U–Pb Age of Kimberlitic Zircons from Economic and Occurrence-Scale Diamond Placers of the Northeastern Siberian Platform
- Autores: Goloburdina M., Grakhanov S., Dak A., Zubova T., Proskurnin V., Rodionov N., Tarasov A., Shatsky V.
- Edição: Volume 526, Nº 2 (2026)
- Seção: GEOLOGY
- ##submission.dateSubmitted##: 23.07.2025
- ##submission.dateAccepted##: 23.09.2025
- ##submission.datePublished##: 18.11.2025
- URL: https://journals.rcsi.science/2686-7397/article/view/302881
- ID: 302881
Citar
Texto integral
Resumo
This paper presents the results of a study of zircons recovered from ancient and modern diamond placers of the Lena–Anabar subprovince of the Siberian Diamond Province. The study includes U–Pb dating and the determination of trace and rare earth element concentrations using a SHRIMP-IIе ion microprobe. The research covered all major economic diamond placers of the Anabar, Kuonam, and Prilensky districts, along with placer occurrences in the Lower and Middle Olenek, Muno–Tyung, and Primorsky diamond-bearing regions.
Zircons associated with diamonds yielded Jurassic, Triassic, Late Devonian–Early Carboniferous, and Silurian–Early Devonian ages. These dates correspond well with the known ages of primary kimberlite sources. Analysis of both balance-grade and mined-out placers indicates that approximately 75% of the placer diamond deposits were sourced from Triassic primary kimberlite bodies.
Texto integral
Sobre autores
Marina Goloburdina
Autor responsável pela correspondência
Email: marina_goloburdina@karpinskyinstitute.ru
ORCID ID: 0009-0007-3390-1955
Rússia
Sergey Grakhanov
Email: s.grakhanov@yandex.ru
ORCID ID: 0009-0009-5327-309X
Código SPIN: 5254-5010
Aleksey Dak
Email: a_dak@mail.ru
Tatiana Zubova
Email: tatiana_zubova@karpinskyinstitute.ru
Vasily Proskurnin
Email: vasily_proskurnin@karpinskyinstitute.ru
Nikolay Rodionov
Email: rodionov@karpinskyinstitute.ru
Aleksey Tarasov
Email: atarasov@rosnedra.gov.ru
Vladislav Shatsky
Email: shatsky@igm.nsc.ru
Arquivos suplementares
