Early silurian age of skarns of the Ichkeulmes copper and gold deposit (Northern Kazakhstan): results U-PB (ID-TIMS) geochronological studies of garnet
- Авторлар: 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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Мекемелер:
- Геологический институт РАН
- Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
- Шығарылым: Том 526, № 1 (2026)
- Бөлім: 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
Дәйексөз келтіру
Толық мәтін
Аннотация
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.
Толық мәтін

Авторлар туралы
Andrey Tretyakov
Геологический институт РАН
Хат алмасуға жауапты Автор.
Email: and8486@yandex.ru
ORCID iD: 0000-0002-1795-9715
SPIN-код: 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
SPIN-код: 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
Ресей, Saint-Peterburg
U. Plotkina
Email: jplotkina@yandex.ru
ORCID iD: 0000-0001-6171-6051
SPIN-код: 9300-0049
Konstantin Shatagin
Email: shat@igem.ru
Nazerke Kasenova
Email: nazeka_19.07.95zh@mail.ru
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