raziskovalna naloga
Katja Oselj (Author), Luka Gale (Mentor), Tea Kolar-Jurkovšek (Co-mentor)

Abstract

Za raziskovalno nalogo je bila opravljena sedimentološka in mikropaleontološka (konodontna) analiza profila srednjetriasnih (ladinijskih) plasti, ki izdanjajo v cestnem odseku Mišji Dol-Gradišče v Posavskem hribovju. Plasti so nagubane in deloma pokrite, zato je bil odsek razdeljen na krajše dele, od katerih so bili nekateri posneti detajlno, drugi pa zgolj popisani. Mikrofacielna analiza je bila narejena na 49 sedimentoloških zbruskih. Za konodontne analize je bilo odvzetih 19 vzorcev teže približno 1,5-2,5 kg. Prepoznanih in opisanih je bilo 12 mikrofaciesov: radiolarijski-filamentni-peloidni packstone; bioklastični-intraklastični grainstone; mikrobreča, bio-litoklastični grainstone, mestoma packstone; mudstone; radiolarijski-filamentni wackestone-packstone; kristalinični dolomit; dolomitiziran bioklastični-intraklastični-peloidni grainstone s terigeno primesjo; kalcilutit; tufski peščenjak; kremenov peščenjak; bioklastični-intraklastični rudstone in muljasto podprta peščena breča. V konodontni združbi nastopajo taksonomske stopnje Budurovignathus gabrielae Kozur, Budurovignathus sp., Cratognathodus kochi (Huckriede), Gladigondolella malayensis Nogami, Gladigondolella tethydis Nogami, Gladigondolella sp., Neogondolella balkanica Budurov & Stefanov, Neogondolella cf. excentrica Budurov & Stefanov, Neogondolella constricta (Mosher & Clark), Neogondolella cornuta Budurov & Stefanov, Neogondolella sp., Paragondolella excelsa Mosher, Paragodnolella liebermani (Kovacs & Kozur), Paragondolella sp., Paragondolella sp. (cf. alpina) (Kozur & Mostler), Paragondolella trammeri (Kozur) in vejnati konodonti. Naštete vrste posneto zaporedje starostno uvrščajo v zgornji ilir-fassan Glede na litološko sestavo zaporedja je sedimentacija potekala v poglobljenem morskem okolju.

Keywords

konodontna združba;zgornji ilir - fassan;Posavske gube;karbonati;klastiti;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL NTF - Faculty of Natural Sciences and Engineering
Publisher: [K. Oselj]
UDC: 55
COBISS: 83693059 Link will open in a new window
Views: 271
Downloads: 69
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Other data

Secondary language: English
Secondary title: conodont assemblage from Ladinian beds between Mišji Dol and Gradišče in Sava hills
Secondary abstract: Sedimentological and micropaleontological (conodont) analysis of the succession of the Middle Triassic (Ladinian) strata was performed. The succession is located by the road section Mišji Dol – Gradišče in the Sava Hills. The beds are deformed by folds and partially covered, so the section was divided into shorter parts, some of them were recorded in detail and other were only listed. Microfacial analysis was performed on 49 sedimentological thin sections. A total of 69 samples were taken for sedimentological and conodont analyses, each weighted approximately 1.5-2.5 kg. 12 microfacies were identified and described: radiolarian-fillament-peloid packstone; bioclastic-intraclastic grainstone; microbreccia, bio-litoclastic grainstone, in places packstone; mudstone; radiolarian-fillament wackestone-packstone; crystalline dolomite; dolomitized bioclastic-intraclastic-peloid grainstone with terrigenous component; calcilutite; tuff sandstone; quartz sandstone; bioclastic-intraclastic rudstone and silty supported sand breccia. In conodont assemblage occur species such as Budurovignathus gabrielae Kozur, Budurovignathus sp., Cratognathodus kochi (Huckriede), Gladigondolella malayensis Nogami, Gladigondolella tethydis Nogami, Gladigondolella sp., Neogondolella balkanica Budurov & Stefanov, Neogondolella cf. excentrica Budurov & Stefanov, Neogondolella constricta (Mosher & Clark), Neogondolella cornuta Budurov & Stefanov, Neogondolella sp., Paragondolella excelsa Mosher, Paragodnolella liebermani (Kovacs & Kozur), Paragondolella sp., Paragondolella sp. (cf. alpina) (Kozur & Mostler), Paragondolella trammeri (Kozur) and ramiform conodonts. Listed species place researched succession in the Upper Illyrian-Fassanian. Based on lithological composition of the sequence, sedimentation took place in a deep marine environment.
Secondary keywords: conodont assemblage;Upper Illyrian % Fassan;Sava Hills;carbonate rocks;clastic rocks;
Type (COBISS): Final paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Naravoslovnotehniška fak., Oddelek za geologijo
Pages: Xi, 52 f.
ID: 13534214