Karakteristike peloidnih sedimenata uvale Segal na otoku Pagu

master's thesis

• Title (english): Characteristics of the peloid mud from Segal Bay of Pag island
• Author: Silvia Ilijanić
• Mentor: Esad Prohić (mentor)
• Committee member: Esad Prohić (predsjednik povjerenstva)
• Committee member: Damir Bucković (član povjerenstva)
• Committee member: Dražen Kurtanjek (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2016-10-24, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology

Abstract

U ovom radu analizirani su uzorci peloidnih sedimenata s dvije lokacije iz uvale Segal na otoku Pagu. Na uzorcima je mjeren udio karbonatne komponente Scheiblerovom metodom koji iznosi oko 30% za obje lokacije. Određena je fazna analiza korištenjem difrakcijske tehnike metodom praha (XRD metoda) čime je utvrđeno kako uzorci s obje lokacije sadrže kvarc, kalcit, halit i aragonit te su određeni minerali glina (kaolinit, muskovit/ilit). Određen je pH uzoraka pri čemu smo uvidjeli kako se radi o blago alkalnom sedimentu (pH7,5-8), a granulometrijski sastav određen metodom laserske difrakcije pokazao je kako udio pjeskovite komponente dominira. Kapacitet ionske izmjene (CEC) iznosi oko 47 mmolekv/100g za prvu lokaciju i 61 mmolekv/100g za drugu, dok je specifična površina (SSA) određivana na uređaju Micromeritics Flow Sorb II 2300, za prvu lokaciju iznosila 22 m2g-1, a za drugu lokaciju 6 m2g-1. Ukupna količina sumpora u sedimentu određivana je Eschka metodom na prvoj lokaciji, pri čemu je utvrđeno oko 2,5% sumpora što je veoma pogodno za uporabu u kozmetičke i medicinske svrhe. Također, određen je ukupni kemijski sastav sedimenta metodom atomske emisijske spektroskopije s induktivno spregnutom plazmom (ICP-AES).

Abstract (english)

This paper analyses samples of peloid sediments collected from two locations at the Segal cove on the island of Pag. The samples were analysed for the quantity of the carbonate content, using the Scheibler method, which is approximately 30% on both locations. Phase analysis was determined using the X-ray powder diffraction technique (XRD). The results showed that the samples from both locations contain quartz, calcite, halite, and aragonite. Clay minerals were also determined (kaolinite, muscovite/illite). Measurement of pH of the samples indicated that this was a mild alkaline sediment (pH7,5-8) and the granulometric composition determined using the laser diffraction method showed that the quantity of sand component is dominant. Cation exchange capacity (CEC) is approximately 47 mmolekv/100g at the first location and 61 mmolekv/100g at the second location, while the specific surface area (SSA) was measured on a Micromeritics Flow Sorb II 2300. It amounted to 22 m2g-1 for the first location and 6 m2g-1 for the second location. At the first location, the total sulphur content in the sediment was measured using the Eschka method and the result was approximately 2.5%, which is very suitable for cosmetic and medical purposes. Moreover, overall chemical composition of the sediments was measured using inductively coupled plasma atomic emission spectroscopy (ICP-AES).

• Keywords: peloidi; ljekovito blato; Pag; XRD; LDS; SSA; CEC; ICP-AES; Eschka
• Keywords (english): peloids; medical mud; Pag; XRD; LDS; SSA; CEC; ICP-AES; Eschka method
• Language: croatian
• URN:NBN: urn:nbn:hr:217:967596
• Study programme: Title: Graduate university study of Environmental Geology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra geologije (magistar/magistra geologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Public note: Ovaj diplomski rad izrađen je na Mineraloško-Petrografskom zavodu Geološkog odsjeka, pod vodstvom prof. dr. sc. Esada Prohića i neposrednim vodstvom dr. sc. Hane Fajković, u sklopu navedenog studija.
• Created on: 2017-02-27 12:41:56