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Vadym Stefanskyi

Vadym Stefanskyi

PhD, Senior Researcher

About

43
Publications
3,462
Reads
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19
Citations
Additional affiliations
September 2017 - September 2019
National Academy of Sciences of Ukraine
Position
  • PhD Student
April 2014 - August 2017
Dnepropetrovsk National University
Position
  • Managing Director
September 2005 - April 2013
UKRAINIAN STATE GEOLOGICAL EXPLORATION INSTITUTE (UKRDGRI) (STATE ENTERPRISE)
Position
  • Head of Department
Education
September 1979 - June 1984
Dnipropetrovsk Mining Institute
Field of study
  • stratigraphy and paleontology

Publications

Publications (43)
Article
Porifera is a clade of globally distributed, early diverging metazoans that are important components of modern aquatic environments. Despite the fact that they were also abundant in the geological past, their fossil record is uneven. For example, little is known about sponge communities that inhabited the Tethyan areas during the Cenozoic. Here, we...
Article
Full-text available
Well-preserved skeletons of Paleocene and Eocene scleractinians and octocorals (Polytremacis sp.) from Poland and Ukraine were studied to reveal microborings produced in vivo by coral-associated microendoliths. Microborings (mostly < 5 μm in diameter) are hardly visible, if at all, under a petrographic microscope. Their resin casts are obtained, ho...
Data
Table ІV Fig. 1. Caucasina schischkinskayae (Samoilova), No. 155f/9, borehole 9, 130 m. Fragment of the early part of the test with paleobacterial objects' remnants (b). Asterisks indicate the most obvious places of the skeletal substance dissolution. Fig. 2. Heterolepa sp., No. 161f/9, borehole 9, 80 m. View from the abdominal side. Asterisks indi...
Data
Table ІІ Fig. 1, а–b. Spiroplectammina ex gr. carinata (d’Orbigny), No.157f/29, borehole 29, 238,5 m. 1а – general view; 1б – fragment of the test surface with cluster of coccoid bacterial objects (b). Fig. 2, а–d. Spiroplectammina carinata (d’Orbigny), No.158f/29, borehole 29, 237,5 m. 2а – general view; 2б – initial part of the test with cluster...
Data
Table ІІІ Fig. 1, а–b. Tenuitella khadumica (N.Bykova), No.159f/9, borehole 9, 87 m. 1а – general view; 1b – crystal-jams of marcasite crystals (m) and bacterial films (bf) in the cavity of the last chamber (chamber wall is destroyed). Fig. 2, а–d. Cyclammina cancellata Brady, No.160f/16, borehole 16, 106 m. 2а – general view; 2b–d – fragments of t...
Data
Table І Fig. 1, а–b. Caucasina schischkinskayae (Samoilova), No.155f/9, borehole 9, 130 m.1а – general view; 1b – fragment of the test surface with cyanobacterial chlorophyte remnants (ch). Fig. 2, а–b. Gaudryina (?) sp., No.156f/16, borehole 16, 106 m. 2а – general view; 2b – fragment of the test surface with remains of actinomycetes (fungi?) (a),...
Conference Paper
Full-text available
The presence of zeolites in the skeletons of various marine organisms (foraminifera, ostracods, mollusks, etc.) is known from the Mesozoic-Cenozoic sediments of many sites in the Atlantic, Pacific, Mediterranean [e.g., 1-2, 4-8]. Depending on the mineral and chemical composition of zeolites, the origin of such finds may be interpreted in different...
Poster
Full-text available
The presence of zeolites in the skeletons of various marine organisms (foraminifera, ostracods, mollusks, etc.) is known from the Mesozoic-Cenozoic sediments of many sites in the Atlantic, Pacific, Mediterranean [e.g., 1-2, 4-8]. Depending on the mineral and chemical composition of zeolites, the origin of such finds may be interpreted in different...
Conference Paper
Full-text available
The central part of the Ukrainian Shield is characterized by a variety of shallow-water sediments of the Eocene. Among them, one should especially note the sand facies which is fragmentarily developed here. Their age and formation conditions need to be specified. In particular, gaize-like sandstones with numerous and diverse fauna of Verblyuzhka vi...
Conference Paper
Full-text available
Gaize-like sandstones of Verblyuzhka village (Kirovograd Oblast) include the Middle Eocene malacofauna (38 forms) and have been formed during the volcanic activation in the Ingul megablock of the Ukrainian Shield. Conclusion on the Middle Eocene age of the gaize-like sandstones of Verblyuzhka village is consistent with the data on the time of large...
Article
Full-text available
The present paper contains new results of complex studies on the geological structure, lithology, and fauna of the Middle Eocene siliceous rocks of the Ukrainian Shield Ingul megablock located in the vicinity of the villages of Tsybulevo, Verblyuzhka and Pervozvanovka of Kirovograd Oblast and Voronovka village of Mykolayiv Oblast. Based on new find...
Conference Paper
Full-text available
Siliceous rocks are widely distributed in the Ukrainian shield area. Here they are mainly developed among the Upper Cretaceous, Paleocene and Middle Eocene deposits and are represented by a wide lithologic spectrum from spicule-bearing clays, glauconite sands, siltstones to gaize-like siltstones, marls, gaize, and tripoli. The latter form deposits...
Conference Paper
Full-text available
ПРО ВПЛИВ ВУЛКАНІЗМА НА ФОРМУВАННЯ УНІКАЛЬНИХ КОМПЛЕКСІВ ФАУНИ В ПАЛЕОЦЕН-ЕОЦЕНОВИХ БАСЕЙНАХ СЕРЕДНЬОГО ПРИДНІПРОВ’Я ТА СУМІЖНИХ ТЕРИТОРІЙ Вадим Стефанський Інститут геологічних наук НАН України вул.О. Гончара, 55-Б, Київ, 02054, Україна e-mail: stefanskyi2017@gmail.com Відомо, що розповсюдження біот у сучасних та давніх нормально солених морсь...
Poster
Full-text available
A detailed study of the ecological structure of fauna complexes and lithofacies of the Southern Ukraine Miocene deposits has shown their good potential for the reconstruction of some of climatic and geological events.
Conference Paper
Full-text available
It has been known that the most dramatic changes in the vertical distribution of faunal assemblages are the main reason for marking out the major stages in the development of the biota to be the basis of the stratigraphic scheme of the Neogene of Southern Ukraine and, in general, of Eastern Paratethys. A detailed study of the ecological structure o...
Article
Full-text available
The article presents the first information about the paleobacterial objects which have been found on the walls of the foraminiferal tests from the Borysthenian (Planorbella) Regional Stage of the Lower Oligocene of Southern Ukraine. 145 agglutinated and calcareous tests have been selected and studied from the Lower Oligocene (Borisphenian) sediment...
Research
Full-text available
Mandrykovka beds are treated as non-uniform taphogerm body, wich formed in different habitats of the littoral, including areas of coral buildings of the Late Eocene basin. The unique diversity of systematic Mandrykovska faunistic association determined accumulation and mixing residues representatives of various ecological niches of littoral and cor...
Article
Full-text available
В статті наведено біографія Арнольда Олексійовича Веселова, короткі відомості щодо його наукової спадщини, список основних робіт. Автор звернув увагу на деякі проблемні питання методики стратиграфічних досліджень палеоген-неогенових відкладів кайнозою. А.О. Веселов – досвідчений український геолог, який зробив значний внесок в розвиток стратиграфії...
Article
Full-text available
Short biographic data on Serhii Samiilovych Hembytskyi, who was one of the first researchers of hydrogeology and engineering geology of Dnipropetrovsk region, was presented. His role in Dnipropetrovsk scientific and educational institutions formation, particularly the Research Institute of Geology of the Oles Honchar Dnipropetrovsk National Univers...
Conference Paper
Full-text available
Coaly sandy and clay deposits with spicules of the Upper Eocene sponges are discovered in the Middle Dnieper region. They are recorded in boreholes and Rybalsky quarry (Dnipropetrovsk). These deposits substitute unique Mandrykovka layers (Upper Eocene, zone NP 19 Isthmolithus recurvus on the scale of E. Martini) or cover them. There are need in det...
Article
Full-text available
The paper gives the brief bibliographical information about the publishing activities of the Research Institute of Geology of Oles Honchar Dnipropetrovsk National University from 1926 till 1927. Some details about the history of the institute are presented too. Among the editions are considered «Scientific notes of the Dnipropetrovsk (Ekaterinoslav...
Article
Full-text available
For the first time a clear lithological and facial signs of Mandrykovka unique Beds in the Upper Eocene in Ukraine are grounded. Information about their distribution, general geological position, lithology, fauna distribution is given. Results of paleogeographic reconstructions are presented. The importance of a facial and paleogeographic features...
Conference Paper
Full-text available
В основу работы положены материалы, собранные автором в ходе многолетних исследований марганцевых руд и вмещающих их отложений на Никопольском и Большетокмакском месторождениях. Автором также использованы коллекции и фонды НИИ геологии Днепропетровского национального университета (сборы В.В. Богдановича, В.И. Грязнова, И.С. Данилова) и Днепропетров...
Article
Full-text available
The paper gives the information about scientific school of paleontology and stratigraphy of the Research Institute of Geology of Oles Honchar Dnipropetrovsk National University. Bibliographical data of its founder M.F. Nosovskyi are presented here. Some measures to preserve scientific schools in Ukraine are proposed by the author of this paper.
Article
Full-text available
Приведены новые данные по губкам из морских нормальносоленых среднеэоценовых (киевских) отложений переходной углистой толщи Сурской депрессии Украинского щита. Установлено 12 родов «мягких», литистидных и шестилучевых губок, обитавших в условиях мелководного (глубина не более 20 м) Сурского залива. Совместное нахождение карбонатной и бескарбонатной...
Conference Paper
Full-text available
Уникальные в палеонтологическом отношении мандрыковские слои верхнего эоцена были впервые установлены Н.А. Соколовым в 1893 г. в пос. Мандрыковка (ныне ул. Мандрыковская, г. Днепропетровск) и до настоящего времени имеют важнейшее значение для геокартирования и стратиграфии Украины и Западной Европы. Их распространение ограничено южной частью г. Дне...
Conference Paper
Full-text available
The research area covers the southeastern part of the Dnieper-Donets Basin and the adjacent part of the Ukrainian Shield, where the Paleogene sediments are developed in depressions of the crystalline basement. In the Dnieper-Donets basin the deposits of the Kiev Regiostage are represented by marls, carbonate clays, quartz-glauconite sands, in the d...
Article
Full-text available
Complex analysis of paleontological remains, lithology and cyclic recurrenc of sedimentation Lower Cenomanians formations of considered regions have been allowed to obtain for first time the sediments of three basins (Black Sea coast, Carpatian, Borealen (Buelorussian)) and corellate their relationships. For first time two suites for the formations...
Article
Full-text available
В статье приведены данные, которые свидетельствуют о неоднородном литологическом составе райгород-ской толщи центрального района Украинского щита и формировании ее в течение позднего маастрихта – раннего палеоцена. Образования позднего маастрихта в объеме зоны Nephrolithus frequens, представленные туфами, установлены в пределах Тясминской депрессии...
Article
Full-text available
Приведены новые прогнозно-поисковые критерии алмазоносности райгородской толщи Украинского щита. Установлено, что перспективность ее алмазоносности обусловлена находками алмазов, их минералов-спутников, а также сходством петрографического состава с вулканокластическими кимберлитами, которые аккумулировались в мелководных морских бассейнах.
Article
Full-text available
The Raygorod sediments of Gruzsk area of Kirovograd region, which formed in paleocen, have sedimentory-volcanic genesis. Generation of residual soil in diamondferous rocks of Raygorod strata indicate on resedimentation and accumulation of diamonds in continental environment.

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Projects

Projects (4)
Project
Correlation of Eocene and Lower Oligocene sedimentary rocks of Ukraine and Western Europe. The solution of the stratification problems on Eocene/Oligocene and Middle Eocene/Late Eocene borders in Ukraine. Revision of associations Bivalvia of Ukrainian Paleogene.
Project
Improvement of geological and lithological maps, and search criteria of sedimentary minerals in the Ukrainian part of the Black Sea region and the south-eastern part of the Ukrainian Shield.
Archived project
Goal: The project is focused on the palaeogeographical and paleoclimatic reconstructions and studying the relationship of biodiversity in the Southern Ukraine part of the Paratethys during the Late Eocene and Neogene with geological and climatic events.