Precious Metals in Diatom Muds of the Chukchi Sea: Signs of Technogenic Enrichment

The content and distribution of precious metals in fine-grained bottom sediments, accumulated in the technogenic period (last decades) in the southwestern part of the Chukchi Sea, have been studied. The ubiquitous or local enrichment of the sediments with silver, gold, platinum, and palladium accord...

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Bibliographic Details
Published in:Doklady earth sciences 2024-09, Vol.518 (1), p.1447-1456
Main Authors: Astakhov, A. S., Astakhova, N. V., Kim, D. V., Krutikova, V. O.
Format: Article
Language:English
Subjects:
Bottom sediments
Chemical composition
Diatoms
Earth and Environmental Science
Earth Sciences
Enrichment
Geochemistry
Gold
Heavy metals
Holocene
Noble metals
Palladium
Platinum
Sediment
Sediment deposits
Sediments
Silver
Statistical analysis
Statistical methods
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Summary:The content and distribution of precious metals in fine-grained bottom sediments, accumulated in the technogenic period (last decades) in the southwestern part of the Chukchi Sea, have been studied. The ubiquitous or local enrichment of the sediments with silver, gold, platinum, and palladium according to the average for the Earth’s crust, as well as their enrichment with gold and palladium relative to pre-technogenic (Late Holocene) deposits, was shown. Differences in the conditions of the accumulation of precious metals in the Late Holocene and modern sediments were shown. Sources of input were determined, and the possibility of technogenic enrichment of the sources was proved by the methods of multicomponent statistical analysis of the total chemical composition of the sediments.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X24602463