparison with that in the lavas of the same age in the Norilsk region. The Pd/Pt mean ratio is 1 in lavas and 2–4 times higher than that in o...

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Bibliographic Details
Published in:Geodynamics & Tectonophysics
Main Authors: T. V. Dudkin, A. E. Marfin, A. V. Ivanov, V. S. Kamenetsky
Format: Article in Journal/Newspaper
Language:English
Russian
Published: Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust 2021
Subjects:
noirilsk
talnakh
copper-nickel deposit
pd
pt
basalts
pge concentrations
Science
Q
Norilsk
Talnakh
norilsk
Online Access:https://doi.org/10.5800/GT-2021-12-4-0560
https://doaj.org/article/1becac908ac84cc588e8678eec769e50
Description
Summary:The paper considers the Pd/Pt ratio in the ores of the Norilsk-1 and Talnakh deposits associated with the Permian-Triassic intrusions of the Norilsk type in comparison with that in the lavas of the same age in the Norilsk region. The Pd/Pt mean ratio is 1 in lavas and 2–4 times higher than that in ores and barren horizons of the Norilsk-1 and Talnakh intrusions. Such an increase implies that these elements were borrowed by magma from small and medium-sized crust deposits associated with the previous stage of Permian island-arc volcanism.

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