Early silurian age of skarns of the Ichkeulmes copper and gold deposit (Northern Kazakhstan): results U-PB (ID-TIMS) geochronological studies of garnet
- Autores: Tretyakov A.1, Degtiarev K.1, Stifeeva M.1, Salnikova E.B.1, Chepchev S.1, Кotov A.2, Plotkina U.V.2, Shatagin K.N.2, Kasenova N.2
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Afiliações:
- Геологический институт РАН
- Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
- Edição: Volume 526, Nº 1 (2026)
- Seção: GEOLOGY OF ORE DEPOSITS
- ##submission.dateSubmitted##: 19.09.2025
- ##submission.dateAccepted##: 06.10.2025
- ##submission.datePublished##: 16.10.2025
- URL: https://journals.rcsi.science/2686-7397/article/view/309543
- ID: 309543
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Resumo
Garnet crystals have been studied in the rocks of the Ichkeulmes copper and gold deposit located in the southwestern exocontact zone of the Seletinsky granite massif of the Krykkuduk complex. It has been established that garnet is represented by polychrome zonal grains and individual uniformly colored crystals. Pomegranate grains often have zonality due to the alternation of zones with different ratios of andradite and grossular components. U-Pb (ID-TIMS) geochronological studies have been performed for polychrome and individual garnet grains of green and brown colors and the Early Silurian (438 ± 1 million years) age of their crystallization has been substantiated, which is assumed to be the age of formation of the skarns of the Ichkeulmes deposit. The presence of solid-phase inclusions of minerals of the aikinite group in garnet, the formation of which is paragenetically related to gold mineralization, indicates the synchronicity of the processes of formation of the studied garnet and ore genesis.
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Sobre autores
Andrey Tretyakov
Геологический институт РАН
Autor responsável pela correspondência
Email: and8486@yandex.ru
ORCID ID: 0000-0002-1795-9715
Código SPIN: 1328-8304
к.г.-м.н., ведущий научный сотрудник, завлаб, Геологический институт РАН
Пыжевский пер. 7, Москва, 119017, РоссияKirill Degtiarev
Email: degtkir@mail.ru
Maria Stifeeva
Email: stifeeva.maria@yandex.ru
E. Salnikova
Email: katesalnikova@yandex.ru
ORCID ID: 0000-0002-9099-682X
Código SPIN: 1121-9021
Sergey Chepchev
Email: s_chepchev@kyzyltu.kz
Aleksandr Кotov
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Email: abkotov-spb@mail.ru
Rússia, Saint-Peterburg
U. Plotkina
Email: jplotkina@yandex.ru
ORCID ID: 0000-0001-6171-6051
Código SPIN: 9300-0049
Konstantin Shatagin
Email: shat@igem.ru
Nazerke Kasenova
Email: nazeka_19.07.95zh@mail.ru
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