NDLI: Lithological features, reconstruction of redox setting, and composition of the provenances of the Upper Triassic Kular

Content Provider	Springer Nature Link
Author	Polufuntikova, L. I. Fridovsky, V. Yu.
Copyright Year	2016
Abstract	Comprehensive lithogeochemical analysis is carried out for Norian sediments from the central part of the Kular–Nera shale belt. The sediments are represented by alternation of sandstones and siltstones. Petrochemical typification shows that the sandstones are subdivided into graywacke, arkose, and subarenite, while the siltstones belong to shale. The Norian sediments were mainly deposited in an oxidizing environment of a well-aerated basin in the distal parts of the Verkhoyansk passive continental margin. They are characterized by a high sorting of sedimentary material. The correlation between the rock-forming elements and the wide range of (La/Yb)$_{ n }$ ratios indicate that the sedimentation basin contained the disintegration products of both acid [(La/Yb)$_{ n }$ = 10.52–27.26] and mafic [(La/Yb]$_{ n }$ = 6.22–8.96)] rocks. The high values of the La/Sc and Th/Co ratios are typical of acid rocks. The low K$_{2}$O/Al$_{2}$O$_{3}$ values (0.16 ± 0.02) and high Zr/Sc ratio (10.1 ± 2.74) are typical of redeposited material. It is established that several provenances were involved in the formation of the Norian sediments in the central part of the Kular–Nera shale belt. Multicomponent clastics and well-sorted recycled material were supplied into the sedimentation basin.
Starting Page	218
Ending Page	229
Page Count	12
File Format	PDF
ISSN	18197140
Journal	Russian Journal of Pacific Geology
Volume Number	10
Issue Number	3
e-ISSN	18197159
Language	English
Publisher	Pleiades Publishing
Publisher Date	2016-06-04
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	lithology geochemistry Upper Triassic sandstones siltstones lithochemical modules redox conditions provenances Kular–Nera shale belt East Yakutia Geology
Content Type	Text
Resource Type	Article
Subject	Geology Geophysics Geochemistry and Petrology Oceanography Paleontology Stratigraphy

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