Željezni meteoriti (sideriti): vrste i njihovo dokazivanje

undergraduate thesis

• Title (english): Iron meteorites (siderite): types and their determination
• Author: Tonka Buha
• Mentor: Nenad Tomašić (mentor)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2019, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Cilj ovog završnog seminara je dati sažeti osvrt i literaturni pregled, na dosadašnja saznanja o meteoritima i njihovoj determinaciji s naglaskom na željezne meteorite, siderite. Uz to, provedena je i determinacija željeznih meteorita pomoću XRD i XRF analize na tri uzorka sakupljena na području Republike Hrvatske za koja se pretpostavlja da su vanzemaljskog podrijetla. Uzorci su donesi sa tri različita lokaliteta na području Republike Hrvatske. Određen im je kvalitativni i kvantitativni sastav. Analizirani uzorci nisu pokazivali građu karakterističnu za željezne meteorite u kojoj prevladava željezo i nikal. U jednom analiziranom uzorku je prevladavao krom, dok u druga dva uzorka mangan. Nije pronađena niti jedna mineralna faza karakteristična za meteorite.

Abstract (english)

The aim of this final seminar is to provide concise and literature review, on the present knowledge of meteorites and their determination with emphasis on iron meteorites (siderites). In addition, for example of iron meteorite determination, XRD and XRF analysis of three potential extraterrestrial samples from three different localities in the Republic of Croatia was performed. The qualitative and quantitative composition was determined. The analyzed samples did not show elemental composition characteristic for iron meteorites in which iron and nickel are predominant. In one analyzed sample the predominating element was chromium, while in the other two samples it was manganese. No mineral phase characteristic for meteorites was found.

• Keywords: meteorioti; željezni meteoriti
• Language: croatian
• URN:NBN: urn:nbn:hr:217:632838
• Study programme: Title: Environmental Sciences; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-09-26 12:45:32