Porijeklo i sastav sedimenata rijeke Mure

master's thesis

• Title (english): The origin and composition of the Mura River sediments
• Author: Sandro Tomić
• Mentor: Željka Fiket (mentor)
• Mentor: Marijan Kovačić (komentor)
• Committee member: Željka Fiket (predsjednik povjerenstva)
• Committee member: Marijan Kovačić (član povjerenstva)
• Committee member: Blanka Cvetko Tešović (član povjerenstva)
• Committee member: Katarina Gobo (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2025-02-25, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology

Abstract

U ovome radu analiziran je granulometrijski i modalni sastav te ukupna koncentracija metala u recentnim riječnim sedimentima. Uzorci su prikupljeni s 11 različitih lokacija duž dijela toka rijeke Mure koji prolazi Republikom Hrvatskom. Rezultati granulometrijskih analiza pokazali su da se većina sedimenata može determinirati kao srednje do vrlo loše sortirani prahoviti pijesak. Analizom modalnog sastava utvrđeno da je kvarc najzastupljeniji sastojak sedimenata. U zajednici teških minerala najzastupljeniji su granati, amfiboli i minerali iz skupine epidota. Utvrđena mineralna zajednica karakteristična je za sedimente porijeklom iz istočnih Alpa. Analizom ukupnih koncentracija 18 elemenata u prikupljenim sedimentima utvrđeno je da su koncentracije metala poput Cr, Al, Zn, Co, Ni, Sn povišene u odnosu na literaturne podatke. Smatra se da su glavni razlozi tome uglavnom antropogene prirode, a među njima ističu se nekadašnji rudnici ugljena na tome prostoru, velika farmaceutska industrija i poljoprivredne aktivnosti.

Abstract (english)

In this study, the grain size and mineral composition as well as the total element concentration in recent river sediments were analysed. Samples were taken from 11 different locations along the part of the Mura River that flows through the Republic of Croatia. The results of the grain size analyses showed that most of the sediments can be determined as medium to very poorly sorted silty sand. The analysis of the mineral composition showed that quartz is the most abundant component of the sediments. The most abundant heavy minerals are garnets, amphiboles and minerals from the epidote group. The identified mineral assemblage is characteristic for sediments from the Eastern Alps. The analysis of the total concentrations of 18 elements in the collected sediments showed that the concentrations of metals such as Cr, Al, Zn, Co, Ni, Sn are elevated compared to literature data. It is assumed that the main reasons for this are of anthropogenic nature, such as former coal mines in the region, large pharmaceutical industry and agricultural activities.

• Keywords: Mura; koncentracije metala; granulometrijski i modalni sastav; porijeklo sedimenata
• Keywords (english): Mura; metal concentrations; granulometric and modal composition; origin of sediments
• Language: croatian
• URN:NBN: urn:nbn:hr:217:630379
• Study programme: Title: Environmental Geology; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni magistar/magistra geologije (sveučilišni magistar/magistra geologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2026-02-25
• Created on: 2025-03-04 13:34:51