Sedimentary geology of the Middle Carboniferous of the Donbas region (Dniepr-Donets basin, Ukraine)

Douwe J.J. van Hinsbergen, Hemmo A. Abels, Wolter Bosch, Flora Boekhout, Alexander Kitchka, Maartje Hamers, Douwe G. van der Meer, Mark Geluk, Randell A. Stephenson

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Abstract

The Paleozoic Dniepr-Donets Basin in Belarus, Ukraine, and Russia forms a major hydrocarbon province. Although well- and seismic data have established a 20 km thick stratigraphy, field-studies of its sediments are scarce. The inverted Donbas segment (Ukraine) exposes the middle Carboniferous part of the basin’s stratigraphy. Here, we provide detailed sedimentological data from 13 sections that cover 1.5 of the total of 5 km of the Bashkirian and Moscovian stages and assess the paleoenvironment and paleo-current directions. Middle Carboniferous deposition occurred in a shelf environment, with coal deposition, subordinate fluvial facies, and abundant lower and middle shoreface facies, comprising an intercalated package of potential source and reservoir rocks. Sedimentary facies indicate a paleodepth range from below storm wave base to near-coastal swamp environments. Sedimentation and subsidence were hence in pace, with subtle facies changes likely representing relative sea-level changes. Paleocurrent directions are remarkably consistently southeastward in time and space in the different sedimentary facies across the Donbas Fold Belt, illustrating a dominant sedimentary infill along the basin axis, with little basin margin influence. This suggests that the middle Carboniferous stratigraphy of the Dniepr-Donets basin to the northwest probably contains significant amounts of fluvial sandstones, important for assessing hydrocarbon reservoir potential.
Original languageEnglish
Article number9099
Number of pages8
JournalScientific Reports
Volume5
Early online date20 Mar 2015
DOIs
Publication statusPublished - 20 Mar 2015

Keywords

  • geology
  • sedimentology

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    van Hinsbergen, D. J. J., Abels, H. A., Bosch, W., Boekhout, F., Kitchka, A., Hamers, M., van der Meer, D. G., Geluk, M., & Stephenson, R. A. (2015). Sedimentary geology of the Middle Carboniferous of the Donbas region (Dniepr-Donets basin, Ukraine). Scientific Reports, 5, [9099]. https://doi.org/10.1038/srep09099