Mineraloška obilježja panonskih lapora i pripadajućih tala na području između Bačuna i Kašine, Medvednica

master's thesis

• Title (english): Mineralogical properties of Pannonian marl and related soils in the area between Bačun and Kašina, Mt Medvednica
• Author: Anja Paradžik
• Mentor: Nenad Tomašić (mentor)
• Committee member: Nenad Tomašić (predsjednik povjerenstva)
• Committee member: Marijan Kovačić (član povjerenstva)
• Committee member: Đurđica Pezelj (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2017-02-07, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology; Mineralogy and Petrology

Abstract

Ovaj rad se bavi proučavanjem raspodjele minerala glina kroz horizonte tla i lapora jugoistočnih padina Medvednice na lokalitetima Markuševec, Furdini, Kašina i Bačun. Kalcimetrijom je određen udio karbonatne komponente koja se povećava idući od horizonta A do horizonta C. Aciditet je određen mjerenjem supstitucijske i stvarne kiselosti. Laboratorijskim postupcima za potrebe izrade orijentiranih preparata uklonjeni su karbonati, organska tvar i Fe-Al-Mn oksidi/oksihidroksidi. Metoda rendgenske difrakcijske analize provedena je na neorijentiranim i orijentiranim preparatima. Neorijentirani preparati pokazali su cjelokupni sastav prije uklanjanja karbonata, organske tvari i Fe-Al-Mn oksida/oksihidroksida, dok su na orijentiranim preparatima identificirani samo minerali glina na temelju karakterističnih bazalnih maksimuma. Na neorijentiranim preparatima pronađeni su kvarc, dolomit, kalcit, klorit, illit-muskovit dok su u orijentiranim preparatima identificirani illit, klorit te mješanoslojna glina illit/smektit. Kapacitet kationske izmjene (CEC) mjeren je pomoću bakrovog etilendiaminskog kompleksa na uzorcima prije i nakon uklanjanja prethodno spomenutih faza. U vršnom horizontu svakog lokaliteta vrijednosti CEC-a prije uklanjanja faza su znatno veće.

Abstract (english)

The aim of this Masters thesis was to determine the distribution of clay minerals in soil horizons and marls at four different localities: 1 Markuševec, 2 Furdini, 3 Kašina, 4 Bačun, all set on the southeast part of Mt. Medvednica. The calcimetry measurments were carried out in order to determine the amount of carbonates in samples. Furthermore, substitutional and actual adicity was determined. The carbonates, organic matter and Fe-Al- Mn oxides/oxyhydroxide were removed from samples prior to the clay mineral analysis. Xray diffraction analysis was performed on unoriented (before removing carbonates, organic matter and Fe-Al-Mn oxides/oxyhydroxides) and oriented (after removing the mentioned phases) samples. XRD analysis of the unoriented samples showed the presence of quartz, illite, chlorite, calcite and dolomite. Clay minerals were identified based on their characteristic basal reflections. The present clay minerals were identified as illite, chlorite and mixed layer clay (illite/smectite). Cation exchange capacity (CEC) was determined using copper ethylenediamine complex, and it was measured before and after the removal of carbonates, organic matter and Fe-Al-Mn okside/hidrokside. The results of CEC measuring show that in the uppermost horizons at all four localities the CEC values are decreasing after the removal of the metioned components.

• Keywords: minerali glina; tlo; lapor; Medvednica; kalcimetrija; aciditet; karbonati; organska tvar; Fe-Al-Mn oksida/oksihidroksidi; rendgenska difrakcija; CEC
• Keywords (english): clay minerals; soil; marl; Medvednica; calcimetry; adicity; carbonates; organic matter; Fe-Al-Mn oxides/oxyhydroxides; X-ray diffraction; CEC
• Language: croatian
• URN:NBN: urn:nbn:hr:217:189094
• Study programme: Title: Graduate university study of 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
• Created on: 2017-02-13 07:43:40