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master's thesis
Foraminiferska zajednica srednjeg šelfa Sredozemnog mora (odobalje Sicilije)
Zagreb: University of Zagreb, Faculty of Science, 2020. urn:nbn:hr:217:071957
Damjanović, Tamara
University of Zagreb
Faculty of Science
Department of Geology

Institutional repository: Repository of the Faculty of Science

Cite this document

Damjanović, T. (2020). Foraminiferska zajednica srednjeg šelfa Sredozemnog mora (odobalje Sicilije) (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:071957

Damjanović, Tamara. "Foraminiferska zajednica srednjeg šelfa Sredozemnog mora (odobalje Sicilije)." Master's thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:071957

Damjanović, Tamara. "Foraminiferska zajednica srednjeg šelfa Sredozemnog mora (odobalje Sicilije)." Master's thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:071957

Damjanović, T. (2020). 'Foraminiferska zajednica srednjeg šelfa Sredozemnog mora (odobalje Sicilije)', Master's thesis, University of Zagreb, Faculty of Science, accessed 25 November 2024, https://urn.nsk.hr/urn:nbn:hr:217:071957

Damjanović T. Foraminiferska zajednica srednjeg šelfa Sredozemnog mora (odobalje Sicilije) [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2020 [cited 2024 November 25] Available at: https://urn.nsk.hr/urn:nbn:hr:217:071957

T. Damjanović, "Foraminiferska zajednica srednjeg šelfa Sredozemnog mora (odobalje Sicilije)", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:217:071957

Metadata
TitleForaminiferska zajednica srednjeg šelfa Sredozemnog mora (odobalje Sicilije)
Title (english)Foraminiferan assemblage from the middle shelf of the Mediterranean Sea (Sicily offshore)
AuthorTamara Damjanović
MentorVlasta Ćosović (mentor)
MentorIgor Felja (mentor)
Committee memberVlasta Ćosović (predsjednik povjerenstva)
Committee memberIgor Felja (član povjerenstva)
Committee memberNenad Tomašić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Geology)
Zagreb
Defense date and country2020-02-20, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Geology
Geology and Paleontology
Abstract
U Sicilijanskom kanalu, na dubini od 69 m uzorkovana je plitka sedimentna jezgra. Sedimentna jezgra podijeljena je svakih 5 cm (s izuzetkom najmlađih 5 cm jezgre) u 2 cm debele poduzorke koji su bili mikropaleontološki i granulometrijski analizirani. U sklopu mikropaleontološke analize određeno je ukupno 12 rodova i 20 vrsta foraminifera. Izračunati su indeksi bioraznolikosti, te indeks kisika i akumulacije bentičkih foraminifera, a bentičke foraminifere grupirane su prema ekološkim zahtjevima. Na temelju ekoloških zahtjeva i zastupljenosti vrsta u zajednici, definiran je samo jedan biofacijes, biofacijes Brizalina spathulata, Valvulineria bradyana i Bulimina marginata. Brojčano najzastupljenije vrste toleriraju manje količine otopljenog kisika, a prema indeksu otopljenog kisika uvjeti u okolišu su nisko do srednje oksični. Broj planktonskih foraminifera u zajednici smanjuje kako su intervali stariji, dok zastupljenost vrsta tolerantnih na obogaćenje organskom tvari raste. Granulometrijska analiza pokazala je sastav sedimenta koji odgovara mulju, pretežito sastavljen od praha te je kroz intervale ujednačen, a veličina čestica odgovara području šelfa.
Abstract (english)
At the offshore of Sicily (Mediterranean Sea), a short (35 cm) sediment core from a depth of 69 m was recovered. Chosen 2 cm thick intervals were micropaleontologically and granulometrically analyzed. Altogether, 12 genera and 20 species were determined from eight studied samples. Biodiversity indexes, indexes of oxygen concentration (BFOI) and accumulation rate of benthic foraminifera (BFAR) were calculated, whereas the benthic foraminifera were grouped according to ecological preferences. The biofacies named as Brizalina spathulata, Valvulineria bradyana and Bulimina marginata has been recognized based on abundances of species according to the environmental requirements. The dominant species in the assemblage tolerate dysoxic condition, thus the BFOI index, point to low to medium-oxygenation. The number of planktonic foraminifera in the assemblage decreases with the core depth, while the number of species tolerant to organic matter increases. The granulometric analysis showed mud sediment mainly composed of silt prevails throughout the whole core.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:071957
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 conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-07-14 07:55:13