Geokemijske i tektonomagmatske karakteristike jastučastih bazalta iz ofiolitnih melanža Dinarida

Simat, Sanja

prikaz prve stranice dokumenta Geokemijske i tektonomagmatske karakteristike jastučastih bazalta iz ofiolitnih melanža Dinarida

Access restricted to students and staff of home institution

master's thesis

Geokemijske i tektonomagmatske karakteristike jastučastih bazalta iz ofiolitnih melanža Dinarida

diplomski rad

Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2010. urn:nbn:hr:169:258762

Simat, Sanja

University of Zagreb
Faculty of Mining, Geology and Petroleum Engineering
Department of Mineralogy, Petrology and Mineral Resources

Request a copy
of the document

Cite this document

APA 6th Edition

Simat, S. (2010). Geokemijske i tektonomagmatske karakteristike jastučastih bazalta iz ofiolitnih melanža Dinarida : diplomski rad (Master's thesis). Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:169:258762

MLA 8th Edition

Simat, Sanja. "Geokemijske i tektonomagmatske karakteristike jastučastih bazalta iz ofiolitnih melanža Dinarida : diplomski rad." Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2010. https://urn.nsk.hr/urn:nbn:hr:169:258762

Chicago 17th Edition

Harvard

Simat, S. (2010). 'Geokemijske i tektonomagmatske karakteristike jastučastih bazalta iz ofiolitnih melanža Dinarida : diplomski rad', Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, accessed 19 April 2024, https://urn.nsk.hr/urn:nbn:hr:169:258762

Vancouver

Simat S. Geokemijske i tektonomagmatske karakteristike jastučastih bazalta iz ofiolitnih melanža Dinarida : diplomski rad [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering; 2010 [cited 2024 April 19] Available at: https://urn.nsk.hr/urn:nbn:hr:169:258762

IEEE

S. Simat, "Geokemijske i tektonomagmatske karakteristike jastučastih bazalta iz ofiolitnih melanža Dinarida : diplomski rad", Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Zagreb, 2010. Available at: https://urn.nsk.hr/urn:nbn:hr:169:258762

Cite this item: https://urn.nsk.hr/urn:nbn:hr:169:258762

Please login to the repository to save this object to your list.

Metadata

Title	Geokemijske i tektonomagmatske karakteristike jastučastih bazalta iz ofiolitnih melanža Dinarida : diplomski rad
Title (english)	Geochemical and tectonomagmatic characteristics of pillow basalts from Dinaridic ophiolitic melanges : Graduate engineer of geology thesis
Author	Sanja Simat
Mentor	Boško Lugović (mentor)
Committee member	Boško Lugović
Committee member	Vesnica Garašić
Committee member	Bruno Tomljenović
Granter	University of Zagreb Faculty of Mining, Geology and Petroleum Engineering (Department of Mineralogy, Petrology and Mineral Resources) Zagreb
Defense date and country	2010-07-15, Croatia
Scientific / art field, discipline and subdiscipline	NATURAL SCIENCES Geology Mineralogy and Petrology
Abstract	Petrološke i geokemijske karakteristike blokova jastučastih bazalta alteriranih u spilite koji su blisko asocirani s pelagičkim sedimentnim stijenama u ofiolitnim melanžima Zagorjesrednjotransdanubijske zone, Dinaridske ofiolitne zone i Vardarske zone ukazuju na njihov sukcesivni nastanak u različitim geotektonkim okolišima. Na temelju sadržaja imobilnih elemenata u tragovima razlučene su četiri skupine bazalta: (1) alkalijski bazalti ploče jako obogaćeni LIL elementima, te LRE i HFS elementima u odnosu na HRE elemente, (2) bazalti E-MORB tipa obogaćeni LRE elementima, (3) bazalti N-MORB tipa osiromašeni LRE elementima u odnosu na HRE elemente i (4) bazalti IAT tipa obogaćeni LRE elementima, ali s izrazito negativnom anomalijom HFS elemenata. Alkalijski bazalti vezani su za fazu intrakontinentalnog riftinga koja prethodi začetku formiranja oceanske kore. Bazalti E-MORB tipa predstavljaju prvu oceansku koru nastalu na hrptu u začetnoj fazi širenja oceana u gornjem trijasu. Bazalti N-MORB tipa tvore koru nastalu na srednjooceanskom hrptu iz već osiromašenog plašta i predstavljaju stijene zrelog oceana. Bazalti IAT tipa su stijene nastale u početnom stadiju intraoceanske subdukcije u protolučnom ekstenzijskom okolišu obducirane ploče. Biostratigrafska analiza relativne starosti radiolarita u statigrafskoj sukcesiji s bazaltima IAT tipa ukazuje na njihove erupcije tijekom gornjeg bajocija do donjeg kalovija. Na taj način ovim radom može se pratiti razvoj oceanskog područja u Dinaridima od intrakontinenentalnog riftinga, vjerojatno krajem ladinika, do intraoceanske subdukcije tijekom srednje jure.
Abstract (english)	Abstract: Petrological and geochemical characteristics of highly altered pillow basalts closely associated with pelagic sedimentary rocks in the blocks incorporated in the ophiolitic melanges of Zagorje–Mid-Transdanubian zone, Dinaridic ophiolite zone and Vardar zone indicate that they must have been succesively generated at various geotectonic settings. Based on the abundance of elements which are immobile during alterations the basaltic rock suite splits into four geochemical groups: (1) within plate alkali basalts with significant enrichments in LILE and HFSE over HREE, (2) E-MORB-type basalts enriched in LREE, (3) N-MORB-type basalts depleted in LREE compared with HREE and (4) IAT-type basalts with LREE enrichment and significant HFSE depletion. Alkali basalts reflect mantle plume related intracontinental rifing volcanism which close precedes formation of the oldest spreading ridge crust in the proto-ocean. The remnants of this crust is represented by the E-MORB-type volcanics which are associated in stratigraphic succesion with Upper Triassic radiolarian cherts. N-MORB-type basalts derived from a depleted mantle and represent pure oceanic crust of a well established ocean. IAT-type basalts developed during initiation of the intraoceanic subduction in a proto-arc extensional setting. Biostratigraphic analysis of radiolarian asemblage of cherts in stratigraphic succesion with IAT-type basalts revealed Upper Baiotian to Lower Callovian ages. The results of this work provide monitoring of geodynamic evolution of Dinaric ocean segment from thestage of intracontinental rifting, most likely of Ladinian age, till intraoceanic subduction during Middle Jurassic.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:169:258762
Study programme	Title: Geology; specializations in: Geology of mineral resources and geophysical explorations Course: Geology of mineral resources and geophysical explorations 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	Access restricted to students and staff of home institution
Terms of use
Repository	Faculty of Mining, Geology and Petroleum Engineering Repository, University of Zagreb
Created on	2015-12-09 11:21:02

Nacionalna i sveučilišna knjižnica u Zagrebu

Dabar