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

Institutional repository: Faculty of Mining, Geology and Petroleum Engineering Repository, University of Zagreb

Cite this document

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

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

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

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 05 November 2024, https://urn.nsk.hr/urn:nbn:hr:169:258762

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 November 05] Available at: https://urn.nsk.hr/urn:nbn:hr:169:258762

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

Metadata
TitleGeokemijske 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
AuthorSanja Simat
MentorBoško Lugović (mentor)
Committee memberBoško Lugović
Committee memberVesnica Garašić
Committee memberBruno Tomljenović
GranterUniversity of Zagreb
Faculty of Mining, Geology and Petroleum Engineering
(Department of Mineralogy, Petrology and Mineral Resources)
Zagreb
Defense date and country2010-07-15, 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)
Languagecroatian
URN:NBNurn:nbn:hr:169:258762
Study programmeTitle: 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 resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2015-12-09 11:21:02