Email this article THE FIRST CHEMOSTRATIGRAPHIC CURVE OF δ13Сorg. OF THE UPPER PERMIAN OF VERKHOYANIE, NORTHEAST RUSSIA, AND ITS CORRELATION WITH THE SHANGSI SECTION, SOUTHERN CHINA
- Authors: Biakov A., Kutygin R.1, Gareev B.I.2, Vedernikov I.L.3, Burnatny S.S.4
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Affiliations:
- Институт геологии алмаза и благородных металлов Сибирского отделения Российской академии наук
- Kazan Federal University
- N.A. Shilo North-East Interdisciplinary Scientific Research Institute, Far East Branch of the Russian Academy of Sciences
- North-East Interdisciplinary Scientific Research Institute n.a. N.A. Shilo FEB RAS
- Issue: Vol 526, No 1 (2026)
- Section: STRATIGRAPHY
- Submitted: 31.08.2025
- Accepted: 29.09.2025
- Published: 16.10.2025
- URL: https://journals.rcsi.science/2686-7397/article/view/307331
- ID: 307331
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Abstract
For the first time in Verkhoyanie (North-East Russia), a continuous record of the δ13Сorg value was obtained, covering the interval from the topmost Capitanian stage of the Middle Permian to the base of the Induan stage of the Lower Triassic. In the section along the Ustupnyi Creek (South Verkhoyanie), well characterized by fossil fauna (zonal species of bivalves and ammonoids in the upper parts of the section), two negative, relatively weakly expressed excursions in the δ13Сorg value are outlined: the Capitanian-Wuchiapingian (up to –24.7‰) and the late Wuchiapingian (up to –25.1‰). In general, the δ13Сorg value for the section varies from –22.6‰ (the lower part of the Wuchiapingian Stage) to –25.1‰ (the upper part of the Wuchiapingian Stage). A comparison of the obtained δ13Сorg value record with the δ13Сcarb value record in South China, the Shangsi section, is given, demonstrating satisfactory similarity. Chemostratigraphic correlation of the two sections indicates that the upper part of the Maitaia belliformis bivalve Zone belongs to the lower Wuchiapingian stage, and not to the upper Capitanian, as previously believed.
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About the authors
Alexander Biakov
Author for correspondence.
Email: abiakov@mail.ru
Ruslan Kutygin
Институт геологии алмаза и благородных металлов Сибирского отделения Российской академии наук
Email: rkutygin@mail.ru
ORCID iD: 0000-0003-4115-5976
Russian Federation
B. I. Gareev
Kazan Federal University
Email: bulat@gareev.net
Russian Federation, Kazan
I. L. Vedernikov
N.A. Shilo North-East Interdisciplinary Scientific Research Institute, Far East Branch of the Russian Academy of Sciences
Email: ivedernikov@rambler.ru
Magadan, Russia
S. S. Burnatny
North-East Interdisciplinary Scientific Research Institute n.a. N.A. Shilo FEB RAS
Email: tesfarkon@gmail.com
Russian Federation, 16 Portovaya str., Magadan, 685000
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