prikaz prve stranice dokumenta Mineraloške i geokemijske karakteristike špiljskog sedimenta Đulinog ponora
Embargo period 2025-02-20
master's thesis
Mineraloške i geokemijske karakteristike špiljskog sedimenta Đulinog ponora
Zagreb: University of Zagreb, Faculty of Science, 2023. urn:nbn:hr:217:572448
Ercegovac, Ana
University of Zagreb
Faculty of Science
Department of Geology

Institutional repository: Repository of the Faculty of Science

Cite this document

Ercegovac, A. (2023). Mineraloške i geokemijske karakteristike špiljskog sedimenta Đulinog ponora (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:572448

Ercegovac, Ana. "Mineraloške i geokemijske karakteristike špiljskog sedimenta Đulinog ponora." Master's thesis, University of Zagreb, Faculty of Science, 2023. https://urn.nsk.hr/urn:nbn:hr:217:572448

Ercegovac, Ana. "Mineraloške i geokemijske karakteristike špiljskog sedimenta Đulinog ponora." Master's thesis, University of Zagreb, Faculty of Science, 2023. https://urn.nsk.hr/urn:nbn:hr:217:572448

Ercegovac, A. (2023). 'Mineraloške i geokemijske karakteristike špiljskog sedimenta Đulinog ponora', Master's thesis, University of Zagreb, Faculty of Science, accessed 04 June 2024, https://urn.nsk.hr/urn:nbn:hr:217:572448

Ercegovac A. Mineraloške i geokemijske karakteristike špiljskog sedimenta Đulinog ponora [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2023 [cited 2024 June 04] Available at: https://urn.nsk.hr/urn:nbn:hr:217:572448

A. Ercegovac, "Mineraloške i geokemijske karakteristike špiljskog sedimenta Đulinog ponora", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:217:572448

Metadata
TitleMineraloške i geokemijske karakteristike špiljskog sedimenta Đulinog ponora
Title (english)Mineralogical and geochemical properties of cave sediment from Đulin ponor
AuthorAna Ercegovac
MentorHana Fajković (mentor)
MentorDalibor Paar (komentor)
Committee memberHana Fajković (predsjednik povjerenstva)
Committee memberDalibor Paar (član povjerenstva)
Committee memberKristina Pikelj (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Geology)
Zagreb
Defense date and country2023-02-20, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Geology
Geology and Paleontology
Abstract
Speleološki objekti značajni su u istraživanjima okoliša jer predstavljaju zamke za sedimente te je zato u Đulinom ponoru uzorkovano 9 uzoraka sedimenta i 14 uzoraka plastike kako bi se istražio antropogeni utjecaj. Uzorci su analizirani sljedećim metodama: fazna analiza, FTIR – ATR spektroskopija, kalcimetrija, voltametrija i izdvajanje mikroplastike iz sedimenata SPT-om. U svim uzorcima sedimenta determinirane su mineralne faze kalcit i kvarc, a u nekim uzorcima još su determinirani feldspati, dolomit i ankerit. U reprezentativnom uzorku su determinirani minerali glina klorit, illit i kaolinit. Kalcimetrijom je određivan udio karbonatna za 10 uzoraka i rezultati ukazuju da se u prosjeku radi o sedimentima s visokim udjelom karbonata, a raspon je 25 % - 75 %. U svim uzorcima sedimenta pronađena je mikroplastika, a najveći je broj čestica mikroplastike u uzorku ĐULA SPT 2 s 341 česticom mikroplastike na 1 gram sedimenta. Od 14 uzoraka plastike determiniranih FTIR – ATR spektroskopijom, najzastupljeniji polimer je polistiren. Prema rezultatima voltametrije potencijalno toksični metal koji ima najveći afinitet adsorpcije na plastiku je cink.
Abstract (english)
Speleological objects are important in environmental research because they represent traps for sediments, which is why 9 sediment samples and 14 plastic samples were collected in Đulin ponor in order to investigate anthropogenic influence. The samples were analyzed by the following methods: phase analysis, FTIR – ATR spectroscopy, calcimetry, voltammetry and separation of microplastics from sediments by SPT. The mineral phases calcite and quartz were determined in all sediment samples, and feldspar, dolomite and ankerite were also co-determined in some samples. The clay minerals chlorite, illite and kaolinite were determined in representative sample. Calcimetry was used to determine the percentage of carbonate for 10 samples, and the results indicate that, on average, these are sediments with a high percentage of carbonate, and the range is 25% - 75%. Microplastics were found in all sediment samples, and the largest number of microplastic particles was in the ĐULA SPT 2 sample with 341 microplastic particles per 1 gram of sediment. Of the 14 plastic samples determined by FTIR - ATR spectroscopy, the most represented polymer is polystyrene. According to the voltammetry results, the potentially toxic metal that has the highest adsorption affinity on plastic is zinc.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:572448
Study programmeTitle: Graduate university study of Environmental Geology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra geologije (magistar/magistra geologije)
Type of resourceText
File originBorn digital
Access conditionsEmbargoed access
Embargo expiration date: 2025-02-20
Terms of useLicence In copyright icon
Created on2023-06-21 08:56:39