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Geochronological investigation of the Danube Djerdap Lake sediments (Serbia): sedimentology and inorganic composition

Samo za registrovane korisnike
2020
Autori
Kašanin-Grubin, Milica
Hagemann, Lukas
Gajica, Gordana
Štrbac, Snežana
Jovančićević, Branimir
Vasić, Nebojša
Šajnović, Aleksandra
Đogo-Mračević, Svetlana
Schwarzbauer, Jan
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentu
Apstrakt
The objective of this study is geochronological investigation of sedimentological and inorganic composition, in the Danube Djerdap Lake sediments in order to obtain reliable information about former pollution. Eleven samples were taken from the 135-cm-deep sediment core drilled at the Orlova location. Since the core represents sediments deposited during 1972–2016, the sedimentation rate of ~ 3 cm year−1 was estimated. Grain size, mineralogical and geochemical composition was determined. Sediments are sandy silts and clayey silts, and only the deepest and shallowest layers contain > 30% of sand-size fraction. The highest concentrations of minor elements are found in the oldest sediment (1972–1977) as a consequence of the high flux of the material from variable sources. During the sedimentation period (1975–1990), the concentrations of analyzed elements are generally decreasing until the beginning of 1990s. After this period, there are two distinct decreases and two distinct increases in... concentrations of elements. The fluctuations in minor element concentrations are a consequence of both natural and anthropogenic sources. Granitic rocks situated south are source of minerals that carry minor elements. Enrichment Factor, Geoaccumulation Index, Contamination Factor and Pollution Load Index indicate that concentrations of certain minor elements at specific depositional periods have anthropogenic source.

Ključne reči:
Danube Djerdap Lake / Geochronological investigation / Minor elements / Pollution indices
Izvor:
Environmental Geochemistry and Health, 2020, 42, 2, 693-707
Izdavač:
  • Springer Nature B.V.
Projekti:
  • Geohemijska ispitivanja sedimentnih stena - fosilna goriva i zagađivači životne sredine (RS-176006)
  • Petrogeneza i mineralni resursi Karpato-balkanida i njihov značaj u zaštiti životne sredine (RS-176019)
  • Nove tehnologije za monitoring i zaštitu životnog okruženja od štetnih hemijskih supstanci i radijacionog opterećenja (RS-43009)

DOI: 10.1007/s10653-019-00403-6

ISSN: 0269-4042

WoS: 000515328200025

Scopus: 2-s2.0-85071416968
[ Google Scholar ]
3
2
URI
http://farfar.pharmacy.bg.ac.rs/handle/123456789/3620
Kolekcije
  • Radovi istraživača / Researchers’ publications
Institucija
Pharmacy

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