NDLI: The Callovian and Late Jurassic ammonite-based chronostratigraphy of West Siberia: important findings, biostratigraphic review, and basin correlation West Siberia-South England

Content Provider	Springer Nature Link
Author	Alifirov, Alexandr S. Beisel, Alexander L. Meledina, Svetlana V.
Copyright Year	2015
Abstract	This study reviews the Callovian to Volgian biozonation in West Siberia and discusses the problems related to zonations of Jurassic sequences relying only on well core data. The West Siberian Callovian to Volgian formations are correlated with its coeval analogs in South England for the first time. The sequences within the Corallian Group and Vasyugan Suite are very similar in their age and sequence interpretation. Four event levels are proposed using revised ammonite biozonations: (1) the base of the Cornbrash Fm.—the bottom of the U 2 0 Layer; (2) the base of the Oxford Clay Fm.—the base of the Vasyugan Suite—the bottom of the Jason Zone; (3) the Berkshire/Nothe Grit boundary—the top of the U 1 3 Layer—the bottom of Densiplicatum Zone; (4) the base of the Kimmeridge Clay Fm.– the Vasyugan/Georgiev boundary—the bottom of the Baylei Zone. The authors aim to demonstrate that a detailed and reliable biozonal basis is required to correlate events.
Starting Page	11
Ending Page	21
Page Count	11
File Format	PDF
ISSN	16642376
Journal	Swiss Journal of Palaeontology
Volume Number	135
Issue Number	1
e-ISSN	16642384
Language	English
Publisher	Springer International Publishing
Publisher Date	2015-11-25
Publisher Place	Cham, Switzerland
Access Restriction	Subscribed
Subject Keyword	West Siberia Ammonites Lithostratigraphy Biozonation Late Jurassic Paleontology
Content Type	Text
Resource Type	Article
Subject	Paleontology

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