20.500.12556/RUL-111014 Mikrofacies in fosili karbonatnih olistolitov v ladinijskih plasteh iz Dol pri Litiji Microfacies and biota from carbonate olistoliths in Ladinian beds at Dole pri Litiji V Sloveniji so izmed triasnih grebenov dokaj dobro raziskani norijsko-retijski in karnijski grebeni, ne pa tudi ladinijski. V okolici Dol pri Litiji v tufskem peščenjaku, ki se menjava s tankoplastnatim kalkarenitom, ležijo številni bloki masivnega apnenca. Nekateri vsebujejo makroskopsko prepoznavne solenoporaceje, redko tudi kolonijske korale. Medtem pa podrobnejše raziskave o sestavi teh apnencev do sedaj še niso bile narejene. Namen diplomske naloge je bil kvalitativno in kvantitativno določiti sestavo blokov, bioto, določiti izvor blokov. Vsega skupaj sem določil 11 različnih mikrofaciesev, od katerih eden predstavlja tufski peščenjak iz okolne kamnine. Rezultati so pokazali, da je kvantitativna analiza podala delno ujemanje z kvalitativno razvrstitvijo zbruskov v mikrofaciese. Ugotovil sem, da biota kaže določene podobnosti z spodnjekarnijskimi apnenci iz drugih delov Slovenije in ima zelo veliko skupnega s podobnimi bloki iz formacije San Cassiano v Dolomitih. Fosilna združba je značilno plitvomorska in kaže na grebenski izvor blokov. Zato ugotavljam, da je prišlo do resedimentacije teh olistolitnih blokov v bazensko okolje. Fosilna združba potrjuje ladinijsko starost blokov. Research has been done in Slovenia regarding the Norian-Rhaetian and Carnian reefs but not the Ladinian. In the vicinity of Dole pri Litiji, inside the tuff sandstone, which interchanges with thin-layered calcarenite, lie numerous blocks of massive limestone. Solenoporacea and rarely colony corals can be seen macroscopically in some of them. Until now, no detailed research has been performed regarding the composition of these limestones. The purpose of this diploma work is to qulitatively and quantitatively determine the composition of the blocks, to determine the biota and the source of the blocks. Altogether 11 different microfacies can be distinguished. The results have shown that the qualitative analysis partially coincides with the qualitative sorting of the thin sections into microfacies. The studied biota shows many similarities with the biota of Lower Carnian limestones from other parts of Slovenia and has much in common with the biota from the San Cassiano formation in the Dolomites of Italy. The fossil association is characteristically shallow water and indicates a reef origin of the blocks. It can be concluded that the olistolith blocks must have been resedimented. The fossil association generally coincides with the Ladinian age. Dole pri Litiji ladinij mikrofacies olistolitni bloki Dole pri Litiji Ladinian microfacies olistolith blocks true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2019-09-22 07:15:57 2019-09-22 07:15:59 2022-08-23 03:40:12 0000-00-00 00:00:00 2019 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 70498 1518430 4439.pdf 4439.pdf 1 85DEB97EB89455767E541CCA52F8DA08 b8056600297e62229ca897e046f90c45a5afb405179ad89aeff0aa2af1b66bc5 46910ddc-a1b7-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=122779 Naravoslovnotehniška fakulteta 0 0 0