Article (Scientific journals)
Progress in the study of the Devonian–Carboniferous boundary sections in the Berchogur Depression (Mugodzhary Mountains, western Kazakhstan)
Nikolaeva, Svetlana V.; Kulagina, Elena I.; Mustapayeva, Sezim N. et al.
2022In Paläontologische Zeitschrift
Peer Reviewed verified by ORBi Dataset
 

Files


Full Text
Nikolaeva et al_2022 (DCB Berchogur).pdf
Publisher postprint (12.22 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Ammonoids; Berchogur; Conodonts; Corals; Crinoids; Devonian–Carboniferous boundary; Foraminifers; Stratigraphy; Trilobites; Western Kazakhstan; Paleontology
Abstract :
[en] The Devonian–Carboniferous boundary beds in the Berchogur (Birshogyr) sections in the Mugodzhary (Mugalzhary) Mountains in western Kazakhstan, known to contain various fossil groups, including ammonoids, conodonts, foraminifers, corals, crinoids, and trilobites, are re-examined. The siliciclastic-carbonate succession of the Zhangana Formation reveals the presence of several ammonoid, conodont, and foraminiferal zones. The succession contains the Acutimitoceras ammonoid Genozone, equivalent to the level of the Stockum ammonoid fauna of Germany, with the conodont Siphonodella sulcata appearing within the Genozone. The same beds show mass occurrences of the foraminifer Tournayellina pseudobeata. The study of the Berchogur sections began in the 1980s; these sections are among very few successions globally with ammonoids of the Acutimitoceras Genozone in association with conodonts and foraminifers. At that time, several outcrops in a small area in the upper reaches of Burtybai (Zhangansai) Creek and two boreholes drilled near the sections were studied, and new taxa of ammonoids, foraminifers, ostracods, conodonts, algae, and spores were described. New excavations in 2018–2020, in conjunction with a search for a new definition of the Devonian–Carboniferous boundary, provided abundant new information on these taxa, on the lithology, and on crinoids, trilobites, and corals. The exact position of marker fossils and lithological changes are documented in several sections along Burtybai Creek allowing an amended correlation with sections of the D–C boundary beds in Western Europe.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Nikolaeva, Svetlana V. ;  Natural History Museum, London, United Kingdom ; Borissiak Paleontological Institute, Russian Academy of Sciences, Moscow, Russian Federation ; Kazan Federal University, Kazan, Russian Federation
Kulagina, Elena I. ;  Institute of Geology, Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russian Federation
Mustapayeva, Sezim N. ;  Institute of Geology, Oil, and Mining, Satbayev University (Kazakh National Research Technical University), Almaty, Kazakhstan
Alekseev, Alexander S. ;  Borissiak Paleontological Institute, Russian Academy of Sciences, Moscow, Russian Federation ; Department of Paleontology, Geology Faculty, Lomonosov Moscow State University, Moscow, Russian Federation
Gatovsky, Yury A. ;  Department of Paleontology, Geology Faculty, Lomonosov Moscow State University, Moscow, Russian Federation
Denayer, Julien  ;  Université de Liège - ULiège > Département de géologie > Evolution and diversity dynamics lab
Ohar, Viktor ;  Institute of Geology, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Kurilenko, Alena V. ;  Dobretsov Geological Institute, Siberian Branch of the Russian Academy of Sciences, Ulan-Ude, Russian Federation
Zhaimina, Valentina Ja. ;  Institute of Geological Sciences named after K. I. Satbayev, Satbayev University, Almaty, Kazakhstan
Mychko, Eduard V. ;  Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russian Federation
Language :
English
Title :
Progress in the study of the Devonian–Carboniferous boundary sections in the Berchogur Depression (Mugodzhary Mountains, western Kazakhstan)
Publication date :
2022
Journal title :
Paläontologische Zeitschrift
ISSN :
0031-0220
eISSN :
1867-6812
Publisher :
Springer Science and Business Media Deutschland GmbH
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 31 May 2022

Statistics


Number of views
87 (2 by ULiège)
Number of downloads
0 (0 by ULiège)

Scopus citations®
 
7
Scopus citations®
without self-citations
5
OpenCitations
 
2
OpenAlex citations
 
7

Bibliography


Similar publications



Contact ORBi