Genesis and depositional environment of organic-rich sediments in the Neogene organic-rich sediments from the Aleksinac deposit (Serbia): Part B.
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| Title: | Genesis and depositional environment of organic-rich sediments in the Neogene organic-rich sediments from the Aleksinac deposit (Serbia): Part B. |
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| Authors: | Gajica, Gordana1 gordana.gajica@ihtm.bg.ac.rs, Šajnović, Aleksandra1, Stojanović, Ksenija2, Antonijević, Milan D.3, Kostić, Aleksandar4, Jovančićević, Branimir2 |
| Source: | Oil Shale. 2026, Vol. 43 Issue 1, p75-103. 29p. |
| Subjects: | Paleoenvironmental studies, Composition of sediments, Volcanology, Hydrothermal deposits, Biogenic sedimentary rocks, Lake hydrology |
| Geographic Terms: | Serbia |
| Abstract: | To determine the characteristics of the palaeoenvironment that affected organic richness, the Neogene organic-rich sediments in the Upper layer of the Aleksinac deposit (Dubrava block, Serbia) were examined. The studied samples are presumed to be of andesitic to felsic origin, with evidence of volcanic activity. Sediment generation was influenced by hydrothermal fluids, which promoted the productivity of aquatic organisms and led to organic enrichment. Clastic input brought trace and rare earth elements into the basin. Palaeoenvironmental indicators derived from concentrations of major, trace, and rare earth elements show good accordance with organic geochemical data obtained in previous detailed studies, indicating deposition of the sediments in an anoxic lacustrine environment of variable salinity under warm, arid, and semiarid/semihumid climatic conditions. Such settings favoured primary bioproductivity in the lake, whereas a stable, stratified water column with highly reducing bottom water enhanced organic matter preservation. The lowering of total organic carbon content was mainly controlled by more humid episodes that promoted clastic influx and decreased organic matter concentration, rather than by changes in anoxic redox conditions. [ABSTRACT FROM AUTHOR] |
| Copyright of Oil Shale is the property of Teaduste Akadeemia Kirjastus and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 192026449 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Genesis and depositional environment of organic-rich sediments in the Neogene organic-rich sediments from the Aleksinac deposit (Serbia): Part B. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Gajica%2C+Gordana%22">Gajica, Gordana</searchLink><relatesTo>1</relatesTo><i> gordana.gajica@ihtm.bg.ac.rs</i><br /><searchLink fieldCode="AR" term="%22Šajnović%2C+Aleksandra%22">Šajnović, Aleksandra</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Stojanović%2C+Ksenija%22">Stojanović, Ksenija</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Antonijević%2C+Milan+D%2E%22">Antonijević, Milan D.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Kostić%2C+Aleksandar%22">Kostić, Aleksandar</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Jovančićević%2C+Branimir%22">Jovančićević, Branimir</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Oil+Shale%22">Oil Shale</searchLink>. 2026, Vol. 43 Issue 1, p75-103. 29p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Paleoenvironmental+studies%22">Paleoenvironmental studies</searchLink><br /><searchLink fieldCode="DE" term="%22Composition+of+sediments%22">Composition of sediments</searchLink><br /><searchLink fieldCode="DE" term="%22Volcanology%22">Volcanology</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrothermal+deposits%22">Hydrothermal deposits</searchLink><br /><searchLink fieldCode="DE" term="%22Biogenic+sedimentary+rocks%22">Biogenic sedimentary rocks</searchLink><br /><searchLink fieldCode="DE" term="%22Lake+hydrology%22">Lake hydrology</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Serbia%22">Serbia</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: To determine the characteristics of the palaeoenvironment that affected organic richness, the Neogene organic-rich sediments in the Upper layer of the Aleksinac deposit (Dubrava block, Serbia) were examined. The studied samples are presumed to be of andesitic to felsic origin, with evidence of volcanic activity. Sediment generation was influenced by hydrothermal fluids, which promoted the productivity of aquatic organisms and led to organic enrichment. Clastic input brought trace and rare earth elements into the basin. Palaeoenvironmental indicators derived from concentrations of major, trace, and rare earth elements show good accordance with organic geochemical data obtained in previous detailed studies, indicating deposition of the sediments in an anoxic lacustrine environment of variable salinity under warm, arid, and semiarid/semihumid climatic conditions. Such settings favoured primary bioproductivity in the lake, whereas a stable, stratified water column with highly reducing bottom water enhanced organic matter preservation. The lowering of total organic carbon content was mainly controlled by more humid episodes that promoted clastic influx and decreased organic matter concentration, rather than by changes in anoxic redox conditions. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Oil Shale is the property of Teaduste Akadeemia Kirjastus and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3176/oil.2026.1.04 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 29 StartPage: 75 Subjects: – SubjectFull: Paleoenvironmental studies Type: general – SubjectFull: Composition of sediments Type: general – SubjectFull: Volcanology Type: general – SubjectFull: Hydrothermal deposits Type: general – SubjectFull: Biogenic sedimentary rocks Type: general – SubjectFull: Lake hydrology Type: general – SubjectFull: Serbia Type: general Titles: – TitleFull: Genesis and depositional environment of organic-rich sediments in the Neogene organic-rich sediments from the Aleksinac deposit (Serbia): Part B. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Gajica, Gordana – PersonEntity: Name: NameFull: Šajnović, Aleksandra – PersonEntity: Name: NameFull: Stojanović, Ksenija – PersonEntity: Name: NameFull: Antonijević, Milan D. – PersonEntity: Name: NameFull: Kostić, Aleksandar – PersonEntity: Name: NameFull: Jovančićević, Branimir IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 0208189X Numbering: – Type: volume Value: 43 – Type: issue Value: 1 Titles: – TitleFull: Oil Shale Type: main |
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