Geologic and Geochemical Features of the Upper Devonian Coals of the North Timan (the Sula River Coal Field)-Reference-Cited by-同舟云学术

Geologic and Geochemical Features of the Upper Devonian Coals of the North Timan (the Sula River Coal Field)

Published:2024-01-01 Issue:1 Volume:65 Page:137-153
ISSN:1068-7971
Container-title:Russian Geology and Geophysics
language:en
Short-container-title:

Author:

Bushnev D.A.¹,Burdel’naya N.S.¹,Snigirevsky S.M.²³,Beznosov P.A.¹⁴,Kotik O.S.¹,Pronina N.V.⁵,Grin’ko A.A.⁶

Affiliation:

1. a Institute of Geology, Komi Science Center, Ural Branch of the Russian Academy of Sciences, ul. Pervomaiskaya 54, Syktyvkar, 167982, Russia

2. b St. Petersburg State University, Universitetskaya nab. 7/9, Saint Petersburg, 199034, Russia

3. c Komarov Botanical Institute, Russian Academy of Sciences, ul. Popova 2, Saint Petersburg, 197376, Russia

4. d Kazan (Volga region) Federal University, ul. Kremlevskaya 18, Kazan, 420008, Russia

5. e Lomonosov Moscow State University, Leninskie Gory 1, Moscow, 119234, Russia

6. f National Research Tomsk State University, pr. Lenina 36, Tomsk, 634050, Russia

Abstract

Abstract —The composition of the oldest coals of the Timan–northern Urals region has been studied comprehensively, and their hydrocarbon and microcomponent characteristics are given. The relationship between different types of coals and Late Devonian plant communities of the North Timan is revealed. It is also determined that some samples contain microspores, megaspores, and plant remains belonging mainly to the lycopod Helenia. The most probable source of jet coals is identified as the wood of the progymnosperm Callixylon. The values of vitrinite reflectance and Tmax and the data on the distribution of polycyclic biomarkers and methylphenanthrenes indicate the low maturation of the coal organic matter. The coal bitumen investigated here is characterized by the dominance of steranes and diaster-13(17)-enes of compositions C28 and C29. The following diterpanes are identified: beyerane, 16α(H)-kaurane, 16β(H)-kaurane, and 16α(H)-atisane. At the same time, phyllocladane is absent.

Publisher

GeoScienceWorld

Subject

Geology,Geophysics

Link

https://pubs.geoscienceworld.org/rgg/article-pdf/65/1/137/6193879/rgg_11_jan2024.pdf

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