Silurian K-bentonites of the Dnestr Basin, Podolia, Ukraine

Journal of the Geological Society
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The Dnestr Basin of Podolia, Ukraine, is an epicratonic basin consisting of neritic carbonate and calcareous mudstone facies including a nearly complete Silurian sequence ranging from late Llandovery to late Pridoli in age. The Silurian section has served as a standard for regional and interregional studies as a consequence of its well-documented macro- and microfaunal assemblages. Approximately 24 mid- to Late Silurian K-bentonites are present in this succession, and their lateral persistence has aided in establishing regional correlations. The K-bentonites range from 1 to 40 cm in thickness and occur in the Bagovitsa (late Wenlock), Malinovtsy (Ludlow) and Skala (Pridoli) Formations. Discrimination diagrams based on immobile trace elements together with rare earth element data suggest the K-bentonites had a volcanic origin in a collision margin setting related to subduction. Thickness and stratigraphic distribution considerations are consistent with a source area in the Rheic Ocean.
Publication type Article
Publication Subtype Journal Article
Title Silurian K-bentonites of the Dnestr Basin, Podolia, Ukraine
Series title Journal of the Geological Society
Volume 157
Issue 2
Year Published 2000
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of the Geological Society
First page 493
Last page 504
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