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undergraduate thesis
Modalni sastav i strukturne značajke pijeska s lokaliteta Mos Espa u Tunisu
Zagreb: University of Zagreb, Faculty of Science, 2024. urn:nbn:hr:217:323420
Bandov, Magdalena
University of Zagreb
Faculty of Science
Department of Geology

Institutional repository: Repository of the Faculty of Science

Cite this document

Bandov, M. (2024). Modalni sastav i strukturne značajke pijeska s lokaliteta Mos Espa u Tunisu (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:323420

Bandov, Magdalena. "Modalni sastav i strukturne značajke pijeska s lokaliteta Mos Espa u Tunisu." Undergraduate thesis, University of Zagreb, Faculty of Science, 2024. https://urn.nsk.hr/urn:nbn:hr:217:323420

Bandov, Magdalena. "Modalni sastav i strukturne značajke pijeska s lokaliteta Mos Espa u Tunisu." Undergraduate thesis, University of Zagreb, Faculty of Science, 2024. https://urn.nsk.hr/urn:nbn:hr:217:323420

Bandov, M. (2024). 'Modalni sastav i strukturne značajke pijeska s lokaliteta Mos Espa u Tunisu', Undergraduate thesis, University of Zagreb, Faculty of Science, accessed 28 March 2025, https://urn.nsk.hr/urn:nbn:hr:217:323420

Bandov M. Modalni sastav i strukturne značajke pijeska s lokaliteta Mos Espa u Tunisu [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Science; 2024 [cited 2025 March 28] Available at: https://urn.nsk.hr/urn:nbn:hr:217:323420

M. Bandov, "Modalni sastav i strukturne značajke pijeska s lokaliteta Mos Espa u Tunisu", Undergraduate thesis, University of Zagreb, Faculty of Science, Zagreb, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:217:323420

Metadata
TitleModalni sastav i strukturne značajke pijeska s lokaliteta Mos Espa u Tunisu
Title (english)Modal composition and textural characteristics of sand from Mos Espa locality, Tunisia
AuthorMagdalena Bandov
MentorMarijan Kovačić (mentor)
Committee memberMarijan Kovačić (predsjednik povjerenstva)
Committee memberFrane Marković (član povjerenstva)
Committee memberKarmen Fio Firi (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Geology)
Zagreb
Defense date and country2024-09-23, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Geology
Abstract
Na području sjeverne Sahare, točnije na lokalitetu Mos Espa u Tunisu, uzet je uzorak pijeska s ciljem utvrđivanja njegovih strukturnih značajki i modalnog sastava. Granulometrijska analiza pokazala je da se radi o srednje sortiranom srednjezrnastom pijesku koji sadrži preko 98 % čestica veličine pijeska. Analiza sferičnosti i zaobljenosti zrna pod optičkom lupom pokazala je da su čestice najčešće poluzaobljene do dobro zaobljene i da sferičnost i zaobljenost čestica raste s veličinom frakcije.... More Iste značajke utvrđene su i SEM analizom. SEM analizom utvrđene su i značajke zrna koje sugeriraju eolski transport materijala. Analiza modalnog sastava pokazala je da u pijesku dominiraju minerali iz lake mineralne frakcije. Među njima dominira kremen (72 %) dok su feldspati (21 %) i čestice stijena (7 %) znatno rjeđi. U sastavu teške mineralne frakcije prevladavaju prozirni teški minerali (65 %) i opaki minerali (30 %), dok su biotit i klorit izrazito rijetki. Među prozirnim teškim mineralima najzastupljeniji su cirkon (34 %) i epidot (22 %), a značajnije su još zastupljeni turmalin, rutil, staurolit i granati. Dobiveni rezultati ukazuju na to da se radi o minerološki i strukturno zrelom sedimentu. Less
Abstract (english)
In the northern Sahara region, specifically at the Mos Espa site in Tunisia, a sand sample was taken with the aim to determine its structural characteristics and modal composition. Granulometric analysis revealed that it is a moderately sorted, medium-grained sand containing over 98% sand-sized particles. Sphericity and roundness analysis under an optical magnifying glass showed that the particles are most commonly sub-rounded to well-rounded, and that both sphericity and roundness increase... More with particle size. The same characteristics were confirmed by SEM analysis. SEM analysis also identified grain features that suggest aeolian transport of the material. Modal composition analysis showed that minerals from the light mineral fraction dominate the sand. Among them, quartz is predominant (72%), while feldspars (21%) and rock fragments (7%) are significantly less common. In the heavy mineral fraction, transparent heavy minerals (65%) and opaque minerals (30%) are prevalent, while biotite and chlorite are extremely rare. Among the transparent heavy minerals, zircon (34%) and epidote (22%) are the most abundant, with tourmaline, rutile, staurolite, and garnets also significantly represented. The obtained results indicate that this is a mineralogically and structurally mature sediment. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:323420
Study programmeTitle: Geology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) geologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) geologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2025-02-04 13:35:44
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