First U-Pb (CA-ID-TIMS) Dating of the Uppermost Permian Coal Interval in the Minusinsk Coal Basin (Siberia, Russia) Using Zircon Grains from Volcanic Ashfalls; Minerals; Vol. 14, iss. 10

First U-Pb (CA-ID-TIMS) Dating of the Uppermost Permian Coal Interval in the Minusinsk Coal Basin (Siberia, Russia) Using Zircon Grains from Volcanic Ashfalls; Minerals; Vol. 14, iss. 10

Bibliographische Detailangaben
Parent link:Minerals.— .— Basel: MDPI AG
Vol. 14, iss. 10.— 2024.— Article number 982, 28 p.
Körperschaft: Томский политехнический университет (570)
Weitere Verfasser: Silantjev V. V. Vladimir Vladimirovich, Arbuzov S. I. Sergey Ivanovich, Tikhomirova M. Marion, Kessner A. Alexandra, Izmailova A. K. Alsu, Iljenok (Il'enok) S. S. Sergey Sergeevich, Soktoev B. R. Bulat Rinchinovich, Nurgalieva N. G. Nouria, Gutak Y. M. Yaroslav Mikhaylovich, Felker A. S. Anastasiya Sergeevna, Porokhovnichenko L. G. Lyubov Georgievna, Eliseev N. A. Nikolay Alekseevich, Zharinova V. V. Veronika Vladimirovna, Nurieva E. M. Evgeniya Mikhaylovna, Urazaeva M. N. Milyausha Nazimovna
Zusammenfassung:Title screen
This study presents the first U-Pb (CA-ID-TIMS) radioisotopic dating of zircon grains extracted from tonsteins within the uppermost Permian coal interval of the Minusinsk Coal Basin (Siberia, Russia). Petrographic, structural, and mineralogical analyses confirm the volcanic ash origin of the tonsteins. The parent pyroclastic materials are identified as rhyolite–pantellerite for tonstein I-22 and dacite–rhyodacite for tonstein I-12. Morphological analysis of zircon crystals, along with cathodoluminescence and melt inclusion studies, confirms their volcanic origin and crystallisation temperatures of 700–900 °C. New radioisotopic dates of 261.4 ± 0.7 Ma and 261.3 ± 0.4 Ma clarify the age of the Izykh Formation, enabling its direct correlation with the Capitanian Stage of the International Chronostratigraphic Chart. The results emphasise the possible discontinuity of the coal-bearing succession of Siberian palaeocontinent and highlight the potential for further stratigraphic refinement through continued radioisotopic dating of tonsteins.
Текстовый файл
Sprache:Englisch
Veröffentlicht: 2024
Schlagworte:
Siberia
Permian
tonstein
ashfalls
U-PB dating
CA-ID-TIMS
geochronology
biostratigraphy
электронный ресурс
труды учёных ТПУ
Online-Zugang:http://earchive.tpu.ru/handle/11683/132460
https://doi.org/10.3390/min14100982
Format: Elektronisch Buchkapitel
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=675768

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