Naslov
On the identification of the provenance of Lower Cretaceous calcarenite in stone products from Emona (present-day Ljubljana, Slovenia)

Autori
Brajkovič, Rok ; Djurić, Bojan ; Cvetko Tešović, Blanka ; Rožič, Boštijan ; Gale Luka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Zbornik/Povezetkov/Book of Abstract / Rman, Nina ; Bračič Železnik, Branka ; Žvab Rožič, Petra - Ljubljana : Slovensko geološko društvo, 2022, 26-26

ISBN
978-961-95928-2-3

Skup
6. slovenski geološki kongres (GeoZS 2022) "Vedeti (ne)vidno - vloga geologije v naši družbi"

Mjesto i datum
Rogaška Slatina, Slovenija, 03.10.2022. - 05.10.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Provenance, Stone products, Antiquity, Emona, Early Cretaceous

Sažetak
A group of 34 stone products found at Emona, consisting of previously stratigraphically undefined limestone, was studied. The aim of this study was to define its microfacies types and stratigraphic position. In addition, our goal was to check if suitable rocks could be found within radii of local or regional origin or if the stone was imported. Thin sections were made from stone products. The limestone varieties were classified according to Dunham (1962). Stratigraphic determinations were established on benthic and planktonic foraminifera. Based on the age and facies of the rock from the stone products, we conducted a field campaign to sample suitable rocks in the vicinity of Emona/Ljubljana. The studied stone products are represented by sepulchral, votive, and architectural character, including various worked and unworked slabs. The colour of the stone is light grey with shades of brown or pink. A macroscopic distinguishing feature is the presence of small angular black grains (microscopically, fragments of rudist shells) up to a few milometers in size. Stone products were made of fine- and coarse-grained calcarenite and breccia varieties. Common to all is the presence of the following lithoclasts: boundstone with Bacinella-type microproblematica, bioclastic wackestone with calcispheres, sponge spicules and planktonic foraminifera, and mudstone. The foraminifer assemblage corresponds late Aptian–lower Cenomanian. The corresponding facies types can be found at the margins of the carbonate platform or within the platform to basin transition zone (Dragičevič and Velič, 2002). In the radii of local origin, suitable facies were analysed from the Lower Flyschoid Formation in the area of Medvode and Smlednik. This formation consists of facies types comparable in age and composition to those of stone products. Due to the proximity of Emona and the water transport route (Sava River), privile

Izvorni jezik
Engleski

Znanstvena područja
Geologija

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