Geological background research for museum Nature of Bela krajina

Magisterij predstavlja osnovna izhodišča za strokovne geološke podlage za muzej Narava Bele krajine. V njem je predstavljenih šest izbranih sedimentacijskih okolij, ki opisujejo glavna okolja nastanka kamnin Bele krajine. Bela krajina je kraška pokrajina, kjer prevladujejo mezozojski karbonati. Izbrana sedimentacijska okolja so zgornjetriasne medplimske ravnice, spodnjejursko lagunsko okolje, zgornjejurski koralni-stromatoporoidni grebeni, spodnjekredna grebenska in zagrebenska okolja, zgornjekredni flišni razvoj ter močvirsko okolje iz obdobja miocena in pliocena. Za vsa kamninska zaporedja izbranih sedimentacijskih okoljih je narejena tudi korelacija s kamninskimi zaporedji enakih starosti na območju Slovenije in Hrvaške ter predlogi za prikaz posameznih sedimentacijskih okolij. Bolj podrobno so opisana sedimentacijska okolja iz obdobja jure in spodnje krede, saj so ta na območju Bele krajine najmanj raziskana. Za kamnine teh okolij so bile narejene detajlnejše raziskave – posneta sedimentološka profila spodnjejurske starosti v merilu 1:50, izdelana shematska rekonstrukcija kamnoloma, kjer se pojavljajo spodnjekredni apnenci z rudisti, narejena mikrofacielna in mikropaleontološka analiza odvzetih vzorcev kamnin. Na podlagi rezultatov smo lahko zaključili, da so sedimentacijska okolja iz posameznih geoloških obdobij primerljiva oziroma sovpadajo z ostalimi generalnimi geološkimi razvoji na območju nekdanje Dinarske karbonatne platforme. Strokovne podlage so pomembna osnova za vsebinsko in grafično predstavitev sedimentacijskih okolij, ki bodo obiskovalcem muzeja omogočila nazoren in zanimiv vpogled v geološko preteklost in razvoj ozemlja območja današnje Bele krajine.Master‘s thesis is the basic starting point for professional geological bases for the Nature Museum of Bela krajina. There are presented six selected sedimentary environments that describe the main environments of Bela krajina rock formation. Bela krajina is a karst landscape dominated by Mesozoic carbonates. Selected sedimentary environments are the Upper Triassic intertidal plains, the Lower Jurassic lagoon environment, the Upper Jurassic coral-stromatoporoid reefs, the Lower Cretaceous reef and postreef environments, the Upper Cretaceous flysch development and the Miocene and Pliocene swamp. For all rock sequences of selected sedimentary environments, there is made a correlation with rock sequences of the same age in Slovenia as well as in Croatia, as well as proposals for the presentation of individual sedimentary environments. The Jurassic and Lower Cretaceous sedimentary environments are described in more detail, since they are the least studied in the area of Bela Krajina. There has been a more detailed research for the rocks of these environments – recorded sedimentological profiles of the Lower Jurassic age at the scale of 1:50, schematic reconstruction of the quarry was made, where the Lower Cretaceous limestones with rudists occur, and the microfacial and micropaleontological analysis of the taken rock samples was made. According to the analyzes, we could conclude that sedimentary environments from individual geological periods are comparable or coincide with other general geological developments in the area of the former Dinaric Carbonate Platform. The professional basis will be an important basis for the pictorial and content presentation of sedimentary environments, which will give visitors of the museum a clear and interesting insight into the geological past and development of the territory of the present-day Bela Krajina