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doctoral thesis
Elementna i strukturna analiza impaktom rastaljenih stijena i staklenih sferula
Zagreb: University of Zagreb, Faculty of Science, 2020. urn:nbn:hr:217:051169
Čalogović, Marina
University of Zagreb
Faculty of Science
Department of Chemistry

Institutional repository: Repository of the Faculty of Science

Cite this document

Čalogović, M. (2020). Elementna i strukturna analiza impaktom rastaljenih stijena i staklenih sferula (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:051169

Čalogović, Marina. "Elementna i strukturna analiza impaktom rastaljenih stijena i staklenih sferula." Doctoral thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:051169

Čalogović, Marina. "Elementna i strukturna analiza impaktom rastaljenih stijena i staklenih sferula." Doctoral thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:051169

Čalogović, M. (2020). 'Elementna i strukturna analiza impaktom rastaljenih stijena i staklenih sferula', Doctoral thesis, University of Zagreb, Faculty of Science, accessed 25 December 2024, https://urn.nsk.hr/urn:nbn:hr:217:051169

Čalogović M. Elementna i strukturna analiza impaktom rastaljenih stijena i staklenih sferula [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Science; 2020 [cited 2024 December 25] Available at: https://urn.nsk.hr/urn:nbn:hr:217:051169

M. Čalogović, "Elementna i strukturna analiza impaktom rastaljenih stijena i staklenih sferula", Doctoral thesis, University of Zagreb, Faculty of Science, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:217:051169

Metadata
TitleElementna i strukturna analiza impaktom rastaljenih stijena i staklenih sferula
Title (english)Elemental and structural analysis of imapct melt-rocks and glass spherules
AuthorMarina Čalogović
MentorTihomir Marjanac (mentor)
MentorErnest Meštrović (mentor)
Committee memberSanda Rončević (predsjednik povjerenstva)
Committee memberGoran Štefanić (član povjerenstva)
Committee memberŽeljka Soldin (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2020-03-13, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Universal decimal classification
(UDC)		54 - Chemistry. Crystallography. Mineralogy
Abstract
Elementni i mineralni sastav uzoraka stijena za koje se pretpostavljalo da su nastale iz impaktnih taljevina, analizirani su metodama TXRF, ICP-AES, PIXE i XRD, a staklene sferule i mikroskopske čestice analizirane su metodom :-PIXE. Za morfološku karakterizaciju površine i elementni sastav uzoraka u mikro-mjerilu korištena je metoda SEM-EDS. Analitičke metode TXRF, ICP-AES i PIXE primijenjene na istim uzorcima dale su usporedive rezultate. Elementne analize uzoraka stijena s otoka Krka, Raba i Cresa pokazale su da uzorci imaju heterogeni sastav i da nisu vulkanskog ni antropogenog porijekla. Elementni sastav analiziranih uzoraka ukazuje da su izvorišne stijene bile po sastavu slične lesu, te da bi mogli biti impaktno staklo iz predložene impaktne strukture na otoku Krku. Sferule permske starosti koje su po prvi put nađene, mogle su nastati uslijed impakta u današnjoj južnoj Kini. Sferule i mikrotektiti eocenske starosti vjerojatno su distalni izbačaj iz kratera Popigai (Rusija) i impaktne strukture Chesapeake Bay (SAD), dok su sferule miocenske starosti vjerojatno distalni izbačaj iz kratera Ries (Njemačka). Sferule pleistocenske starosti mogu potjecati iz predložene impaktne strukture na otoku Krku na što ukazuje njihov elementni sastav.
Abstract (english)
Elemental and mineral compositions of suspected impact glass samples were analysed by TXRF, ICP-AES, PIXE and XRD methods. Glass spherules and microscopic particles were analysed by :-PIXE method. For morphological characterization of surface and elemental composition on micro-scale SEM-EDS method was used. Analytical methods TXRF, ICP-AES and PIXE applied on the same samples gave comparable results. The analyses of rock samples from Krk, Rab and Cres Islands documented their heterogeneous composition and denied their volcanic or anthropogenic origin. Elemental composition of analysed samples indicates their origin from rocks similar to loess by chemical composition and that they could represent impact glass from proposed impact structure on Krk Island. Spherules of Permian age, first reported herein, could originate from an unknown impact crater located somewhere in today's South China. Spherules and microtektites of Eocene age could be distal ejecta from Popigai crater (Russia) and Chesapeake Bay impact structure (USA), whereas spherules of Miocene age could originate from the Ries crater (Germany). Spherules of Pleistocene age probably originated from the proposed Krk impact structure as suggested by their elemental composition.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:051169
Promotion2020
Study programmeTitle: Doctoral study in chemistry
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija (doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija)
Type of resourceText
Extent160 str. ; 30 cm
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-06-16 11:11:50