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Iskalni niz: "ključne besede" (foraminifera) .

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1.
Upper Triassic–to Lower Cretaceous Slovenian Basin successions in the northern margin of the Sava Folds
Benjamin Scherman, Boštjan Rožič, Ágnes Görög, Szilvia Kövér, László Fodor, 2023, izvirni znanstveni članek

Povzetek: The evolution of the Slovenian Basin southern margin is currently interpreted based on the successions outcropping in the surroundings of Škofja Loka, on the Ponikve Plateau and in the foothills of the Julian Alps in western Slovenia, as well as from the valley of the Mirna River in south-eastern Slovenia. However, no extensive research on this paleogeographic unit has been carried out in the northern part of the Sava Folds region. Recent field observations permitted the recognition of Upper Triassic to lowermost Cretaceous successions of the Slovenian Basin, including the recently described Middle Jurassic Ponikve Breccia Member of the Tolmin Formation. Based on reambulation-type geological mapping, macroscopic facies observations supported by microfacies analysis and biostratigraphy, three stratigraphic columns were constructed showcasing Slovenian Basin formations on the northern flank of the Trojane Anticline (Sava Folds region). These newly described successions encompass Upper Triassic (Bača Dolomite Formation) and Jurassic–lowermost Cretaceous resedimented limestones and pelagic formations, while the attribution of the Pseudozilian Formation is complex. Based on facies characteristics these successions are similar to those preserved in the Podmelec Nappe (lowermost thrust unit of the Tolmin Nappe) in western Slovenia. The connection between the western and the eastern Slovenian Basin during the Late Triassic-Early Cretaceous interval could be thus recognised.
Ključne besede: Southern Alps, Sava Folds, Slovenian Basin, Jurassic, Ponikve Breccia, stratigraphy, foraminifera
Objavljeno v DiRROS: 15.01.2024; Ogledov: 180; Prenosov: 108
.pdf Celotno besedilo (27,89 MB)

2.
Microfossils from Middle Triassic beds near Mišji Dol, central Slovenia
Katja Oselj, Tea Kolar-Jurkovšek, Bogdan Jurkovšek, Luka Gale, 2023, izvirni znanstveni članek

Povzetek: Middle Triassic beds exposed along the road between Mišji Dol and Poljane pri Primskovem (Posavje Hills) comprise marlstone, tuff, volcaniclastic sandstone, and thin- to medium-bedded limestone and dolostone. The succession was logged and sampled for conodonts. A relatively rich conodont assemblage was determined, consisting of Budurovignathus gabrielae Kozur, Budurovignathus sp., Cratognathodus kochi (Huckriede), Gladigondolella malayensis Nogami, Gladigondolella tethydis Huckriede, Gladigondolella sp., Neogondolella balkanica Budurov & Stefanov, Neogondolella cf. excentrica Budurov & Stefanov, Neogondolella constricta (Mosher & Clark), Neogondolella cornuta Budurov & Stefanov,Neogondolella sp., Paragondolella excelsa Mosher, Paragondolella liebermani (Kovacs & Kozur), Paragondolella trammeri (K o z u r), Paragondolella cf. alpina (Kozur & Mostler), and Paragondolella sp. The assemblage correlates with the upper Anisian and lowermost Ladinian assemblages from the Global Boundary Stratotype Section and Point (GSSP) of the Ladinian at Bagolino in the Southern Alps in northern Italy. Along with conodonts, numerous specimens of benthic foraminifera Nodobacularia? vujisici Urošević & Gaździcki were recovered from the lowermost part of the succession. Previous research on this taxon is critically evaluated.
Ključne besede: Dinarides, Sava Folds, Middle Triassic, upper Anisian, lower Ladinian, basin, volcaniclastics, conodonts, foraminifera
Objavljeno v DiRROS: 15.01.2024; Ogledov: 138; Prenosov: 47
.pdf Celotno besedilo (11,54 MB)

3.
Multi-method study of the Roman quarry at Podpeč sedimentary succession and stone products
Rok Brajkovič, Luka Gale, Bojan Djurić, 2022, izvirni znanstveni članek

Povzetek: The paper presents a multi-method characterisation of the Roman quarry of the middle Lower Jurassic (Pliensbachian) limestone situated in the village of Podpeč, south of Ljubljana, and examples of the placement of stone products made from micritic, fine-grained, and oolithic facies into the known extent of the quarry. 23 m of the rock succession from the ancient quarry was exposed at the northern tip of the St. Ana Hill by archaeological trenching. Petrological, micropaleontological, mineralogical, geochemical, and isotopic analyses of carbon, oxygen, and strontium were performed in order to characterise the rocks exploited in the quarry. Additionally, a new detailed geological map of the wider Podpeč area was prepared, which defines in detail the lithostratigraphic units in the area.
Ključne besede: Lower Jurassic, Podbukovje Formation, provenance, facies, foraminifera, geochemistry, Emona, geoarchaeology
Objavljeno v DiRROS: 27.07.2022; Ogledov: 711; Prenosov: 250
.pdf Celotno besedilo (6,47 MB)

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